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      1 E2fsprogs 1.41.14 (December 22, 2010)
      2 =====================================
      3 
      4 Fix spurious complaint in mke2fs where it would complain if the file
      5 system type "default" is not defined in mke2fs.conf.
      6 
      7 The resize2fs program will no longer clear the resize_inode feature
      8 when the number reserved group descriptor blocks reaches zero.  This
      9 allows for subsequent shrinks of the file system to work cleanly for
     10 flex_bg file systems.
     11 
     12 The resize2fs program now handles devices which are exactly 16T;
     13 previously it would give an error saying that the file system was too
     14 big.
     15 
     16 E2fsck (and the libext2fs library) will not use the extended rec_len
     17 encoding for file systems whose block size is less than 64k, for
     18 consistency with the kernel.
     19 
     20 Programming notes
     21 -----------------
     22 
     23 E2fsprogs 1.41.13 would not compile on big-endian systems.  This has
     24 been fixed.  (Addresses Sourceforge Bug: #3138115)
     25 
     26 The ext2fs_block_iterator2() function passed an incorrect ref_offset
     27 to its callback function in the case of sparse files.  (Addresses
     28 Sourceforge Bug: #3081087)
     29     
     30 Fix some type-punning warnings generated by newer versions of gcc.
     31 
     32 
     33 E2fsprogs 1.41.13 (December 13, 2010)
     34 =====================================
     35 
     36 E2fsck now supports the extended option "-E journal_only", which
     37 causes it to only do a journal replay.  This is useful for scripts
     38 that want to first replay the journal and then check to see if it
     39 contains errors.
     40 
     41 E2fsck will now support UUID= and LABEL= specifiers for the -j option
     42 (which specifies where to find the external journal).  (Addresses
     43 Debian Bug #559315)
     44 
     45 E2fsck now has support for the problems/<problem code>/force_no
     46 configuration option in e2fsck.conf, which forces a problem to not be
     47 fixed.
     48 
     49 Dumpe2fs will now avoid printing large negative offsets for the bitmap
     50 blocks and instead print a message which is a bit more helpful for
     51 flex_bg file systems.
     52 
     53 Mke2fs will now check the file system type (specified with the -t
     54 option) to make sure it is defined in the mke2fs.conf file; if it is
     55 not, it will print an error and abort.  If the usage type (specified
     56 with the -T option) is not defined in mke2fs.conf, mke2fs will print a
     57 warning but will continue.  (Addresses Debian Bug #594609)
     58 
     59 Clarified error message from resize2fs clarifying that on-line
     60 shrinking is not supported at all.  (Addresses Debian Bug #599786)
     61     
     62 Fix an e2fsck bug that could cause a PROGRAMMING BUG error to be
     63 displayed.  (Addresses Debian Bug #555456)
     64 
     65 E2fsck will open the external journal in exclusive mode, to prevent
     66 the journal from getting truncated while it is in use due to a user
     67 accidentally trying to run e2fsck on a snapshotted file system volume.
     68 (Addresses Debian Bug #587531)
     69 
     70 Fix a bug in e2fsck so it has the correct test for the EOFBLOCKS_FL
     71 flag.
     72 
     73 The tune2fs program can now set the uninit_bg feature without
     74 requiring an fsck.
     75 
     76 The tune2fs, dumpe2fs, and debugfs programs now support the new ext4
     77 default mount options settings which were added in 2.6.35.
     78 
     79 The e2fsck and dumpe2fs programs now support the new ext4 superblock
     80 fields which track where and when the first and most recent file
     81 system errors occurred.  These fields are displayed by dumpe2fs and
     82 cleared by e2fsck.  These new superblock fields were added in 2.6.36.
     83 
     84 Debugfs now uses a more concicse format for listing extents in its
     85 stat command.  This format also includes the interior extent tree
     86 blocks, which previously was missing from stat's output for
     87 extent-based files.
     88 
     89 Debugfs has a new option, -D, which will request Direct I/O access of
     90 the file system.
     91 
     92 Mke2fs will skip initializing the inode table if a device supports
     93 discard and the discard operation will result in zero'ed blocks.
     94 
     95 Badblocks will now correctly backspace over UTF-8 characters when
     96 displaying its progress bar.  (Addresses Gentoo Bug #309909; Addresses
     97 Debian Bugs #583782 and #587834)
     98 
     99 E2freefrag will now display the total number of free extents.
    100 
    101 Resize2fs -P no longer requires a freshly checked filesystem before
    102 printing the minimum resize size.
    103 
    104 Fixed a floating point precision error in a binary tree search routine
    105 that can lead to seg fault in e2fsck and resize2fs.
    106 
    107 Fixed a bug in e2fsck where if both the original and backup superblock
    108 are invalid in some way, e2fsck will fail going back to the original
    109 superblock because it didn't close the backup superblock first, and
    110 the exclusive open prevented the file system from being reopened.
    111 
    112 Fixed a big in e2freefrag which caused getopt parsing to fail on
    113 architectures with unsigned chars.  (Addresses Gentoo Bug: #299386)
    114 
    115 Clarified an mke2fs error message so a missed common in an -E option
    116 (i.e., mke2fs -t ext4 -E stride=128 stripe-width=512 /dev/sda1")
    117 results in a more understandable explanation to the user.
    118 
    119 Mke2fs now displays the correct valid inode ratio range when
    120 complaining about an invalid inode ratio specified by the user.
    121 
    122 Mke2fs now understands the extended option "discard" and "nodiscard",
    123 and the older option -K is deprecated.  The default of whether
    124 discards are enabled by default can be controled by the mke2fs.conf
    125 file.
    126 
    127 Mke2fs's handling of logical and physical sector sizes has been
    128 improved to reflect the fact that there will be some SSD's with 8k and
    129 16k physical sectors arriving soon.  Mke2fs will no longer force block
    130 size to be the physical sector size, since there will be devices where
    131 the physical sector size is larger than the system's page size, and
    132 hence larger than the maximal supported block size.  In addition, if
    133 the minimal and optimal io size are not exported by the device, and
    134 the physical sector size is larger than the block size, the physical
    135 sector size will be used to set the Raid I/O optimization hints in the
    136 superblock.
    137 
    138 E2fsck will now display a better, more specific error message when the
    139 user enters a typo'ed device name, instead of blathering on about
    140 alternate superblocks.
    141 
    142 Fixed various Debian Packaging Issues
    143 
    144 Updated/clarified man pages (Addresses Debian Bugs: #580236, #594004,
    145 #589345, #591083; Addresses Launchpad Bug: #505719)
    146 
    147 Update the Chinese, Chzech, Dutch, French, Germany, Indonesian,
    148 Polish, Swedish, and Vietnamese translations.
    149 
    150 
    151 Programmer's Notes
    152 ------------------
    153 
    154 Fix a dependency definition for the static and profiled blkid
    155 libraries which could cause compile failures in some configurations.
    156 (Addresses Debian Bug: #604629)
    157     
    158 Add support for Direct I/O in the Unix I/O access layer.
    159 
    160 Fixed a memory leak in the Unix I/O layer when changing block sizes.
    161 
    162 Fixed minor memory leaks in mke2fs.
    163 
    164 Added a new function to the ext2fs library, ext2fs_get_memalign().
    165 
    166 The tst_super_size test program will check to make sure the superblock
    167 fields are correctly aligned and will print them out so they can be
    168 manually checked for correctness.
    169 
    170 Fixed some makefile dependencies for test programs in lib/ext2fs.
    171 
    172 Reserved the feature flags and superblock fields needed for the Next3
    173 snapshot feature.
    174 
    175 Reserved the feature flags for EXT4_FEATURE_INCOMPAT_DIRDATA and
    176 EXT4_INCOMPAT_EA_INODE.
    177 
    178 
    179 E2fsprogs 1.41.12 (May 17, 2010)
    180 ================================
    181 
    182 Mke2fs now gives a correct error message if the external journal
    183 device is not found.  (Addresses Red Hat Bug #572935)
    184 
    185 Resize2fs -P will now refuse to print a minimum size if the file
    186 system is not clean.  Previously it would go ahead and print a minimum
    187 size anyway, which might not be correct, leading to user confusion.
    188 
    189 E2fsck now tests for extents that begin at physical block 0 and
    190 rejects them as invalid.  (Addresses Google Bug: #2573806)
    191     
    192 Fixed a bug in e2fsck which could cause it to crash when trying to
    193 remove an invalid extent and the block bitmaps hadn't yet been loaded.
    194 (Addresses SourceForge Bug: #2971800)
    195     
    196 E2fsck now will completely skip time-based checks if the system clock
    197 looks insane or the option broken_system_clock is set in
    198 /etc/e2fsck.conf.
    199 
    200 E2fsck would previously report an i_blocks corruption for a 4T file
    201 created using posix_fallocate; this bug has been fixed.
    202 
    203 E2fsck will now correctly mark a sparse journal as invalid and will
    204 delete and recreate the journal to address the problem.
    205 
    206 E2fsck would previously incorrectly ask the user whether she would
    207 like to abort the file system check after finding a problem --- and
    208 then abort regardless of the user's answer.  This is annoying, and
    209 has been fixed.
    210 
    211 E2fsck can now continue even if it fails to recreate the resize
    212 inode; previously it would just abort the file system check
    213 altogether.
    214 
    215 E2fsck could potentially remove directory entries for inodes found in
    216 the unused region of the inode table; this would generally happen on
    217 ext4 file systems that do not use journaling.  This bug has been fixed
    218 by not clearing these directory entries once it has been established
    219 that bg_unused_inodes may not be trustworthy; once pass #2 has been
    220 completed, e2fsck will restart the file system check from the
    221 beginning, and then it will be safe to delete any directory entries
    222 pointing to inodes that appear to be deleted.  (Addresses Google Bug:
    223 #2642165)
    224     
    225 E2fsck will not try to set the block group checksums if the user
    226 cancels the fsck with a control-C.  It's a bad idea to set the
    227 checksums if e2fsck hasn't been completed, and it often results an the
    228 error message, "Inode bitmap not loaded while setting block group
    229 checksum info".  (Addresses Launchpad Bug: #582035)
    230 
    231 The mke2fs program now queries the kernel for the physical as well as
    232 the logical sector size, and will not allow a blocksize below the
    233 logical, and will strongly encourage a blocksize at least as big as
    234 the physical blocksize.  This is needed for 4k sector drives that
    235 emulate 512 byte sector sizes.
    236 
    237 Mke2fs will now allow a flex_bg size of 1.  This is unusual, and
    238 rarely needed, but it is a legal value.
    239 
    240 E2fsck will check for cases where the EOFBLOCKS_FL is set when it is
    241 not needed, and offer to clear it; this is a sign of a kernel bug, but
    242 more importantly, some released kernels may crash when this situation
    243 is encountered on ext4 file systems.  (Addresses Google Bug: #2604224)
    244     
    245 E2fsck will use the EOFBLOCKS_FL flag exclusively to check whether
    246 i_size is correct.  (Kernels starting with 2.6.34 will set
    247 EOFBLOCKS_FL.)
    248 
    249 The com_err library will now only output ^M (a CR character) when the
    250 tty is in raw mode.
    251 
    252 Update the Czech, Chinese, Dutch, French, Germany, Indonesian, Polish,
    253 and Vietnamese translations.
    254 
    255 Fixed various Debian packaging issues --- see debian/changelog for
    256 details.  (Addresses Debian Bugs: #571247, #563487)
    257 
    258 
    259 Programmer's Notes
    260 ------------------
    261 
    262 The regression test suite now uses its own mke2fs.conf file, so that
    263 downstream distributions want change the mke2fs.conf file which is
    264 distributed in the RPM or dpkg file, without worrying about screwing
    265 up the regression test results.
    266 
    267 Always build namei.o so that building with configure --disable-debugfs
    268 works correctly.  Long-term, if we care about reduced e2fsprogs
    269 builds, we need a more general solution for deciding what .o files are
    270 needed for a particular build.  Given that install floppies are going
    271 (gone?) the way the dodo bird, we probably don't care, though.
    272 (Addresses Sourceforge Bug: #2911433)
    273 
    274 Add configure options --enable-symlink-build and
    275 --enable-symlink-install, which allow e2fsprogs be built using
    276 symlinks instad of hard links, and to be installed using symlinks
    277 instead of hard links, respectively.  It is useful when the file
    278 system where the build is taking place, or the file system where
    279 e2fsprogs is installed, can't handle hard links for some reason.
    280 (Addresses Sourceforge Bug: #1436294)
    281 
    282 Fixed compile warning in mke2fs.c.
    283 
    284     
    285 E2fsprogs 1.41.11 (March 14, 2010)
    286 ==================================
    287 
    288 E2fsck will no longer give a fatal error and abort if the physical
    289 device has been resized beyond 2**32 blocks.  (Addresses Launchpad
    290 Bug: #521648)
    291 
    292 Debugfs has a bug fixed so that "logdump -b <blk>" now properly shows
    293 the allocation status of the block <blk>.  (Addresses Debian Bug:
    294 #564084)
    295     
    296 E2fsck now prints a much more emphatic and hopefully scary message
    297 when a file system is detected as mounted while doing a read/write
    298 check of the filesystem.  Hopefully this will dissuade users from
    299 thinking, "surely that message doesn't apply to *me*" :-(
    300 
    301 E2fsck -n will now always open the file system read-only.  We now
    302 disallow certain combination of options which previously were manual
    303 exceptions; this is bad because it causes users to think they are
    304 smarter than they really are.  So "-n -c", "-n -l", "-n -L", and "-n
    305 -D" are no longer supported.  (Addresses Launchpad Bug: #537483)
    306     
    307 In e2fsprogs 1.41.10, mke2fs would ask for confirmation to proceed if
    308 it detected a badly aligned partition.  Unfortunately, this broke some
    309 distribution installation scripts, so it now just prints the warning
    310 message and proceeds.  (Addresses Red Hat Bug: #569021. Addresses
    311 Launchpad Bug: #530071)
    312     
    313 Mke2fs would take a long time to create very large journal files for
    314 ext4.  This was caused by a bug in ext2fs_block_iterate2(), which is
    315 now fixed.
    316 
    317 E2fsck now understands the EOFBLOCKS_FL flag which will be used in
    318 2.6.34 kernels to make e2fsck not complain about blocks deliberately
    319 fallocated() beyond an inode's i_size.
    320 
    321 E2fsprogs 1.41.10 introduced a regression (in commit b71e018) where
    322 e2fsck -fD can corrupt non-indexed directories when are exists one or
    323 more file names which alphabetically sort before ".".  This can happen
    324 with ext2 filesystems or for small directories (take less than a lock)
    325 which contain filenames that begin with a space or some other
    326 punctuation mark.  (Addresses Debian Bug: #573923, Addresses Launchpad
    327 Bug: #525114)
    328 
    329 
    330 Programmer's Notes
    331 ------------------
    332 
    333 Add new test, f_rehash_dir, which checks to make sure e2fsck -D works
    334 correctly.
    335 
    336 The libcom_err function now has support for Heimdal's com_right_r
    337 function().  (Addresses Sourceforge Bug: #2963865, Addresses Debian
    338 Bug: #558910)
    339 
    340 
    341 E2fsprogs 1.41.10 (February 7, 2010)
    342 ====================================
    343 
    344 Fix resize2fs bug which causes it to access invalid memory.
    345 
    346 Add libss support for libreadline.so.6.
    347     
    348 Fix e2fsck's check for extent-mapped directory with an incorrect file
    349 type.
    350 
    351 Add new e2fsck.conf configuration option, default/broken_system_clock
    352 to support systems with broken CMOS hardware clocks.  Also, since too
    353 many distributions seem to have broken virtualization scripts now,
    354 e2fsck will by default accept dates which are off by up to 24 hours by
    355 default.  (Addresses Debian Bugs: #559776, #557636)
    356 
    357 Fix a bug where mke2fs may not use the best placement of the inode
    358 table when there is only room for a single block group in the last
    359 flex_bg.
    360 
    361 E2fsck is now smarter when it needs to allocate blocks in the course
    362 of fixing file system problems.  This reduces the number of spurious
    363 differences found in pass #5.
    364 
    365 E2fsck will no longer rehash directories which fit in a single
    366 directory block.
    367 
    368 E2fsck now correctly handles holes in extent-mapped directories (i.e.,
    369 sparse directories which use extents).
    370 
    371 Fix big-endian problems with ext2fs_bmap() and ext2fs_bmap2().
    372 
    373 Fix a bug in filefrag where on platforms which can allow file systems
    374 with 8k blocks, that it doesn't core dump when it sees a file system
    375 with 8k block sizes.  (Thanks to Mikulas Patocka for pointing this
    376 out.)
    377 
    378 E2fsck will correctly fix directories that are have an inaccurate
    379 i_size as well as other problems in a single pass, instead of
    380 requiring two e2fsck runs before the file system is fully fixed.
    381 
    382 Fix e2fsck so it will correctly find and detect duplicate directory
    383 entries for non-indexed directories.  ( Addresses Sourceforge Bug:
    384 #2862551)
    385     
    386 Mke2fs will use BLKDISCARD to pre-discard all blocks on an SSD or
    387 thinly-provisioned storage device.  This can be disabled using the -K
    388 option.
    389 
    390 Enhance libext2fs so it works around bug in Linux version 2.6.19
    391 and earlier where the /proc/swaps file was missing the header on
    392 the first line.
    393 
    394 Fix bug in Linux version 2.6.19 and earlier where the /proc/swaps file
    395 was missing the header on the first line.
    396 
    397 Fix some big-endian bugs in e2fsck and libext2fs.
    398 
    399 Fix resize2fs so it works correctly on file systems with external
    400 journals instead of failing early with the error "Illegal inode
    401 number".
    402 
    403 Fix libss so that it does not seg fault when using a readline library
    404 which does not supply a readline_shutdown() function.
    405 
    406 Updated dumpe2fs's usage message so it correctly gives the right
    407 arguments summary for "-o superblock=<num>" and "-o blocksize=<num>".
    408 (Addresses Launchpad Bug: #448099)
    409    
    410 Teach libext2fs to ignore the high 32 bits of the i_blocks field
    411 when huge_file file system feature is set, but the inode does not
    412 have the HUGE_FILE_FL flag set.
    413 
    414 Fix e2fsck's handling of 64-bit i_blocks fields.
    415 
    416 E2fsck will now print "Illegal indirect block", "Illegal
    417 double-indirect block", etc., instead of "Illegal block #-1" or
    418 "Illegal block #-2", etc.  This makes it easier for users to
    419 understand what has gone wrong.  (Addresses SourceForge Bug: #2871782)
    420 
    421 Mke2fs now will obtain get device topology information from blkid and
    422 use it to populate the superblock stride and stripe sizes.  It will
    423 also warn if the block device is misaligned
    424 
    425 Fix file descriptor leaks in fsck and debugfs.  (Addresses Novell Bug:
    426 ##524526)
    427 
    428 Fix the libext2fs library code to round up the bitmap size to a 4-byte
    429 boundary, to prevent spurious seg faults caused by the x86
    430 architecture.  This doesn't affect Linux systems, but was a major
    431 problem on a number of *BSD systems.  (Addresses Sourceforge Bug:
    432 #2328708)
    433 
    434 Fix resize2fs's minimum size required for a file system so it doesn't
    435 fail when "resize2fs -M" is run.  (Addresses RedHat Bugzilla: #519131)
    436     
    437 Dumpe2fs now prints summary information about the contents of the
    438 journal.
    439     
    440 Avoid printing scary error messages when e2fsck starts running
    441 problems on low-memory systems, as it tends to panic and mislead the
    442 user.  (Addresses Debian Bug: #509529)
    443 
    444 Fix blkid's modules.dep parser so it handles compressed (.ko.gz)
    445 modules files.  (Address Red Hat Bug: #518572)
    446     
    447 Fix tune2fs so it can add a journal when an extent-enabled file system
    448 is mounted.  (Addresses Launchpad bug: #416648)
    449 
    450 Update Czech, Indonesian, Polish and Vietnamese translations (from the
    451 Translation Project).
    452     
    453 Update/clarify man pages.  (Addresses Sourceforge Bug: #2822186)
    454 
    455 Fixed various Debian packaging issues --- see debian/changelog for
    456 details.  (Addresses Debian Bugs: #540111)
    457 
    458 Programmer's Notes
    459 ------------------
    460 
    461 The configure script supports the --with-cc, --with-ccopts, and
    462 --with-ldopts options.  Instead, the more standard use of CC=,
    463 CCFLAGS=, and LDFLAGS= in the configure command line is used instead.
    464 Also, --with-ld, which never worked, was also removed.
    465 (Addresses Sourceforge Bug: #2843248)
    466 
    467 The in-tree header files are only used if the in-tree uuid or blkid
    468 libraries are used.  Otherwise, use the system-provided uuid or blkid
    469 header files if using the system-provided libraries.
    470 
    471 Fix some build failures caused by --disable-* configure options.
    472 
    473 Work around a bug in autoconf 2.64.
    474 
    475 
    476 E2fsprogs 1.41.9 (August 22, 2009)
    477 ==================================
    478 
    479 Fix a bug in e2fsck routines for reallocating an inode table which
    480 could cause it to loop forever on an ext4 filesystem with the FLEX_BG
    481 filesystem feature with a relatively rare (and specific) filesystem
    482 corruption.  This fix causes e2fsck to try to find space for a new
    483 portion of the inode table in the containing flex_bg, and if that
    484 fails, the new portion of the inode table will be allocated in any
    485 free space available in the filesystem.
    486 
    487 Make e2fsck less annoying by only asking for permission to relocate a
    488 block group's inode table once, instead of for every overlapping
    489 block.  Similarly, only ask once to recompute the block group
    490 checksums, instead of once for each corrupted block group's checksum.
    491 
    492 Fix filefrag to avoid print the extent header if the FIEMAP ioctl is
    493 not present, and it needs to fall back to using the FIBMAP ioctl.
    494 
    495 Fix filefrag to correctly print the number of extents for zero-length
    496 files.  (Addresses Debian Bug: #540376)
    497 
    498 Filefrag now has a -B option which forces the use of the FIBMAP ioctl
    499 to more easily debug the FIBMAP code.
    500 
    501 Fixed filefrag for non-extent based files.
    502 
    503 Add a new program, e2freefrag, which displays information about the
    504 free space fragmentation in an ext2/3/4 filesystem.
    505 
    506 Fix inode resizing via tune2fs -I so that it works correctly in the
    507 face of non-empty bad blocks inodes, and if the filesystem was
    508 formatted using the "mke2fs -E stride=N" option for RAID arrays.
    509 
    510 Fix regression in ext2fs_extent_set_bmap() caused e2fsck -fD to fail
    511 and corrupt large directories if the directory needs to shrink by more
    512 than one block.  (Addresses Debian Bug: #537510)
    513     
    514 Fix e2fsck's buggy_init_scritps=1 so that the if the last write and/or
    515 last mount times are in the future, they are corrected even if
    516 buggy_init_scripts is set.  This is needed because otherwise resize2fs
    517 will refuse to resize the filesystem, even after running "e2fsck -f".
    518 (Addresses Launchpad bug: #373409)
    519 
    520 E2fsck will now print much fuller information when the last mount time
    521 or last written time is in the future, since most people can't seem to
    522 believe their distribution has buggy init scripts, or they have a
    523 failed CMOS/RTS clock battery.
    524 
    525 Enhance dumpe2fs to dump the extent information via the 'stat'
    526 command, and more detailed extent information via the new command
    527 'dump_extents'.
    528     
    529 Update French, Polish, Czech, and Sweedish translation from the
    530 Translation Project.
    531 
    532 Fixed various Debian packaging issues --- see debian/changelog for
    533 details.
    534 
    535 Programmer's Notes
    536 ------------------
    537 
    538 Fixed miscellaneous gcc -Wall warnings.
    539 
    540 Fixed memory leak in error path in ext2fs_block_iterate2()
    541 
    542 Fixed non-Linux build of the intl directory by adding support for the
    543 E/Q/V macros.
    544 
    545 The bitmap read/write functions now treat uninitialized bitmaps as
    546 unallocated; this fixes a number of problems in all e2fsprogs for ext4
    547 filesystems when there is a need to allocate new blocks or inodes, and
    548 there aren't any free blocks or inodes in the already-used block
    549 groups.
    550 
    551 Improve ext2fs_extent_set_bmap() to avoid creating new extents which
    552 get inserted into the extent tree when they are not needed.
    553     
    554 
    555 E2fsprogs 1.41.8 (July 11, 2009)
    556 ================================
    557 
    558 Fix resize2fs's online resizing, fixing a regression which in
    559 e2fpsrogs 1.41.7.   (Addresses Debian Bug: #535452)
    560 
    561 Fix potential filesystem corruptions caused by using resize2fs to
    562 shrinking ext4 filesystems with extents enabled.  (Addresses Red Hat
    563 Bug: #510379)
    564 
    565 Optimize uuid_generate() to avoid running uuidd if it is not setuid or
    566 setgid and the currently running program doesn't have write access to
    567 the uuidd work directory.
    568 
    569 Add safety checks (for non-Linux systems) so that uuidd isn't run with
    570 file descriptors 0, 1, and 2 closed; and if they are closed, uuidd
    571 will be careful not to close the file descriptor for its unix domain
    572 socket when it detaches itself from the controlling tty.  Also add
    573 safety checks so that if the unix domain socket between the uuid
    574 library and uuidd program is closed for any reason, both the library
    575 and the uuidd will return an appropriate error code instead of looping
    576 in an infinite loop.
    577 
    578 The e2croncheck script, which creates an LVM snapshot and then checks
    579 the ext3/4 filesystem via the LVM snapshot, has been added to the
    580 contrib directory.
    581 
    582 Fix filefrag program for files that have more than 144 extents.
    583 
    584 Update French, Polish, Czech, Indonsian, and Sweedish translation from
    585 the Translation Project.
    586 
    587 Fixed various Debian packaging issues --- see debian/changelog for
    588 details.  (Addresses Debian Bug #535530)
    589 
    590 Update/clarify man pages.
    591 
    592 Programmer's Notes
    593 ------------------
    594 
    595 Fix compilation problem when configured with --disable-uuid.
    596 
    597 Don't build uuidgen if configured with --disable-uuid.
    598 
    599 Add the new library function ext2fs_test_inode_bitmap_range(), and
    600 optimized ext2fs_test_block_bitmap_range(), which will be needed for
    601 future optimizations for e2fsck.
    602 
    603 Fix makefile dependencies for libcom_err so that the Makefiles work
    604 well on non-GNU make program.  (Addresses Sourceforge Patches: #2813809)
    605 
    606 Enhance the build system so that the full set of commands executed by
    607 the Makefiles are displayed, instead of the Linux kernel summary
    608 output, if the build was configured with --enable-verbose-makecmds, or
    609 if GNU make is in use and the V variable is non-null, i.e., via "make
    610 V=1".
    611 
    612 
    613 E2fsprogs 1.41.7 (June 29, 2009)
    614 ================================
    615 
    616 Fix a bug in libext2fs which can cause e2fsck and resize2fs to write
    617 uninitalized data into the portion of the inode beyond the first 128
    618 bytes when operating on inodes mapped via extents; potentially
    619 corrupting filesystems.
    620 
    621 Fix memory leaks in e2fsprogs, including a very large memory leak
    622 which can cause e2fsck to run out of memory when checking very large
    623 filesystems using extents.
    624 
    625 The logsave program will now filter out the ^A and ^B characters when
    626 writing to the console.
    627 
    628 Harden ext2fs_validate_entry() so that lsdel will not read beyond the
    629 end of the block even if the directory block is corrupted.
    630 
    631 Fix debugfs from core dumping if the logdump command fails to open the
    632 output file.
    633 
    634 Enhance badblocks to print the currently tested block number when
    635 interrupted with ^C.
    636 
    637 Fix lsattr to exit with a non-zero status when it encounters errors.
    638 (Addresses RedHat Bugzilla #489841)
    639 
    640 Fix e2fsprogs to use the same encoding for rec_len in 64k (and larger)
    641 filesystems as the kernel when encoding rec_len >= 64k.  For 64k
    642 filesystems (currently all that is supported by e2fsprogs, this is
    643 only a minor corner case).
    644 
    645 Resize2fs will now update the journal backup fileds in the sup0erblock
    646 if the journal is moved; this avoids an unnecessary full fsck after
    647 resizing the filesystem.  (Addresses RedHat Bugzilla: #505339)
    648     
    649 Fix libext2fs to properly initialize i_extra_size when creating the
    650 journal and resize inodes.
    651 
    652 Change badblocks to allow block sizes larger than 4k.
    653 
    654 Fix filefrag progam so it correctly checks for errors from the fiemap ioctl.
    655 
    656 Update Chinese and Czech translation from the Translation Project.
    657 
    658 Clean up various man pages.  (Addresses Debian Bug #531385 and #523063)
    659 
    660 
    661 Programmer's Notes
    662 ------------------
    663 
    664 Add --disable-libuuid option to configure which uses an in-system
    665 installed version of libuuid; the private version is enabled by
    666 default.
    667 
    668 Add --valgrind-leakcheck option to the test_script program which runs
    669 valgrind with the appropriate options to find memory leaks.
    670 
    671 
    672 E2fsprogs 1.41.6 (May 30, 2009)
    673 ===============================
    674 
    675 Fix a critical regression in e2fsck introduced version 1.41.5 which
    676 can undo updates to the block group descriptors after a journal replay.
    677 
    678 If e2fsck receives an I/O error while replaying the journal, prompt
    679 the user whether they want to ignore the error or not; if e2fsck is
    680 run in preen mode, force fsck to abort the preen pass.
    681 
    682 Fix a bug which would cause e2fsck to core dump if the filesystem
    683 contains a corrupt extent header, and the user declines to clear the
    684 inode.  (Addresses Sourceforge Bug: #2791794)
    685     
    686 Fix e2fsck to restart only once in the case of multiple block groups
    687 which inodes in use that are in the uninitialized part of the block
    688 group's inode table.
    689 
    690 To reduce user confusion, if the /etc/mtab file is missing
    691 ext2fs_check_mount_point and ext2fs_check_if_mounted will return a
    692 new, explicit error code to indicate this case.  This will cause
    693 e2fsck to give a clearer error message when the user is using buggy
    694 rescue CD's that don't properly set up /etc/mtab.  (Addresses Debian
    695 Bug: #527859)
    696     
    697 Fix e2fsck so that if the primary group descriptors are corrupted, but
    698 the backup superblock is entirely invalid, to go back to using (and
    699 fixing) the priary group descriptors instead of completely giving up
    700 on the filesystem.  (Addresses Debian Bug: #516820)
    701     
    702 Change e2fsck to not abort a preen pass if an inode is found to have
    703 i_file_acl_hi non-zero.  Ext3 filesystems don't care, and newer
    704 kernels (post 2.6.29) will ignore this field.  So let's fix it
    705 automatically during the preen pass instead of forcing the user to fix
    706 this up manually.  (Addresses Debian Bug: #526524)
    707     
    708 Add resource tracking for e2fsck passes 1b through 1d.
    709 
    710 Speed up e2fsck by eliminating unnecessary journal checks if the
    711 filesystem is already mounted and doesn't need recovery (since the
    712 kernel would have run the journal when the filesystem was mounted.)
    713 Also speed up e2fsck by avoiding unnecessary block group descriptor
    714 updates in ext2fs_close().
    715 
    716 Add support to chattr to migrate inodes from using direct/indirect
    717 blocks to extents.
    718 
    719 Avoid corrupting the filesystem if there is an attempt to shrink a
    720 filesystem using resize2fs smaller than posible by making
    721 ext2fs_set_bmap() more careful not to delete the old block until the
    722 new block can be inserted.  In addition, fix a bug in how the minimum
    723 size of the filesystem (plus a safety margin) is calculated, and
    724 modify resize2fs to refuse to shrink the filesystem below that minimum
    725 size without the force flag.
    726 
    727 Teach blkid to try to figure out DM device names using take advantage
    728 of information in sysfs when running on kernels (2.6.29 and later)
    729 which provide this information in /sys/block/dm-<N>/dm/name; this is
    730 much faster than scanning for the devncie number in /dev/mapper.
    731 
    732 Fix blkid to prefer /dev/mapper/<name> device names instad of the
    733 private /dev/dm-X names.
    734 
    735 Add an -a option to debugfs's close_filesys command which writes any
    736 changes to the superblock or block group descriptors to all of the
    737 backup superblock locations.
    738     
    739 Add support to the filefrag program to use the FIEMAP ioctl.
    740 
    741 Update Chinese translation from the Translation Project.
    742 
    743 Clean up various man pages.  (Addresses Red Hat Bugzilla: #502971 and
    744 Launchpad Bug: #381854)
    745 
    746 Fixed various Debian packaging issues --- see debian/changelog for
    747 details.  (Addresses Debian Bug #506064)
    748 
    749 
    750 Programmer's Notes
    751 ------------------
    752 
    753 Add test code to make sure e2fsck's problem.c doesn't have two problem
    754 codes assigned to duplicate values.
    755 
    756 Avoid using a hard-coded path for /bin/rm in block's test_probe.in.
    757 (Addresses Sourceforge Bug: #2780205)
    758 
    759 Clean up e2fsck by removing #ifdef RESOURCE_TRACK by adding an empty
    760 function declaration for init_resource_track() and
    761 print_resource_track() when RESOURCE_TRACK is not defined.
    762 
    763 The test code which is used to build the tst_csum progam has been
    764 moved from from tst_csum.c into csum.c under an #ifdef DEBUG to to
    765 avoid compile problems caused by not having a prototype for
    766 ext2fs_group_desc_csum().  (Addresses Sourceforge Bug #2484331)
    767 
    768 Update the config.guess and config.sub file to the latest from the
    769 FSF, to allow e2fsprogs to build on the avr32 platform.  (Addresses
    770 Debian Bug: #528330)
    771 
    772 Add a new function, ext2fs_extent_open2(), which behaves like
    773 pext2fs_extent_open(), but uses the user-supplied inode structure
    774 when opening an extent instead of reading the inode from disk.
    775 
    776 
    777 E2fsprogs 1.41.5 (April 23, 2009)
    778 =================================
    779 
    780 Fix a number of filesystem corruption bugs in resize2fs when growing
    781 or shrinking ext4 filesystems off-line (i.e., when the ext4 filesystem
    782 is not mounted).
    783 
    784 Debugfs can now set i_file_acl_high via the set_inodes_field command,
    785 and print a 64-bit file acl.  This is useful for debugging filesystem
    786 corruptions where the high bits of i_file_acl_high are set.  E2fsck
    787 will detect and fix non-zero i_file_acl_high on 32-bit filesystems
    788 since some Linux kernel versions pay attention to this field even when
    789 they shouldn't.
    790 
    791 Speed up e2fsck when checking clean filesystems by avoiding
    792 unnecessary block reads, and coalescing the block group descriptor
    793 blocks so they are read using a single read operation.
    794 
    795 The libuuid library will now close all file descriptors before running
    796 uuidd.  This avoids problems when the calling program has open sockets
    797 which then never get closed because uuidd is a long-running helper
    798 daeomn.  (Addresses Launchpad bug: #305057)
    799 
    800 In order to avoid unnecessary full filesystem checks by e2fsck after
    801 an on-line resize, e2fsck will ignore the NEEDS_RECOVERY flag set on
    802 the backup superblocks.  (Addresses Red Hat Bugzilla: #471925)
    803 
    804 Mke2fs will avoid trying to create the journal when run in
    805 superblock-only mode (mke2fs -S), since the left-over journal in the
    806 inode table will cause mke2fs to fail.
    807 
    808 Fix a bug in libext2fs functions that check to see if a particular
    809 device or filesystem image is mounted, which would cause these
    810 functions to report that a file identical to the (relative) pathname
    811 used by a pseudo-filesystem was mounted when in fact it was not.
    812 
    813 Update Czech translation from the Translation Project.
    814 
    815 Add Chinese (simplified) translation from the Translation Project.
    816 
    817 Fix support for external journals (which was broken in e2fsprogs
    818 1.41.4).
    819 
    820 Fix a regression in debugfs where the "stat" command when no
    821 filesystem was open would cause debugfs to crash with a segmentation
    822 violation.
    823 
    824 Starting in the 2.6.29 linux kernel, the ext4 filesystem driver can be
    825 used to support filesystems without a journal.  Update the blkid
    826 library so it understands this.
    827 
    828 The blkid library will remove an entry from the blkid cache
    829 representing the entire disk if partitions are found, since presuambly
    830 the device previously had no partition table, but has now transitioned
    831 to using a partition table.
    832 
    833 Add a check to mke2fs and tune2fs that the argument to the -m option
    834 (which specifies the reserved ratio) must be greater than zero.
    835 (Addresses Debian Bug: #517015)
    836 
    837 Add support for tracking the number kilobytes written to the
    838 filesystem via the superblock field s_kbytes_written.  It will be
    839 updated by the kernel as well as by e2fsprogs programs which write to
    840 the filesystem.  This is useful for tracking the wear to filesystems
    841 on Solid Sstate Drives.
    842 
    843 Fix compatibility issue in the libext2fs info file and makeinfo
    844 version 4.12.  (Addresses Red Hat Bugzilla: #481620)
    845 
    846 Update/clarify man pages.  (Addresses Debian Bug: #515693, #365619)
    847 
    848 Fixed various Debian packaging issues --- see debian/changelog for
    849 details. (Addresses Debian Bug: #506279)
    850 
    851 Programmer's Notes
    852 ------------------
    853 
    854 Fix Hurd compilation problem in e2fsck and tune2fs (Addresses Debian
    855 Bug: #521602)
    856 
    857 Fix various gcc compilation warnings and other programming cleanups.
    858 (Addresses Red Hat Bugzilla: #486997)
    859 
    860 Add support for building the blkid command statically.
    861 
    862 Add support for disabling the built-in blkid library in favor of a
    863 system-installed blkid implementation via the configure option
    864 --disable-libblkid.
    865 
    866 
    867 E2fsprogs 1.41.4 (January 27, 2009)
    868 ===================================
    869 
    870 Fixed a bug which could sometimes cause blkid to return an exit value
    871 of zero for a non-existent device (Addresses Debian Bug: #502541)
    872 
    873 Blkid will now recognize ext3 filesystems that have the test_fs flag
    874 set as ext3 filesystems.
    875 
    876 The blkid library will now recognize btrfs filesystems and swap
    877 devices currently used by user-level software suspend.
    878 
    879 Tune2fs now updates the block group checksums when changing the UUID
    880 to avoid causing e2fsck to complain vociferously at the next reboot.
    881 
    882 Tune2fs's inode size resizing algorithms have been fixed so it is not
    883 vastly inefficient for moderate-to-large filesystems, due to some
    884 O(n**2) and O(n*m) algorithms that didn't scale well at all.
    885 
    886 Fix tune2fs's inode resizing algorithm so it will not corrupt
    887 filesystems laid out for RAID filesystems; in addition, tune2fs will
    888 refuse to change the inode size for filesystems that have the flex_bg
    889 feature enabled.  (This is a limitation in the current implementation
    890 of tune2fs -I.)
    891 
    892 E2fsprogs 1.41 broke debugfs's logdump command for normal ext3/4
    893 filesystems with 32-bit block numbers, when the headers for 64-bit
    894 block numbers was added.  This regression has been fixed.
    895 
    896 Debugfs's ncheck command has been fixed to avoid printing garbage
    897 characters at the end of file names.
    898 
    899 Fix resize2fs for ext4 filesystems.  Some blocks that that need moving
    900 when shrinking filesystems with uninit_bg feature would not be moved.
    901 In addition, blocks and inode table blocks were not being correctly
    902 freed when shrinking filesystems with the flex_bg feable, which caused
    903 resize2fs -M to fail.  Finally, when blocks are moved, make sure the
    904 uninitialized flag in extents is preserved.
    905 
    906 Fix bug which caused dumpe2fs to abort with an error if run on a
    907 filesystem that contained an external journal.
    908 
    909 Some distributions used "mke3fs" as an alias for "mkfs.ext3"; check
    910 for this in argv[0] to provide better legacy support for these
    911 distributions.  This is a practice that should NOT be continued,
    912 however.
    913 
    914 Mke2fs now has a new option -U, which allows the user to specify the
    915 UUID that should be used for the new filesystem.
    916 
    917 Mke2fs will treat devices that are exactly 16TB as if they were 16TB
    918 minus one block.  This allows users who have read that ext3 supports
    919 up to 16TB filesystems and who create a 16TB LVM to not get confused,
    920 since the true limit is really 16TB minus one block.
    921 
    922 E2fsck will no longer abort an fsck run if block group has an errant
    923 INODE_UNINIT flag.
    924 
    925 E2fsck now distinguishes between fragmented directories and fragmented
    926 files in verbose mode statistics and in the fragcheck report.
    927 
    928 Fix a bug in e2fsck which casued it double count non-contiguous
    929 extent-based inodes.
    930 
    931 E2fsck will leave some slack space when repacking directories to allow
    932 room for a few directory entries to be added without causing leaf
    933 nodes to be split right away.
    934 
    935 Fix a bug which caused e2fsck to crash when it comes across a
    936 corrupted interior node in an extent tree with the error message:
    937 "Error1: Corrupt extent header on inode XXXXXX"
    938 
    939 E2fsck problem descriptions involving the journal are no longer
    940 referred to as "ext3" problems, since ext4 filesystems also have
    941 journals.
    942 
    943 Fix a long-standing bug in e2fsck which would cause it to crash when
    944 replying journals for filesystems with block sizes greater than 8k.
    945 
    946 Update Catalan translation from the Translation Project.
    947 
    948 Fixed various Debian packaging issues --- see debian/changelog for
    949 details. (Addresses Debian Bugs: #503057, #502323, #511207)
    950 
    951 Programmer's Notes
    952 ------------------
    953 
    954 Fix build of e2fsck.profiled, and add support for building profiled
    955 binaries in the misc directory if configured with --enable-profile.
    956 
    957 The ext2fs_open() function now performs more sanity checks on the
    958 superblock to avoid potential divide by zero errors by other parts of
    959 library.
    960 
    961 The ext2fs_read_inode_full() function now has a safety check to avoid
    962 a segmentation fault on corrupted filesystems.
    963 
    964 The ext2fs_new_inode() function now has a sanity check so that if the
    965 s_first_inode field in the superblock is insane, it will return
    966 EXT2_ET_INODE_ALLOC_FAIL instead of returning an invalid inode number.
    967 
    968 To avoid segmentation faults, ext2fs_block_alloc_stats() and
    969 ext2fs_inode_alloc_stats() now validates the passed inode or block
    970 number to avoid overrunning an array boundary.
    971 
    972 Various signed/unsigned errors for variables containing block numbers
    973 have been fixed.
    974 
    975 Accomodations for gcc's stupidity in not realizing that constant
    976 strings that do not contain a '%' character are safe to use in format
    977 strings have been made so that distributions that want to compile
    978 e2fsprogs with -Werror=format-security have an easier time doing so.
    979 
    980 Added a new 64-bit getsize interface, ext2fs_get_device_size2().
    981 
    982 Added the utility make-sparse.c to the contrib directory.
    983 
    984 The ext2fs_block_iterate2() function now reflects errors from
    985 ext2fs_extent_set_bmap() to the caller, if the callback tries to
    986 change a block on an extent-based file, and ext2fs_extent_set_bmap()
    987 fails for some reason (for example, there isn't enough disk space to
    988 split a node and expand the extent tree.
    989 
    990 The ext2fs_block_iterate2() function will preserve the uninit flag in
    991 extents when the callback function modifies a block in an extent-based
    992 file.
    993 
    994 E2fsck will now flag filesystems that have an insane s_first_ino field
    995 in their superblock, and attempt to use a backup superblock to repair
    996 the filesystem.
    997 
    998 
    999 E2fsprogs 1.41.3 (October 12, 2008)
   1000 ===================================
   1001 
   1002 E2fsck has been fixed so it prints the correct inode number for
   1003 uinit_bg related problems.
   1004 
   1005 E2fsck will now offer to clear the test_fs flag if the ext4 filesystem
   1006 is available on linux.  This can be disabled via a configuration
   1007 option in /etc/e2fsck.conf.
   1008 
   1009 Fix a file descriptor leak in libblkid when checking to see if an ext4
   1010 or ext4dev module exists.
   1011 
   1012 Fix a bug in e2fsck where in preen mode, if there are disk I/O errors
   1013 while trying to close a filesystem can lead to infinite loops.
   1014 (Addresses Red Hat Bugzilla #465679)
   1015     
   1016 Fix a bug in resize2fs where passing in a bogus new size of 0 blocks
   1017 will cause resize2fs to drop into an infinite loop.  (Addresses Red
   1018 Hat Bugzilla: #465984)
   1019     
   1020 Add a check in the Unix I/O functions in libext2fs so that when a
   1021 device is opened read/write, return an error if the device is
   1022 read-only using the BLKROGET ioctl.
   1023 
   1024 Fix debugfs's ncheck command so that it prints all of the names of
   1025 hardlinks in the same directory.
   1026 
   1027 Fix a bug in libblkid so it correctly detects whether the ext4 and
   1028 ext4dev filesystems are available, so that the ext4dev->ext4
   1029 fallback code works correctly.
   1030 
   1031 Programmer's Notes
   1032 ------------------
   1033 
   1034 Fix a parallel build problem by making sure util/subst is built before
   1035 trying to build the lib/et directory.  (Addresses Sourceforge Bug:
   1036 #2143281)
   1037 
   1038 Updated "make depend" information for crc16.o
   1039     
   1040 
   1041 E2fsprogs 1.41.2 (October 2, 2008)
   1042 ==================================
   1043 
   1044 Fix e2fsck's automatic blocksize detection.  This fixes a regression
   1045 from e2fsprogs 1.40.7 which caused e2fsck to fail if the user
   1046 specifies a block number using the -b option if the blocksize option
   1047 isn't also specified using -B.  Unfortunately, users very commonly
   1048 invoke e2fsck using "e2fsck -b 32768 /dev/hdXXX" to use the backup
   1049 superblock; in fack e2fsck will often suggest this kind of command
   1050 line.  Oops.
   1051 
   1052 Enhance the debugfs's "ncheck" command so it will print all of the
   1053 pathnames for the specified inodes.  (Previously, in some cases ncheck
   1054 might not print a pathname for an inode at all if some of the other
   1055 inodes had multiple hard links.)
   1056 
   1057 Enhance debugfs's "hash" command so the hash seed can be specified via
   1058 a command-line option.  In addition, allow the hash algorithm to be
   1059 specified by name instead of just by number.
   1060 
   1061 Fix e2fsck so that we don't accidentally print the translation file's
   1062 header when asking the user a custom question so there is no prompt
   1063 defined for a particular problem record.  For example, the question
   1064 "Run journal anyway" will get the PO header tacked on because e2fsck
   1065 erroneously passed the null string to _().  (Addresses Launchpad Bug:
   1066 #246892)
   1067 
   1068 Enhance badblocks so that it can test a normal file which is greater
   1069 than 2GB.
   1070 
   1071 Enhance the badblocks command so that it displays the time and
   1072 percentage complete when in verbose mode.  (Addresses Debian Bug:
   1073 #429739)
   1074 
   1075 Fix a potential memory leak in a error handling path in debugfs's
   1076 ncheck function.
   1077 
   1078 Fix a potential memory corruption problem if a memory allocation fails
   1079 in resize2fs.
   1080 
   1081 Fix the usage message for debugfs's logdump command to be consistent
   1082 with its man manpage.
   1083 
   1084 Update Polish, French, Vietnamese, Dutch, Indonesian, German, Czech,
   1085 and Sweedish translation from the Translation Project.
   1086 
   1087 Add documentation for the file I/O functions to the libext2fs.texinfo
   1088 file.  (Addresses Debian Bug: #484877)
   1089     
   1090 Update and clarified various man pages.  (Addresses Launchpad Bug
   1091 #275272; Addresses Debian Bugs: #498100, #498101, #498102, #498103)
   1092 
   1093 Fixed various Debian packaging issues --- see debian/changelog for
   1094 details. (Addresses Debian Bug: #497619)
   1095 
   1096 Programmer's Notes
   1097 ------------------
   1098 
   1099 Fix a potential file descriptor leack in libcom_err by setting the
   1100 close-on-exec flag for a fd used for debugging.  (Addresses Red Hat
   1101 Bugzilla #464689)
   1102 
   1103 Fix a potential race in libcom_err by using sem_post/sem_init.  SuSE
   1104 has been carrying a patch for a long time to prevent a largely
   1105 theoretical race condition if a multi-threaded application adds and
   1106 removes error tables in multiple threads.  Unfortunately SuSE's
   1107 approach breaks compatibility by forcing applications to link and
   1108 compile with the -pthread option; using pthread mutexes has
   1109 historically been problematic.  We fix this by using sem_post/sem_init
   1110 instead.
   1111 
   1112 Fix e2fsprogs-libs build failure due to 'subs' target.  (Addresses
   1113 Sourceforge Bug: #2087502)
   1114 
   1115 Avoid linking e2initrd_helper, debugfs, blkid, and fsck with unneeded
   1116 libraries when using ELF shared libraries.
   1117 
   1118 Fix ELF shared library when building on systems that don't already
   1119 have the e2fsprogs shared libraries already installed.  (Addresses
   1120 Sourceforge Bug: #2088537)
   1121 
   1122 Fix the pkg-config files so they work correctly when linking with
   1123 static libraries and fix the include directory so programs don't have
   1124 to use #include <ext2fs/ext2fs.h>, but can use #include <ext2fs.h>
   1125 instead.  (Addresses Sourceforge Bug: #2089537)
   1126     
   1127 Make sure ext2fs_swab64() is compiled for all platforms, and not just
   1128 for x86.  (Addresses Debian Bug: #497515)
   1129     
   1130 Remove the unused ext2fs_find_{first,ext}_bit_set() functions for all
   1131 non-x86 platforms.  (They had been removed for x86 earlier.)
   1132 
   1133 Fix diet libc compilation support, which had bitrotted due to lack of
   1134 TLC.  Fixing this improves general portability.
   1135 
   1136 When installing the link library when using ELF shared libraries,
   1137 avoid using absolute pathnames if the link library and the shared
   1138 library are installed in the same directory.  (Addresses Sourceforge
   1139 Bug: #1782913)
   1140 
   1141 Fix gen-tarball so it will work even if the top-level directory has
   1142 been renamed to something other than "e2fsprogs".  Also make
   1143 gen-tarball print the size of the resulting tar.gz file.
   1144 
   1145 
   1146 E2fsprogs 1.41.1 (September 1, 2008)
   1147 ====================================
   1148 
   1149 Many people are forgetting to update their mke2fs.conf file, and this
   1150 causes ext3, ext4, and ext4dev filesystems won't get created with the
   1151 proper features enabled.  We address this in two ways.  First, mke2fs
   1152 will issue a warning if there is not definition for an ext3, ext4, or
   1153 ext4dev filesystem and the user is trying to create such a filesystem
   1154 type.  Secondly, when installing from a source build, "make install"
   1155 will provide basic configuration file handling for /etc/mke2fs.conf.
   1156 If it exists, and does not mention ext4dev, it will be moved aside to
   1157 /etc/mke2fs.conf.e2fpsrogs-old and the new /etc/mke2fs.conf file will
   1158 be installed.  If the existing /etc/mke2fs.conf file does mention
   1159 ext4dev, then "make install" will install official mke2fs.conf file as
   1160 /etc/mke2fs.conf.e2fsprogs-new and issue a message to the user that
   1161 they should look to see if any changes need to be merged.
   1162 
   1163 The mke2fs program will now create the journal in the middle of the
   1164 filesystem, since this minimizes seek times on average for fsync-heavy
   1165 workloads.  In addition, mke2fs will now create journals using extents
   1166 for filesystems that support them.  This results in a more efficient
   1167 encoding for the journal since it eliminates the need for using
   1168 indirect blocks.
   1169 
   1170 The mke2fs program will avoid allocating an extra block to the
   1171 journal.  (Addresses Sourceforge Bug: #1483791)
   1172 
   1173 Mke2fs will correctly enforce the prohibition against features
   1174 (specifically read-only features) in revision 0 filesystems.  (Thanks
   1175 to Benno Schulenberg for noticing this problem.)
   1176 
   1177 Mke2fs previously would occasionaly create some slightly non-optimally
   1178 placed inode tables; this bug has been fixed.
   1179 
   1180 The mke2fs and tune2fs programs now print the correct usage message
   1181 describing the maximum journal size.  (Addresses Debian Bug: #491620)
   1182 
   1183 Add support for setting the default hash algorithm used in b-tree
   1184 directories in tune2fs (from a command-line option) or mke2fs (via
   1185 mke2fs.conf).  In addition, change the default hash algorithm to
   1186 half_md4, since it is faster and better.
   1187 
   1188 The blkid library will now recognize MacOS hfsx filesystems, and
   1189 correctly extract the label and uuid for hfs, hfsx, and hfsplus
   1190 filesystems.  (Addresses Sourceforge Feature Requests: #2060292)
   1191 
   1192 The blkid library has improved detection of JFS and HPFS filesystems.
   1193 (Addresses Launchpad Bug: #255255)
   1194 
   1195 The blkid library is now much more efficiently handling devicemapper
   1196 devices, mainly by no longer using the devicemapper library.  This can
   1197 speed up access for systems with a large number of device mapper
   1198 devices.
   1199 
   1200 Blkid had a number of cache validation bugs in libblkid that have been
   1201 fixed.   (Addresses Debian Bug: #493216)
   1202 
   1203 Resize2fs will now properly close out the "updating inode references"
   1204 progress bar so there is a newline printed before printing the final
   1205 "resize is successful" message.
   1206 
   1207 Resize2fs will now correctly handle filesystems with extents and/o
   1208 uninitialized block groups correctly when file/directory blocks need
   1209 to relocated (i.e., when shrinking a filesystem or if the resize_inode
   1210 is not present).  To support this, the ext2fs library now supports
   1211 initializing inode and block bitmaps that are not yet initialized when
   1212 allocating them using ext2fs_new_block() and ext2fs_new_inode().  In
   1213 addition, e2fs_block_iterate2() can now support changing the location
   1214 of interior nodes of an extent tree, and ext2fs_extent_set_bmap() has
   1215 been optimized to avoid creating unnecessary new extents when updating
   1216 the location of blocks in the extent tree.  This will also help out
   1217 e2fsck's recovery of obscurely corrupted filesystems with extents,
   1218 when blocks are claimed by multiple inodes.
   1219 
   1220 Add support for on-line resizing ext4 filesystem with the flex_bg
   1221 filesystem feature.  The method for doing so is not optimal, but to do
   1222 a better job will require kernel support.
   1223 
   1224 E2fsprogs 1.41.0 intrduced a bug in libext2fs which casued e2image and
   1225 debugfs programs to not be able to read e2image files; the signed
   1226 vs. unsigned bug in the code which read bitmaps from the e2image has
   1227 been fixed.   (Addresses Debian Bug: #495830)
   1228 
   1229 Resize2fs is now correctly managing the directory in-use counts when
   1230 shrinking filesystems and directory inodes needed to be moved from one
   1231 block group to another.  This bug has been around since e2fsprogs
   1232 1.26, and is largely harmless, but does cause a filesystem corruption
   1233 which will be flagged by e2fsck after the filesystem has been shrunk.
   1234  
   1235 E2fsck will no longer issue spurious complaints about the inode size
   1236 caused by very large extent-based files, and by blocks reallocated
   1237 using fallocate() with the FALLOC_FL_KEEP_SIZE option.  (Addresses
   1238 Kernel Bugzilla: #11341)
   1239 
   1240 Mke2fs will now set the creation timestamp on the lost+found directory
   1241 and the root directory.  (More generally, all new inodes created using
   1242 the ext2fs library will correctly set the creation timestamp.)
   1243 
   1244 E2fsck now correctly calculates ind/dind/tind statistics in the
   1245 presence of extent-based files.  In addition, "e2fsck -v" will report
   1246 statistics of the depth of extent trees in the filesystem.  E2fsck can
   1247 also give an inode fragmentation report using "e2fsck -E fragcheck"
   1248 which can be useful when debugging the kernel block allocation
   1249 routines.
   1250 
   1251 Fix support for empty directory blocks in ext4 filesystems with 64k
   1252 blocksize filesystems.
   1253 
   1254 E2fsck will now print the depth of corrupt htree directories.
   1255 
   1256 Debugfs's htree command now correctly understands extent-based
   1257 directories.  It will also print out the minor hash as well as the
   1258 major hash.
   1259 
   1260 Debugfs has a new command which will print the supported features of
   1261 e2fsprogs, to enable scripts to know whether the installed version of
   1262 e2fsprogs can support a specific feature.
   1263 
   1264 Debugfs will now write files using extents for filesystems that
   1265 support them.
   1266 
   1267 The error message printed by "tune2fs -I" if the inode size was too
   1268 small was rather confusing, so it has been improved.  Also, we won't
   1269 try to create an undo log until we know that command-line-specified
   1270 parameters such as "tune2fs -I <inode size>" are valid.
   1271 
   1272 Given some filesystems found "in the wild" that had non-zero block
   1273 group checksums even though the uninit_bg/gdt_sum feature was not
   1274 enabled, e2fsck would issue spurious error messages.  Teach
   1275 ext2fs_group_desc_csum_verify() to ignore the block group checksum
   1276 entirely if the feature flag is not set.  (Addresses Debian Bug:
   1277 #490637)
   1278 
   1279 The blkid program will now print out a user-friendly listing of all of
   1280 the block devices in the system and what they contain when given the
   1281 -L option.  (Addresses Debian Bug: #490527)
   1282 
   1283 The filefrag program now has a more accurate calculation for the
   1284 number of ideal extents.  (Addresses Debian Bug: #458306)
   1285 
   1286 The test I/O manager is now enabled by default, but its overhead is
   1287 only incurred when it would be enabled via the TEST_IO_FLAGS or
   1288 TEST_IO_BLOCK environment variables.
   1289 
   1290 Typographical errors in various program strings and usage messages
   1291 have been fixed; most of these were pointed out by the e2fsprogs
   1292 message catalog translators.  (Thanks, translators!)
   1293 
   1294 Update and clarified various man pages, as well as some typographical
   1295 errors in the libext2fs texinfo file.
   1296 
   1297 Fixed various Debian packaging issues --- see debian/changelog for
   1298 details.
   1299 
   1300 Add Indonesian and update French, Polish, Dutch, German, Sweedish,
   1301 Czech, and Vietnamese Translations.  (Addresses Debian Bugs: #313697,
   1302 #401092)
   1303 
   1304 Programmer's Notes
   1305 ------------------
   1306 
   1307 Fix portability problem with the badblocks group; for systems that
   1308 don't have nanosleep(), try using usleep() instead.
   1309 
   1310 The "make check" target in the e2fsck directory now sets
   1311 LD_LIBRARY_PATH before running the various e2fsck internal library
   1312 regression tests.
   1313 
   1314 The crc32 regression test in the e2fsck library is now portable to
   1315 greater varienty of environments, including big-endian systems and
   1316 when cross-building e2fsprogs for embedded systems.  (Addresses
   1317 Sourceforge Bug: #2019287)
   1318 
   1319 The ext2fs_extent_set_bmap() had some bugs when setting the first
   1320 block in a file, or when replacing a single block extent.  Those cases
   1321 fortunately were came up relatively rarely when e2fsck was checking
   1322 files, but caused some problems when resize2fs was shrinking
   1323 extent-based files.
   1324 
   1325 Fix a potential core-dumping bug in libe2p's iterate_on_dir()
   1326 function.
   1327 
   1328 Various ext2fs library functions --- ext2fs_block_iterate2(),
   1329 ext2fs_initialize() and ext2fs_extent_open() --- now correctly free
   1330 allocated memory to avoid memory leaks in all of their error return
   1331 paths.
   1332 
   1333 Ext2ed was failing to build because masix support had been removed in
   1334 the rest of e2fsprogs, so ext2ed no longer has masix support, either.
   1335 
   1336 The configure script now respects the LDFLAGS environment variable if
   1337 it is set when configure is called.  (Addresses Sourceforge Feature
   1338 Request: #1937287)
   1339 
   1340 Libuuid is now more portable to the Windows platform.  (Addresses
   1341 Sourceforge Feature Request: #1937287)
   1342 
   1343 The configure script now uses AC_MSG_{RESULT,WARN,ERROR} instead of
   1344 bare echo commands so that configure flags such as --quiet work
   1345 correctly.  (Addresses Sourceforge Patches: #2058794)
   1346 
   1347 A few uses of sprintf have been removed from the ext2fs library to
   1348 make life easier for bootloaders with a limited libc environment.
   1349 (Addresses Sourceforge Bug: #2049120)
   1350 
   1351 The ext2fs_read_inode() checks the validity of the inode number passed
   1352 to it earlier, to avoid doing some needless work when it would fail
   1353 anyway.
   1354 
   1355 The ext2fs_open() checks the validity of the blocksize parameter
   1356 passed to it earlier, to avoid doing some needless work when it would
   1357 fail anyway.
   1358 
   1359 Disable a very annoying automatic "%.sh -> %" GNU make rule in the
   1360 top-level Makefile.  That automatic rule is used to better support
   1361 SCCS, but it caused problems for a particular niche distribution which
   1362 likes to use configure.sh files to store the configure options used to
   1363 build a package.  Unfortuntaely GNU make will use the configure.sh to
   1364 replace the configure script, resulting in a self-inflicted fork bomb
   1365 leading to an out-of-memory crash.
   1366 
   1367 To support old GNU C compilers don't use C99/C++ comments, but only
   1368 K&R style comments, and don't try to use __builtin_expect if __GNUC__
   1369 is less than 3.  (__builtin_expect is only supported for gcc versions
   1370 2.96 and up, and it's tricky to check for gcc 2.95 vs gcc 2.96; since
   1371 this is an optimization, we only try to use __builtin_expect for gcc 3
   1372 and up.)
   1373 
   1374 In e2fsck's crc routines, make sure we use WORDS_BIGENDIAN instead of
   1375 __LITTLE_ENDIAN, which are only defined by glibc's header files and
   1376 hence isn't portable.
   1377 
   1378 For the convenience for some distributions that need a static tune2fs,
   1379 the Makefile for misc/ now has a tune2fs.static target.
   1380 
   1381 The ext2fs_block_iterate2() function now supports BLOCK_FLAG_APPEND
   1382 for extent-based files
   1383 
   1384 The ext2fs_bmap() function now supports BMAP_ALLOC for extent-based
   1385 files.
   1386 
   1387 All source files no longer have any trailing white space.
   1388 
   1389 The io_channel_read_blk64() and io_channel_write_blk64() functions are
   1390 now functions instead of C preprocessor macros to provide better
   1391 forward compatibility.
   1392 
   1393 The e2fpsrogs translation template now expands the @x abbrevation.
   1394 
   1395 Various namespace leackages in libblkid, libe2p, and libext2fs have
   1396 been fixed.
   1397 
   1398 Fix a parallel build problem in e2fsprogs.
   1399 
   1400 E2fsprogs is now more portable to Solaris.
   1401   * blkid no longer assumes that the TIOCGSIZE and TIOCGWINSZ ioctl's
   1402     are always present.
   1403   * Scripts do not assume that /bin/true is always in /bin
   1404   * Don't use __FUNCTION__ since Solaris's C99 doesn't support it.
   1405   * Flush stdio handles before calling setbuf(), since Solaris will
   1406     discard any pending output to the stream.
   1407   * Define _XOPEN_SOURCE to 600 since Solaris's header files are very
   1408     picky about which C compiler can beused for SUSv3 conformance.
   1409     Use of C99 is not compatible with SUSv2 (_XOPEN_SOURCE=500),
   1410     and C89 is not compatible with SUSv3 (_XOPEN_SOURCE=600).
   1411     Since we need some SUSv3 functions, consistently use SUSv3 so
   1412     that e2fsprogs will build on Solaris using c99.
   1413   * Solaris C99 does not support varargs C preprocessor macros
   1414   * Solaris header files pollute the C namespace if in/netinet.h
   1415     is included, which conflicts with e2fsprogs' use of the kmem_cache_t
   1416     typedef.
   1417   * Solaris ships with a pathetically ancient shell in /bin/sh so we
   1418     avoid the use of various more avanced shell constructs such as $().
   1419 
   1420 The "make rpm" command will now take some extra configure optiosn from
   1421 the build environment without needing to patch the source tree.
   1422 
   1423 The ext2fs_add_dir_block() function will now grow the dblist more
   1424 aggressively as an optimization to avoid copying the array too often.
   1425 
   1426 The e2fsck_write_bitmaps() will write the block and inode bitmaps
   1427 together instead of in two passes.
   1428 
   1429 
   1430 E2fsprogs 1.41 (July 10, 2008)
   1431 ==============================
   1432 
   1433 Add support for ext4 filesystem features, in particular extents,
   1434 uninit_bg, flex_bg, huge_file, and dir_nlink features.  Also add
   1435 support for checking journal checksums.  Debugfs will print new
   1436 superblock and inode fields that were defined for ext4.  For example,
   1437 the nanosecond and i_version fields of an inode, and the
   1438 s_min_extra_isize and s_wanted_extra_isize fields from the superblock.
   1439 Note: Resize2fs doesn't currently support the combination of flex_bg
   1440 and !resize_inode.  (Addresses Debian Bug: #388452, #425477)
   1441 
   1442 Tune2fs can support migrating a filesystem from using 128 byte inodes
   1443 to 256 byte inodes, so it can take advantage of the full features of
   1444 ext4.
   1445 
   1446 Add support for "undo" support.  E2fsck and mke2fs can optionally
   1447 record an undo log which can replayed by the program e2undo.
   1448 
   1449 E2fsck could damage a filesystem by trying to relocate inode tables
   1450 due to corrupted block group descriptors, where the attempted inode
   1451 table relocation would do far more harm than good.  E2fsck has been
   1452 fixed to detect this these sorts of corrupted block group descriptors
   1453 much earlier in e2fsck processing, so it can try to use the backup
   1454 superblock and block group descriptors first.  This should be a much
   1455 better strategy for recovering these types of corrupted filesystems.
   1456 (Addresses Sourceforge Bug: #1840291)
   1457 
   1458 E2fsck will display a more understandable message when the last check
   1459 field in the superblock is in the future.  (Addresses Debian Bug:
   1460 #446005).
   1461 
   1462 E2fsck now performs more extensive and careful checks of extended
   1463 attributes stored in the inode.
   1464 
   1465 Enhance mke2fs to print a more explanatory error message when
   1466 ext2fs_get_device_size() returns EFBIG.  (Addresses Debian Bug:
   1467 #488663)
   1468 
   1469 Fix mke2fs to use a default block size of 4k when formatting an
   1470 external journal device.  This is done by using a fixed filesystem
   1471 type list that consists only of the single filesystem type "journal"
   1472 when looking up configuration keys in /etc/mke2fs.conf.  (Addresses
   1473 Debian Bug: #488663)
   1474 
   1475 Speed up how mke2fs writes the journal data blocks by writing the disk
   1476 blocks in larger chunks.
   1477 
   1478 Fix blkid handling of stale devices.  Fix a bug which could cause a
   1479 core dump while garbage collecting the blkid cache, and assure that
   1480 blkid_find_dev_with_tag() never returns a non-existent device.  Also,
   1481 if a filesystem is found at a new /dev location, eliminate any
   1482 duplicate stale entries which can not be verified.
   1483 (Addresses Debian Bugs: #487758, #487783)
   1484     
   1485 Add more paranoid checks for LVM volumes and swap partitions in
   1486 blkid's probe function, to reduce the chances of false positives.
   1487 
   1488 The mke2fs program now has a much more sophisticated system for
   1489 controlling configuration parameters of a newly created filesystem
   1490 based on a split filesystem and usage type system.  The -t option to
   1491 mke2fs was a deprecated alias to -c; it now specifies a filesystem
   1492 type (ext2, ext3, ext4, etc.), while the -T option can now be a comma
   1493 separated usage list.  The filesystem type information and type
   1494 information is used to extract configuration parameters from the
   1495 /etc/mke2fs.conf file.
   1496 
   1497 The mke2fs program will no longer complain and request the -f option
   1498 when the user tries to create a filesystem with greater than 2**31
   1499 blocks.
   1500 
   1501 When creating a filesystem for the GNU Hurd use a fs-type of Hurd and
   1502 adjust the mke2fs.conf file so filesystems for the Hurd are created
   1503 with a blocksize of 4096 and inode size of 128, which is all it knows
   1504 how to handle.  (Addresses Debian Bug: #471977)
   1505     
   1506 Mke2fs will always make sure that lost+found always has at least 2
   1507 blocks, even for filesystems with very large blocksizes (i.e., 64kb).
   1508 
   1509 Resize2fs will now print the minimum needed filesystem size if given
   1510 the -P option, and will resize the filesystem to the smallest possible
   1511 size if given the -M option.
   1512 
   1513 Fix resize2fs to clean up the resize_inode if all of the reserved gdt
   1514 blocks are consumed during an off-line resize.
   1515 
   1516 The "ls" command in debugfs now supports the -p option, which causes
   1517 it to quote the filenames so that spaces or tabs in directory entries
   1518 are easily visible.  (Addresses Red Hat Bugzilla: #149480; Addresses
   1519 Sourceforge Feature Request: #1201667)
   1520 
   1521 Fix a potential off-by-one buffer oveflow in the fs_device_name in an
   1522 e2image file.
   1523 
   1524 The chattr program will return a non-zero exit code in case of
   1525 failures, and error messages can be suppressed with the -f option.
   1526 (Addresses Red Hat Bugzilla: #180596)
   1527 
   1528 Fix a bug in badblocks which caused it to overrun an array and likely
   1529 crash if more than 8 test patterns are specified using the -t option.
   1530 (Addresses Debian Bug: #487298)
   1531     
   1532 Add support to badblocks to limit how quickly it reads from the disk
   1533 drive (so it can be used for background scrubbing), and so it will
   1534 abort after finding a given number of errors.
   1535 
   1536 Remove support for the legacy big-endian filesystem format which only
   1537 existed on extremely long-dead PowerPC kernels almost a decade ago.
   1538 
   1539 Remove MASIX support from e2fsprogs.
   1540 
   1541 Add I/O statistics reporting to e2fsck.
   1542 
   1543 Update Vietnamese, Polish, French, Spanish, German, Catalan, Dutch,
   1544 Czech translations.
   1545 
   1546 Fixed various Debian packaging issues --- see debian/changelog for
   1547 details.  (Addresses Debian Bugs: #487443, #487675, #490003)
   1548 
   1549 Fixed spelling mistakes, typos, and otherwise clarified man pages.
   1550 (Addresses Debian Bugs: #393313, #487849, #440983, #440981)
   1551 
   1552 Programmer's Notes
   1553 ------------------
   1554 
   1555 Factor out bitmap code in preparation for adding 64-bit new-style
   1556 bitmaps.
   1557 
   1558 Fix gcc -Wall warnings
   1559 
   1560 Fix the pkg-config files so that private librares are specified in
   1561 "Libs.private:".
   1562 
   1563 Fix the libext2fs.texinfo manual so it builds with modern versions of
   1564 texinfo.
   1565 
   1566 Silence the makefile from showing the awk command used to build the
   1567 
   1568 Clean up the badblocks group so to make it more portable and robust.
   1569 
   1570 Avoid using predictable filenames in /tmp in blkid's regression test
   1571 suite.  Also remove bashism's in the regression test script.
   1572 
   1573 If the configure script is given --with-diet-libc, don't use thread
   1574 local storage, since diet libc doesn't support TLS.  (Addresses
   1575 Sourceforge Bug: #2000654)
   1576     
   1577 Fix the blkid regression test suite to tolerate older versions of
   1578 mkswap that don't support the -U option.
   1579 
   1580 A few library routines have been converted to support 64-bit block
   1581 numbers; in particular, the I/O manager functions, the test_io,
   1582 inode_io, and unix_io managers have all be converted to support 64-bit
   1583 operation.
   1584 
   1585 Debugfs can now be extended for use by test programs.  See
   1586 lib/ext2fs/extents.c for an example for how it can be used.  The test
   1587 program links against the debugfs object files, and provides
   1588 additional commands by defining an auxiliary libss command table.
   1589 
   1590 The lazy_bg filesystem feature, which was only used by developer's
   1591 testing, has been removed since it has been largely supplanted by
   1592 uninit_bg.  This also simplifies the code.
   1593 
   1594 
   1595 E2fsprogs 1.40.11 (June 17, 2008)
   1596 =================================
   1597 
   1598 Mke2fs, tune2fs, and resize2fs now use floating point to calculate the
   1599 percentage of reserved blocks.  (Addresses Debian Bug: #452639)
   1600 
   1601 Updated Spanish and Catalan translations.
   1602 
   1603 Fixed various Debian packaging issues --- see debian/changelog for
   1604 details.  (Addresses Debian Bugs: #483962, #483023)
   1605 
   1606 Add detection for ZFS volumes to the libblkid library.
   1607 
   1608 Fixed spelling mistakes, typos, and otherwise clarified man pages.
   1609 (Addresses Debian Bug: #486463)
   1610 
   1611 Programmer's notes:
   1612 -------------------
   1613 
   1614 Fix marginal C code in probe_lvm2() function to the blkid library more
   1615 portable for older compilers.
   1616 
   1617 Fix build problems on MacOS X.  (Addresses Sourceforge Bug: #1972473)
   1618 
   1619 Fix ext2fs_swap{16,32,64} functions so they can be used by external
   1620 applications on big-endian machines.  (Addresses Debian Bug: #484879)
   1621     
   1622 
   1623 E2fsprogs 1.40.10 (May 21, 2008)
   1624 ================================
   1625 
   1626 When deciding whether or not to revalidate a blkid cache entry, if the
   1627 device's mtime is newer than the last time the cached entry was
   1628 validated, force a revalidation.
   1629 
   1630 Fix a potential data corruption bug in e2fsck in the journal replay.
   1631 The chances of this is happening is extremely remote, especially the
   1632 default data=ordered or data=writeback modes.  However, if a block
   1633 which has been journalled starts with the first four bytes 0xc03b3998,
   1634 when e2fsck replays the journal, those four bytes will be replaced
   1635 with zero's.  Fortunately, it is highly, highly unlikely for e2fsck
   1636 metadata to begin with those fatal 4 byte sequence, and unless
   1637 data=ordered mode is in use, data blocks are never journaled.
   1638 
   1639 Updated German, Dutch, Sweedish, and Vietnamese translations.
   1640 
   1641 Programmer's notes:
   1642 -------------------
   1643 
   1644 Fixed various Debian packaging issues --- see debian/changelog for
   1645 details.
   1646 
   1647 Remove default sizes of types when cross compiling, since autoconf
   1648 2.50 can figure this out automatically now.
   1649 
   1650 
   1651 E2fsprogs 1.40.9 (April 27, 2008)
   1652 =================================
   1653 
   1654 SuSE's security team audited uuidd and came up with a few minor
   1655 issues.  None of them are serious given that uuidd runs setuid as a
   1656 unprivileged user which has no special access other than libuuid
   1657 directory, but it's good to get them fixed.
   1658 
   1659 One additional fix in ext2fs_swap_inode_full() needed for resize2fs to
   1660 work correctly with in-inode extended attributes.
   1661 
   1662 Updated German, Czech, Dutch, French, Polish, Sweedish, and Vietnamese
   1663 translations.
   1664 
   1665 Debugfs will avoid using a pager if the standard output is not a tty.
   1666 
   1667 Fix debugfs and tune2fs to correctly handle daylight savings time when
   1668 parsing a time string.
   1669 
   1670 Fixed spelling mistakes, typos, and otherwise clarified man pages.
   1671 
   1672 Fix fsck completion bars when multiple filesystems were being checked
   1673 in parallel.  (Addresses Debian Bug: #432865, Addresses Launchpad Bug:
   1674 #203323, Addresses Sourceforge Bug: #1926023)
   1675 
   1676 Fix fsck so that progress information is sent back correctly when
   1677 multiple filesystems are being check and the output of fsck is being
   1678 redirected to a file descriptor.  Also, include the device name (w/o
   1679 spaces) in the progress information sent back via a file descriptor.
   1680 (Addresses Launchpad Bug: #203323, Addresses Sourceforge Bug:
   1681 #1926023)
   1682 
   1683 Teach fsck to treat "ext4" and "ext4dev" as ext* filesystems.
   1684 
   1685 If logsave receives a SIGTERM or SIGINT signal, it will now pass that
   1686 signal to its child process.
   1687 
   1688 Fix mke2fs's creation of are resize inode when there is a non-standard
   1689 s_first_data_block setting.
   1690 
   1691 Fix bug in blkid when run by an unprivileged user; most devices were
   1692 not reported correctly.  9Addresses Launchpad Bug: #220275)
   1693 
   1694 Mke2fs will not allow the logically incorect combination of
   1695 resize_inode and meta_bg, which had previously caused mke2fs to create
   1696 a corrupt fileystem.
   1697 
   1698 Fix fsck in German locales so that a 'j' means yes.
   1699 (Addresses Sourceforge Bug: #1947683)
   1700 
   1701 
   1702 Programmer's notes:
   1703 -------------------
   1704 
   1705 Fixed various Debian packaging issues --- see debian/changelog for
   1706 details.
   1707 
   1708 Update valgrind options in test_script to work with valgrind 3.2.3
   1709 
   1710 Update texinfo.tex to a much newer version from the FSF.
   1711 
   1712 Remove bashism for configure script and from the lib/ss Makefile.
   1713 Addresses Sourceforge Bug: 1921969
   1714 
   1715 Fix some silently broken tests: m_no_opt, m_meta_bg, and m_raid_opt.
   1716 
   1717 Fix build system so that if texinfo is not installed, it won't print a
   1718 (harmless) error message.
   1719 
   1720 
   1721 E2fsprogs 1.40.8 (March 13, 2008)
   1722 =================================
   1723 
   1724 Fixed e2image -I so it works on image files which are larger than 2GB.
   1725 
   1726 Fixed e2fsck's handling of directory inodes with a corrupt size field.  If
   1727 the size is larger than the number of blocks found in the inode, don't
   1728 try to allocate extra empty blocks at the end of the directory to make
   1729 up the difference; there's no point to doing that.  In addition, if
   1730 the size is not a multiple of a blocksize, always fix it.
   1731 
   1732 E2fsck handled a pass 2 "should never happen error" by not giving
   1733 enough information and then core dumping.  Unfortunately, it was all
   1734 too easy to trigger the "should never happen" situation if a
   1735 directory's inode size was not correct.  This has been fixed, but
   1736 e2fsck has also been taught how to handle this situation more
   1737 gracefully, by simply removing the inode hash tree information, so
   1738 that it can be rebuilt again after e2fsck's pass 3.  (Addresses
   1739 Launchpad Bug: #129395)
   1740 
   1741 Resize2fs had a bug resizing large inodes with extended attributes
   1742 that was fixed in 1.40.6; unfortunately, it turned out it wasn't fixed
   1743 completely on big-endian systems such as PowerPC.  The bug should be
   1744 completely fixed now.  Yay for regression test suites.  (Addresses Red
   1745 Hat Bugzilla: #434893)
   1746     
   1747 Updated German, Czech, Dutch, Polish, Sweedish, and Vietnamese
   1748 translations.  Many thanks to Philipp Thomas from Novell for stepping
   1749 up to become the new German translation maintainer!  (Addresses Debian
   1750 Bugs: #302512, #370247, #401092, #412882).
   1751 
   1752 When e2fsck is clearing a corrupt inode's HTREE directory information,
   1753 make it clear that it is just clearing the HTREE information, not the
   1754 entire inode.
   1755 
   1756 Fixed spelling mistakes, typos, and otherwise clarified man pages.  
   1757 
   1758 Programmer's notes
   1759 ------------------
   1760 
   1761 Add new functions, ext2fs_dblist_get_last() and
   1762 ext2fs_dblist_drop_last(), which allows the caller to examine the last
   1763 directory block entry added to the list, and to drop if it necessary.
   1764 
   1765 Fixed a portability problem in libblkid with DJGPP.
   1766 
   1767 Fix an obvious typo in an "internal error" message in e2fsck.  Thanks
   1768 to Philipp Thomas for pointing this out.
   1769 
   1770 If the info files are not built, change "make install" so it doesn't
   1771 fail with an error code.
   1772 
   1773 
   1774 E2fsprogs 1.40.7 (February 28, 2008)
   1775 ====================================
   1776 
   1777 Remove support for clearing the SPARSE_SUPER feature from tune2fs, and
   1778 depreciate the -s option, since it can result in filesystems which
   1779 e2fsck can't fix easily.  There are very good reasons for wanting to
   1780 disable sparse_super; users who wants to turn off sparse_super can use
   1781 debugfs.  (Addresses Sourceforge Bug: #1840286)
   1782     
   1783 Add missing options to mke2fs's usage message.  (Addresses Sourceforge
   1784 Bug: #1751393)
   1785     
   1786 Fix bug in resize2fs when large (greater than 128 byte) inodes are
   1787 moved when a filesystem is shrunk; it was only moving the first 128
   1788 bytes, so extended attributes were not getting moved.  (Addresses Red
   1789 Hat Bugzilla: #434893)
   1790 
   1791 E2fsck now prints an explicit message when the bad block inode is
   1792 updated, to avoid confusion about why the filesystem was modified.
   1793 (Addresses Sourceforge Bug: #756460)
   1794     
   1795 Allow mke2fs and tune2fs manipulate the large_file feature.
   1796 Previously we just let the kernel and e2fsck do this automatically,
   1797 but e2fsck will no longer automatically clear the large_file feature.
   1798 It still isn't really necessary to worry about this feature flag
   1799 explicitly, but some users seem to care.  (Addresses Red Hat Bugzilla:
   1800 #258381)
   1801     
   1802 Suppress message about an old-style fstab if the fstab file is empty.
   1803 (Addresses Debian Bug: #468176)
   1804     
   1805 Fix (really minor) bug in debugfs's find_free_block so it avoids
   1806 reporting a free block more than once if there are too few free blocks
   1807 in the filesystem.  (Addresses Sourceforge Bug: #1096315)
   1808     
   1809 Change e2fsck to no longer clear the LARGE_FILES feature flag
   1810 automatically, when there are no more > 2GB files in the filesystem.
   1811 It's been almost a decade since there have been kernels that don't
   1812 support this flag, and e2fsck clears it quietly without telling the
   1813 user why the filesystem has been changed.
   1814     
   1815 Fix bug which could cause libblkid to seg fault if a device mapper
   1816 volume disappears while it is being probed.  (Addresses RedHat
   1817 Bugzilla: #433857)
   1818     
   1819 Inhance e2fsck's reporting of unsupported filesystem feature flags.
   1820 (Addresses Sourceforge Feature Request: #1175808)
   1821     
   1822 Fix option syntax in dumpe2fs for explicit superblock and blocksize
   1823 parameters.  What was currently documented in the man page has been
   1824 broken for some time, due to getopt() implementation changes.  The
   1825 option sytax has been changed to one which is can be more portable
   1826 supported and which is consistent with the format for extended options
   1827 in mke2fs and tune2fs.  (Addresses Sourceforge Bug: #1830994)
   1828     
   1829 Add support to tune2fs to clear the resize_inode feature.  This
   1830 requires an fsck afterwards.  (Addresses Red Hat Bugzilla: #167816)
   1831 
   1832 Teach blkid to detect LVM2 physical volumes.  (Addresses Red Hat
   1833 Bugzilla: #409321)
   1834 
   1835 Add support for setting RAID stride and stripe-width via mke2fs and
   1836 tune2fs.  Teach dumpe2fs to print the RAID parameters.
   1837 
   1838 Add support for setting new superblock fields to debugfs's
   1839 set_super_value.
   1840 
   1841 Add support for printing "mostly-printable" extended attributes in
   1842 Debugfs.
   1843 
   1844 Add support for the -M option to fsck, which causes it to ignore
   1845 mounted filesystem.
   1846 
   1847 Fix uuidd so that it creates the pid file with the correct pid number.
   1848 (Addresses Sourceforge Bug: #1893244)
   1849 
   1850 Fix various gcc -Wall warnings.
   1851 
   1852 Update Czech, Dutch, Polish, Sweedish, and Vietnamese translations
   1853 
   1854 Fixed spelling mistakes, typos, and otherwise clarified man pages.  
   1855 (Addresses Sourceforge Patch: #1399325)
   1856 
   1857 
   1858 Programmer's notes:
   1859 -------------------
   1860 
   1861 Fixed various Debian packaging issues --- see debian/changelog for
   1862 details.  (Addresses Debian Bug: #466929)
   1863 
   1864 Add new flag EXT2_FLAG_NONFREE_ON_ERROR ext2fs_open2() which returns a
   1865 partially filled-in filesystem object on an error, so that e2fsck can
   1866 print more intelligent error messages.
   1867     
   1868 Add a new function e2p_edit_feature2() which allows the caller to
   1869 specify which feature flags are OK to set or clear, and which returns
   1870 more specific information about feature flags which are not allowed to
   1871 be set/cleared.
   1872     
   1873 Set the C locale in the test_script driver since it uses [A-Za-z].
   1874 (Addresses Sourceforge Bug: #1890526)
   1875 
   1876 Use fcntl locking instead of lockf in libuuid since Cygwin doesn't
   1877 support lockf().
   1878 
   1879 Change configure.in to avoid using the 'dc' command unless it is
   1880 absolutely needed. (i.e., when using parsing a WIP-style version
   1881 number)  (Addresses Sourceforge Bug: #1893024)
   1882 
   1883 Add portability checks to support compilation under DJGPP.
   1884 
   1885 Update to the latest samba tdb code before the LGPLv3 change, which
   1886 fixes a realloc() leak on failure.
   1887 
   1888 Fix memory leak in ext2fs_alloc_block().
   1889 
   1890 Fix makefile dependency issues for various install targets.
   1891 (Addresses-Sourceforge-Patches: #1903484, #1903466, #1903456)
   1892     
   1893 Improve descriptions for the r_move_itable and r_resize_inode tests.
   1894 
   1895 
   1896 E2fsprogs 1.40.6 (February 9, 2008)
   1897 ===================================
   1898 
   1899 Add support for returning labels for UDF filesystems in the blkid
   1900 library.
   1901 
   1902 Fix bug in the blkid library where cached filesystems was not being
   1903 flushed when opening USB devices returned the error ENOMEDIUM.
   1904 (Addresses Debian Bug: #463787)
   1905 
   1906 Added logic to the blkid library to automatically choose whether a
   1907 filesystem should be mounted as ext4 or ext4dev, as appropriate.
   1908 
   1909 Allow tune2fs to set and clear the test_fs flag on ext4 filesystems.
   1910 
   1911 Fix a bug in e2fsck which caused it to core dump if e2fsprogs had been
   1912 configured with --enable-jbd-debug.
   1913 
   1914 Document the BLKID_FILE environment variable in the libblkid man page
   1915 
   1916 Programmer's Notes:
   1917 -------------------
   1918 
   1919 Update e2fsprogs translation template and Vietnamese and Czech translations
   1920 
   1921 Fixed various Debian packaging issues --- see debian/changelog for
   1922 details.  (Addresses Debian Bugs: #436058)
   1923 
   1924 Don't try to create $DESTDIR/etc/init.d as part of make install as we
   1925 don't install the init.d script (and it's not the recommended way to
   1926 start uuidd anyway).  (Addresses Sourceforge Bug: #1885085)
   1927 
   1928 Use thread local storage to fix a theoretical race condition if two
   1929 threads try to format an unknown error code at the same time in the
   1930 com_err library.
   1931 
   1932 
   1933 E2fsprogs 1.40.5 (January 27, 2008)
   1934 ===================================
   1935 
   1936 Fix a potential overflow big in e2image if the device name is too
   1937 long.
   1938 
   1939 Mke2fs will now create new filesystems with 256 byte inodes and the
   1940 ext_attr feature flag by default.  This allows for much better future
   1941 compatibity with ext4 and speeds up extended attributes even on ext3
   1942 filesystems.
   1943 
   1944 Teach e2fsck to ignore certain "safe" filesystem features which are
   1945 set automatically by the kernel.  Having the kernel set features
   1946 automagically behind the user's back is a bad idea, and we should try
   1947 to break the kernel of this habit, especially for the newer ext4
   1948 feature flags.  But for now, we will try to avoid needless full checks
   1949 which can annoy users who are doing fresh installs.
   1950 
   1951 Add support in tune2fs and mke2fs for making a filesystem as being "ok
   1952 to be used with test kernel code".  This will be needed for using test
   1953 filesystems with the latest ext4 kernel code.
   1954 
   1955 Change e2fsck -fD so that it sorts non-htree directories by inode
   1956 numbers instead of by name, since that optimizes performances much
   1957 more significantly.  (Addresses-Sourceforge-Feature-Request: #532439)
   1958 
   1959 If e2image fills the disk, fix it so it exits right away instead of
   1960 spewing large numbers of error messages.
   1961 (Addresses-Sourceforge-Feature-Request: #606508)
   1962 
   1963 If ftruncate64() is not available for resize2fs, let it use ftrucate()
   1964 instead, but have it check to see if the size would get truncated, and
   1965 skip calling ftruncate in that case.
   1966 
   1967 Add support for detecting HFS+ filesystems in the blkid library.
   1968 
   1969 Add supprt in the blkid library for ext4/ext4dev filesystems.
   1970 
   1971 Fix a bug in blkid where it could die on a floating point exception
   1972 when presented with a corrupt reiserfs image.
   1973 
   1974 Fix blkid's handling of ntfs UUID's so that leading zeros are printed
   1975 such that UUID string is a fixed length.
   1976 
   1977 Add sample python bindings for the uuid library to the contrib
   1978 directory.  (Addresses-Sourceforge-Patches: #778817)
   1979 
   1980 Fix debugfs's 'lsdel' command so it uses ext2fs_block_iterate2 so it
   1981 will work with large files.  (Addresses Sourceforge Feature Request:
   1982 #1257500 and Sourceforge Support Request: #1253511)
   1983     
   1984 Allow the debugfs 'undel' command to undelete an inode without linking
   1985 it to a specific destination directory, since this might require
   1986 allocating blocks that could overwrite some yet-to-be-recovered
   1987 deleted files.  (Addresses-Sourceforge-Feature-Request: #967141)
   1988 
   1989 Update Swedish translations from the Translation Project.
   1990 
   1991 Programmer's Notes:
   1992 -------------------
   1993 
   1994 Fix configure handling of --sbindir (which should rarely be used, but
   1995 someone did complain, so let's fix it).  (Addresses Sourceforge Bug:
   1996 #498381)
   1997 
   1998 Updated e2fsprogs.spec file to include a new uuidd package
   1999 
   2000 Use pkg-config to determine where to find the devmapper library so we
   2001 can find out where it is located on different distributions.
   2002 
   2003 Fix Makefile race so that "make -j3 distclean" works correctly
   2004 
   2005 Fix portability problems on non-Linux/non-Hurd/non-Masix systems,
   2006 especially on MacOS X systems.  (Addresses Sourceforge Bugs: #1861633,
   2007 #1819034, #1863819)
   2008 
   2009 Fixed spelling mistakes, typos, and otherwise clarified man pages.
   2010 
   2011 Fixed various Debian packaging issues --- see debian/changelog for
   2012 details.  (Addresses Debian Bugs: #459403, #459475, #459614)
   2013 
   2014 Remove the --enable-dynamic-static configure option, and build e2fsck
   2015 dynamically by default.  If the user wants e2fsck.static, he/she will
   2016 need to build it via "make -C e2fsck e2fsck.static"
   2017 
   2018 Fix various build warnings due to missing prototypes.
   2019 (Addresses Sourceforge Patch: #1861663, #1861659)
   2020 
   2021 
   2022 E2fsprogs 1.40.4 (December 31, 2007)
   2023 ====================================
   2024 
   2025 Improve time-based UUID generation.  A new daemon uuidd, is started
   2026 automatically by libuuid if necessary.  This daemon is setuid to allow
   2027 updates to /var/lib/libuuid, so the clock sequence number can be
   2028 stored and so if the clock is set backwards, it can be detected.
   2029 (Addresses Sourceforge Bug: #1529672, Addresses Red Hat Bugzilla:
   2030 #233471)
   2031 
   2032 Filter out the NEEDS_RECOVERY feature flag when writing out the backup
   2033 superblocks.  This avoids e2fsck from concluding that a full
   2034 filesystem check is required before backing up the superblock due to
   2035 changes in the feature flags.  (Addresses Debian Bug: #454926)
   2036 
   2037 Fix fsck to only treat the '#' character as a comment at the beginning
   2038 of the line in /etc/fstab.  Otherwise fstabs for the fuse filesystem
   2039 will cause fsck to issue an bogus warning message.
   2040 (Addresses Gentoo bug: #195405, Addresses Sourceforge bug: #1826147)
   2041 
   2042 Format control characters and characters with the high eighth bit set
   2043 when printing the contents of the blkid cache, to prevent filesystems
   2044 with garbage labels from sending escape sequences to the user's screen
   2045 that might, for example place it in graphics mode.  (Addresses Ubuntu
   2046 Bug: #78087)
   2047 
   2048 Fix sign-extension problem on 64-bit systems in in the com_err
   2049 library.  (Addresses Sourceforge Bug: #1809658)
   2050 
   2051 Avoid division by zero error when probing an invalid FAT filesystem in
   2052 the blkid library.  (Addresses Sourceforge Bug: #1831627)
   2053 
   2054 Update Dutch, Polish, and Vietnamese translations from the Translation
   2055 Project.  Remove the Rwandan translation upon advice of the
   2056 Translation Project.
   2057 
   2058 Programmer's Notes:
   2059 -------------------
   2060 
   2061 Fix the libss "make check" regression test so that it works if the
   2062 current directory is not in the user's path or if the libss shared
   2063 library is not installed.  (Addresses Sourceforge Bug: #1848974)
   2064 
   2065 Fixed spelling mistakes, typos, and otherwise clarified man pages.
   2066 (Addresses Debian Bugs: #444883, #441872)
   2067 
   2068 Fixed various Debian packaging issues --- see debian/changelog for
   2069 details.  (Addresses Debian Bugs: #437720, #451172, #458017)
   2070 
   2071 Fix build failure on non-Linux/non-Hurd/non-Masix systems.
   2072 (Addresses Sourceforge Bug: #1859778)
   2073 
   2074 Fix Hurd portability issues.  (Addresses Debian Bug: #437720)
   2075 
   2076 
   2077 E2fsprogs 1.40.3 (December 5, 2007)
   2078 ===================================
   2079 
   2080 Fix a potential security vulnerability where an untrusted filesystem
   2081 can be corrupted in such a way that a program using libext2fs will
   2082 allocate a buffer which is far too small.  This can lead to either a
   2083 crash or potentially a heap-based buffer overflow crash.  No known
   2084 exploits exist, but main concern is where an untrusted user who
   2085 possesses privileged access in a guest Xen environment could corrupt a
   2086 filesystem which is then accessed by the pygrub program, running as
   2087 root in the dom0 host environment, thus allowing the untrusted user to
   2088 gain privileged access in the host OS.  Thanks to the McAfee AVERT
   2089 Research group for reporting this issue.  (Addresses CVE-2007-5497.)
   2090 
   2091 Fix hueristics in blkid which could cause a disk without partitions to
   2092 be incorrectly skipped when a loopback device is present.  (Addresses
   2093 Red Hat Bugzilla #400321.)
   2094 
   2095 Fix e2image so that in raw mode it does not create an image file which
   2096 is one byte too large.
   2097 
   2098 Change mke2fs's usage message so it recommends the preferred -E option
   2099 instead of the deprecated -R option.
   2100 
   2101 Enhance the blkid library so it will recognize squashfs filesystems.
   2102 (Addresses Red Hat Bugzilla #305151.)
   2103 
   2104 Enhance e2fsck so it will force the backup superblocks to be backed up
   2105 if the filesystem is consistent and key constants have been changed
   2106 (i.e., by an on-line resize) or by e2fsck in the course of its
   2107 operations.
   2108 
   2109 Enhance blkid's detection of FAT filesystems; so that USB disks with
   2110 only a single bootable partition will not get missed.
   2111 
   2112 E2fsck will no longer mark a filesystem as invalid if it has time
   2113 errors (i.e., if superblock mount time or last write time is in the
   2114 future) and the user refuses to fix the problem.
   2115 
   2116 The Ubuntu init scripts don't properly set the system time correctly
   2117 from hardware clock if the hardware clock is configured to tick local
   2118 time instead of GMT time.  Work around this as best as we can by
   2119 providing an option, buggy_init_scripts, in /etc/e2fsck.conf which can
   2120 be set on Ubuntu systems.  (Addresses Debian Bug #441093, and Ubuntu
   2121 Bug #131201.)
   2122 
   2123 Fix fsck to ignore /etc/fstab entries for bind mounts.  (Addresses Red
   2124 Hat Bugzilla #151533.)
   2125 
   2126 Fix e2fsck so that if the superblock is corrupt, but still looks
   2127 vaguely like an ext2/3/4 superblock, that it automatically tries to
   2128 fall back to the backup superblock, instead of failing with a hard
   2129 error.
   2130 
   2131 Make the e2fsprogs program more robust so that they will not crash
   2132 when opening a corrupt filesystem where s_inode_size is zero.
   2133 
   2134 Change e2fsck so it uses sscanf() instead of atoi() so it non-numeric
   2135 arguments are detected as such and the parse error is reported to the
   2136 user.   (Addresses Debian Bug #435381.)
   2137 
   2138 Change e2fsck so it will not complain if a file has blocks reallocated
   2139 up to the next multiple of a system's page size.
   2140 
   2141 Fix bug in ext2fs_check_desc() which will cause e2fsck to complain
   2142 about (valid) filesystems where the inode table extends to the last
   2143 block of the block group.  (Addresses Red Hat Bugzilla #214765.)
   2144 
   2145 Fix a bug in ext2fs_initialize() which causes mke2fs to fail while
   2146 allocating inode tables for some relatively rare odd disk sizes.
   2147 (Addresses Red Hat Bugzilla #241767.)
   2148 
   2149 Add Catalan translation and update Dutch and Swedish translations
   2150 from the Translation Project.
   2151 
   2152 Fix big-endian byte-swapping bug in ext2fs_swap_inode_full().  We
   2153 still had an issue when trying to figure out whether we need to
   2154 byte-swap fast symlinks that contained extended attributes.
   2155 
   2156 Fixed spelling mistakes, typos, and otherwise clarified man pages.
   2157 (Addresses SourceForge Bug #1821333.)
   2158 
   2159 
   2160 Programmer's Notes:
   2161 -------------------
   2162 
   2163 Fix mke2fs tests to avoid needing any significant ^M (CR) characters
   2164 
   2165 Add "make check" to the RPM spec file
   2166 
   2167 Fix "make install" and 'make unstall" in misc/Makefile.in so that it
   2168 works correctly when the prefix is not the root directory.
   2169 
   2170 Fix the resize2fs tests, r_move_itable and r_resize_inode, so they
   2171 clena up after themselves by deleting the test.img temporary file
   2172 after completing the test.
   2173 
   2174 Fixed a corner case bug ext2fs_unlink() when trying to delete the
   2175 first directory entry in a directory block and the last directory
   2176 entry in the previous directory block is not in use.  Fortunately
   2177 ext2fs_unlink() is only used by debugfs and e2fsck, and in e2fsck in
   2178 places where it is extremely unlikely to run into this corner case.
   2179 
   2180 Fix missing dependency which would cuase parallel builds to fail.
   2181 (Addresses Sourceforge Bug #1842331.)
   2182 
   2183 Fix a build error on newer gcc caused by lib/ext2fs/ismounted.c
   2184 calling open(O_CREATE) with a missing mode parameter.
   2185 
   2186 Fix the test_ss.c in lib/ss so it can be used as an example
   2187 application program for the library as well as a regression test
   2188 suite.
   2189 
   2190 Fix ext2fs_dblist_dir_iterate() so that error codes and abort codes
   2191 are properly passed back up through the call stack.
   2192 
   2193 E2fsprogs 1.40.2 (July 12, 2007)
   2194 ================================
   2195 
   2196 A recent change to e2fsck_add_dir_info() to use tdb files to check
   2197 filesystems with a very large number of filesystems had a typo which
   2198 caused us to resize the wrong data structure.  This would cause a
   2199 array overrun leading to malloc pointer corruptions and segfaults.
   2200 Since we normally can very accurately predict how big the the dirinfo
   2201 array needs to be, this bug only got triggered on very badly corrupted
   2202 filesystems.
   2203 
   2204 Fix a bug in e2fsck which caused it to incorrectly salvange
   2205 directories when the last entry's rec_len is bogusly too big.  This
   2206 resulted in a nonsense filesystem corruption to be reported, and
   2207 required a second run of e2fsck to fully fix up the directory.
   2208 
   2209 Update tune2fs man page to include more discussion of reserved blocks
   2210 (Addresses Launchpad bug #47817)
   2211 
   2212 Update Turkish, Polish, Dutch, and Vietnamese PO files from the
   2213 Translation Project
   2214     
   2215 
   2216 E2fsprogs 1.40.1 (July 7, 2007)
   2217 ===============================
   2218 
   2219 Fix bug which could cause libblkid to loop forever.  When revalidating
   2220 a partition where there is obsolete information in /etc/blkid.tab, we
   2221 end up freeing a the type tag without clearing dev->bid_type, causing
   2222 blkid_verify() to loop forever.  (Addresses Debian Bug: #432052)
   2223     
   2224 The Turkish translation has a bug in it where it has the translation
   2225 of "E@e '%Dn' in %p (%i)" to "E@E".  This causes @E to be expanded at
   2226 @E, recursively, forever, until the stack fills up and e2fsck core
   2227 dumps.  We fix this by making e2fsck stop @-expansions after a
   2228 recursive depth of 10, which is far more than we need.
   2229 (Addresses Sourceforge Bug: #1646081)
   2230     
   2231 Compile the default mke2fs.conf into mke2fs program.  People are
   2232 getting surprised by mke2fs creating filesystems with different
   2233 defaults than earlier versions of mke2fs if mke2fs.conf is not
   2234 present.  So we now create a built in version of mke2fs.conf file
   2235 which is used by mke2fs if the /etc/mke2fs.conf is not present.
   2236 (Addresses SourceforgeBug: #1745818)
   2237 
   2238 Improve the config/parse_types.sh helper script.  Fix a potential
   2239 security problem if e2fsprogs is built as root (as Gentoo does!).  In
   2240 addition fix the script and how it is called from the configure script
   2241 so that it does the right thing when cross-compiling.  (Fixes Gentoo
   2242 bug: #146903)
   2243     
   2244 Update Vietnamese, French, and Dutch PO files from the Translation
   2245 Project.  Also created a new e2fsprogs.pot file for translator.
   2246     
   2247 Fix bogus strip permission errors when building under Debian.  When
   2248 building the e2fsprogs dpkg's, the dh_strip command emits a large
   2249 number of error messages caused by the permissions not being right.
   2250 So run dh_fixperms before running dh_strip.
   2251 
   2252 Programmer's Notes:
   2253 -------------------
   2254 
   2255 Add new function: profile_set_default().  This function sets the value
   2256 of the pseudo file "<default>".  If the file "<default>" had
   2257 previously been passed to profile_init(), then def_string parameter
   2258 will be parsed and used as the profile information for the "<default>"
   2259 file.
   2260     
   2261 Fix mk_cmds's error reporting so that it is unambiguous that it is the
   2262 mk_cmds script which is generating the error.  (Obviates Gentoo patch:
   2263 e2fsprogs-1.32-mk_cmds-cosmetic.patch)
   2264     
   2265 Fix the test suite to use LC_ALL instead of LANG.  LC_ALL is the "high
   2266 priority" environment variable that overrides all others, where as
   2267 LANG is the lowest priorty environment variable.  If LC_ALL is set, it
   2268 doesn't matter whether LANG, LANGUAGE, LC_COLLATE, LC_MESSAGES, and
   2269 the all the rest are set.  This will assure that the locale when
   2270 running the test suites is the "C" locale.  (Obviates Gentoo patch:
   2271 e2fsprogs-1.38-tests-locale.patch)
   2272     
   2273 
   2274 E2fsprogs 1.40 (June 29, 2007)
   2275 ==============================
   2276 
   2277 Fix divide by zero error in blkid's NTFS probing logic.
   2278 
   2279 Add new blkid -g option which causes the blkid cache to be garbage
   2280 collected.
   2281 
   2282 Fix a bug in libblkid which could cause the internal field bid_type to
   2283 become corrupted.  Fortunately bid_type isn't used much, and bid_label
   2284 and bid_uuid is only used by debugging code, so the impact of this bug
   2285 was very minor.
   2286 
   2287 Mke2fs will now store the RAID stride value when a filesystem is
   2288 created with a requested RAID stride, and then use it automatically in
   2289 resize2fs.
   2290 
   2291 Mke2fs has a sanity check added to make sure (inode_size * num_inodes)
   2292 isn't too big.  In some cases Lustre users have tried specifying an
   2293 inode size of 4096 bytes, while keeping an inode ratio of one inode
   2294 per 4096 bytes.  
   2295 
   2296 Improve sanity check in e2fsck's algorithm for finding a backup
   2297 superblock, so that it won't accidentally find a superblock that was
   2298 located in the journal, and then later reject it as being not a valid
   2299 backup superblock.
   2300 
   2301 Fix e2fsck get_size logic so that it will work with the Linux floppy
   2302 driver.  The Linux floppy driver is a bit different from the other
   2303 block device drivers, in that if the device has been opened with
   2304 O_EXCL, it disallows another open(), even if the second open() does
   2305 not have the O_EXCL flag.  (Addresses Debian Bug: #410569)
   2306 
   2307 Fix error checking of badblock's last-block and start-block arguments.
   2308 (Addresses Debian Bug: #416477)
   2309 
   2310 Fix e2fsck so that it doesn't overwrite the backup superblocks when
   2311 recovering a journal until the master superblock has been confirmed as
   2312 being sane.
   2313 
   2314 Change the blkid library to be much more paranoid about concluding
   2315 that a partition contains an NTFS filesystem, and fetch the UUID and
   2316 LABEL information from NTFS filesystems.  (Addresses Launchpad Bug:
   2317 #110138)
   2318 
   2319 Factor out the code which sets the default journal size and move it
   2320 into libext2fs.
   2321 
   2322 Enhance e2fsck so it will recreate the ext3 journal if the original
   2323 journal inode was cleared to due it being corrupt after finishing the
   2324 filesystem check.
   2325 
   2326 Fix e2fsck so that it updates the journal inode if it is corrupted and
   2327 the backup journal information from the superblock was successfully
   2328 used to recover the filesystem.
   2329 
   2330 Fix e2fsck so that it checks all of the blocks in the journal inode
   2331 for validity.  The original code only checked the direct blocks to
   2332 make sure the journal inode was sane.  Unfortunately, if some or all
   2333 of the indirect or doubly indirect blocks were corrupted, this would
   2334 not be caught.
   2335 
   2336 Add support in blkid to detect LUKS encrypted partitions.
   2337 
   2338 Add extra sanity checks for extended attributes in the case where the
   2339 size is zero but the offset is very large.
   2340 
   2341 Fix byte-swapping issues for large inodes in ext2fs_read_inode_full()
   2342 and ext2fs_get_next_inode_full().
   2343 
   2344 Clarify the copyright licenses used by the various libraries in
   2345 the top-level COPYING  file (Red Hat Bugzilla: 166058)
   2346 
   2347 Make mke2fs's defaults when /etc/mke2fs.conf doesn't exist more sane.
   2348 
   2349 Fix mke2fs and debugfs to support large (> 16 bit) uid's and gid's.
   2350 
   2351 Remove check in e2fsck which requires EA's in inodes to be sorted;
   2352 they don't need to be sorted, and e2fsck was previously wrongly
   2353 clearing unsorted EA's stored in the inode structure.
   2354 
   2355 Allow mke2fs or tune2fs to create a substantially larger journal (up
   2356 to 10,240,000 blocks).
   2357 
   2358 Fix MD superblock detection, and make sure the correct UUID is
   2359 reported from the MD superblock.
   2360 
   2361 Fix a signed vs. unsigned bug in debugfs.
   2362 
   2363 Enhance debugfs's date parser so that it accepts integer values.
   2364 
   2365 Fix e2fsck's pass1c accounting so it doesn't terminate too early if a
   2366 file with multiply claimed blocks is hard linked. or not at all if the
   2367 root directory contains shared blocks
   2368 
   2369 Enhance debugfs so it can modify the block group descriptors using the
   2370 command set_block_group_descriptor.
   2371 
   2372 Improve e2fsck's reporting of I/O errors so it's clearer what it was
   2373 trying to do when an error happens
   2374 
   2375 Fix a bug in in how e2fsprogs byte swaps inodes containing fast
   2376 symlinks that have extended attributes.  (Addresses Red Hat Bugzilla:
   2377 #232663 and LTC Bugzilla: #27634)
   2378 
   2379 Fix potential file descriptor leak in ext2fs_get_device_size() in an
   2380 error case.
   2381 
   2382 Add libreadline.so.5 support to libss.
   2383 
   2384 Impove badblocks -n/-w exclusive usage message.
   2385 
   2386 Fix dump_unused segfault in debugfs when a filesystem is not open
   2387 
   2388 Fix memory leak in blkid library.  (Addresses Debian Bug: #413661)
   2389 
   2390 Allow the debugfs lcd command to work w/o a filesystem being open.
   2391 (Addresses LTC Bugzilla #27513)
   2392 
   2393 Fix e2fsck to clear i_size for special devices with a bogus i_blocks
   2394 field on the first pass.
   2395 
   2396 Fix e2fsck to set the file type of the '..' entry when connecting
   2397 a directory to lost+found.  (Addresses Lustre Bug: #11645)
   2398 
   2399 Enhance e2fsck to recover directories whose modes field were corrupted
   2400 to look like special files.  This is probably only useful in
   2401 artificial test cases, but it will be useful if we ever do the "inodes
   2402 in directory" idea for ext4.
   2403 
   2404 Allow debugfs to dump (and rdump) > 2GB files.  (Addresses Debian Bug:
   2405 #412614)
   2406 
   2407 Fix resize2fs parsing of size parameter (in sector units).  This was
   2408 actually a bug in libe2p's parse_num_blocks() function.  When handling
   2409 the 's' suffix, it was ignoring the blocksize information passed in
   2410 from the caller and always interpreting the number in terms of a 1k
   2411 blocksize.  (Addresses Debian Bug: #408298)
   2412 
   2413 There was a floating point precision error which could cause e2fsck to
   2414 loop forever on really big filesystems with a large inode count.
   2415 (Addresses Debian Bug: #411838)
   2416 
   2417 Fix memory leak in ext2fs_write_new_inode()
   2418 
   2419 Add support for using a scratch files directory to reduce e2fsck's
   2420 emory utilization on really big filesystems.  This uses the TDB
   2421 library.  See the [scratch_files] section of the e2fsck.conf man page
   2422 for more details.
   2423 
   2424 Fixed type-punning bug which caused dumpe2fs to crash on the Arm
   2425 platform (Addresses Debian Bug: #397044)
   2426 
   2427 Add explanatory message to badblocks that -n and -w are mutually exclusive
   2428 (Addresses Debian Bug: #371869)
   2429 
   2430 Allow debugfs and dumpe2fs to support fs features under development.
   2431 
   2432 Add support for the new flag EXT2_FLAG_SOFTSUPP_FEATURES flag to
   2433 ext2fs_open() , which allows application to open filesystes with features
   2434 which are currently only partially supported by e2fsprogs.
   2435 
   2436 Allow unix_io to support offsets greater than 2G (Addresses
   2437 SourceForge Bug: #1547922)
   2438 
   2439 Fixed overflow and signed/unsigned problems caused by the number of
   2440 blocks or inodes exceeding 2**31 or being close to 2**32-1.
   2441 
   2442 Add support for unsigned directory hash calculations with hints in the
   2443 superblock to fix cross-architectural portability for htree
   2444 directories with filenames where the high 8th bit is set.  (Addresses
   2445 Debian: #389772)
   2446 
   2447 Fix resize2fs so that it gives user-intelligible error messages if the
   2448 filesystem or the kernel does not support on-line resizing.
   2449 (Addresses Debian Bug: #380548)
   2450 
   2451 Require mke2fs -F -F for really dangerous operations, since -F is
   2452 needed for less dangerous operations such as creating filesystems
   2453 images in regular files, or creating filesystems on whole block
   2454 devices.  These relatively innocuous usages should NOT be confused
   2455 with running mke2fs on an apparently-mounted or in-use filesystem.
   2456 
   2457 Allow the default inode size to be specified into the mke2fs.conf
   2458 file.
   2459 
   2460 Make the smallest default journal size is big enough so that on-line
   2461 resizing should always work.
   2462 
   2463 Fix silly spelling error in e2fsck.  (Addresses SourceForge bug:
   2464 #1531372)
   2465 
   2466 Fix debugfs coredump when lsdel is run without an open filesystem
   2467 (Addresses Debian Bug: #378335)
   2468 
   2469 Fix debugfs display bug us that bytes that have the high bit set are
   2470 displayed as "ec" instead of "ffffffec".
   2471 
   2472 Add support in lsattr so it will display the EXT4_EXTENTS_FL flag.
   2473 
   2474 Device mapper scanning wasn't working in the blkid library because the
   2475 pathnames had an extra "/dev" when they were being probed.
   2476 
   2477 Add GFS/GFS2 support to the blkid library.
   2478 
   2479 Fix blkid support of empty FAT filesystem labels.
   2480 
   2481 Avoid recursing forever (or for a long time) when the blkid library
   2482 searches for a device and there are symlinks to directories in /dev.
   2483 
   2484 Avoid unaligned halfword access in blkid when accessing FAT
   2485 superblocks, as this will cause Sparc/Solaris systems to throw a
   2486 SIGBUS error.
   2487 
   2488 The latest devmapper libraries requires pthreads, add -lpthreads to
   2489 the static link libraries for e2fsck.static if devmapper is enabled.
   2490 (Addresses Debian bug: #388718)
   2491 
   2492 Improve the (non-installed, for experts only) findsuper program by
   2493 printing the uuid and label from the superblocks, as well as the
   2494 starting and ending offsets of the filesystem given the information in
   2495 the superblock.  Omit by default printing superblocks that are likely
   2496 found in located in an ext3 journal unless an explicit -j option is
   2497 given.
   2498 
   2499 Updated Spanish, French and Dutch translations and added Catalan
   2500 translation.  (Addresses Debian bug: #411562)
   2501 
   2502 Use FreeBSD's DIOCGMEDIASIZE and DIOCGDINFO ioctls if available when
   2503 determining a partition's size, since binary searching to determine
   2504 the device doesn't work on FreeBSD.
   2505 
   2506 Documentation about UUID's is available in enough places, and it's
   2507 awkward to deal with debian-legal's insanities.  So I'm caving in the
   2508 "more-lunatic-than-RMS" wing of Debian by removing RFC-4122 so we
   2509 don't have do the dfsg tarball.  Also remove the rule that only tried
   2510 to install RFC-4122 on Ubuntu, since Ubuntu seems to want to fetch
   2511 e2fsprogs exclusively from Debian.  (Addresses Debian Bug: #407107)
   2512 
   2513 Fix the info-dir line so that the menu name does not contain a .info
   2514 prefix.  First of all, it's ugly, secondly, it causes the install-info
   2515 command to fail to remove the com_err info file from the
   2516 /usr/share/info/dir file when the comerr-dev package is removed and
   2517 purged.  (Addresses Debian Bug: #401711)
   2518 
   2519 Fixed spelling mistakes, typos, and otherwise clarified man pages.
   2520 (Addresses Debian Bug: #369761, #373004, #379695)
   2521 
   2522 Fixed various Debian packaging issues --- see debian/changelog for
   2523 details.  (Addresses Debian Bugs #389554, #390664, #413208, #419605,
   2524 #408352, #415560, #399155)
   2525 
   2526 
   2527 Programmer's notes:
   2528 -------------------
   2529 
   2530 E2fsck now supports the %It expansion when printing a problem report.
   2531 It will print the type of the inode in the problem context.
   2532 
   2533 Fix misc/Makefile.in so that it builds even if e2fsck hasn't been built yet
   2534 (Addresses Sourceforge Bug: #1565561)
   2535 
   2536 Remove unused variables and other lint/gcc -Wall cleanups
   2537 
   2538 Add check to ext2fs_get_device_size() so it will return EFBIG for for
   2539 filesystems contained in regular files where the filesystem image size
   2540 is returned by stat64().
   2541 
   2542 Set local environment variables to C so mk_cmds and compile_et always
   2543 work.  (Addresses SourceForge Bug: #1532177)
   2544 
   2545 Added the 64-bit byte swapping function ext2fs_swab64().
   2546 
   2547 Added two new helper functions to prevent 2**31/2**32-1 overflow
   2548 problems: ext2fs_div_ceil() and e2p_percent().
   2549 
   2550 Create new ext2fs library inline functions ext2fs_group_first_block()
   2551 and ext2fs_group_last_block() in order to calculate the starting and
   2552 ending blocks in a block group.
   2553 
   2554 Create the generated files read-only to remind developers not to edit them.
   2555 
   2556 Add support for autoconf 2.60 (with backwards compatibility for older
   2557 versions of autoconf).
   2558 
   2559 Added an "make rpm" target to top-level Makefile
   2560 
   2561 Added various FreeBSD portability fixes.
   2562 
   2563 Exclude mercurial files from the RPM build tree to speed up copy/build.
   2564 
   2565 Use root_sysconfdir to define the locations of mke2fs.conf and
   2566 e2fsck.conf instead of using a hard-coded /etc pathname.
   2567 
   2568 Prevent e2fsck.h and ext2_ext_attr.h from getting included multiple times.
   2569 
   2570 Fixed "make clean" in blkid's Makefile.in file from removing tst_*.c files.
   2571 
   2572 If diff -u is supported, use it to report test failures.
   2573 
   2574 Updates/improvements to RPM spec file
   2575 
   2576 Add on-disk format definitions for the following new features:
   2577 EXT4_FEATURE_RO_COMPAT_HUGE_FILE, EXT4_FEATURE_RO_COMPAT_GDT_CSUM,
   2578 EXT4_FEATURE_RO_COMPAT_DIR_NLINK, EXT4_FEATURE_INCOMPAT_64BIT,
   2579 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE
   2580 
   2581 Add a new make target "checked-failed" in the tests directory which
   2582 reruns any failed tests
   2583 
   2584 Update draft-leach-uuids-guids-01.txt with rfc4122.txt
   2585 
   2586 Fix miscellaneous bugs reported by Coverity: Dead code, potential nul
   2587 pointer dereferences, memory leaks, etc.  None were security-criticial
   2588 problems.
   2589 
   2590 Fix up usage and decrement error messages in the test_icount program
   2591 
   2592 Add debugging code to the com_err library; if the environment variable
   2593 COMERR_DEBUG is set to 1, print out debugging messages as error tables
   2594 are added and removed from the com_err library.  If the
   2595 COMERR_DEBUG_FILE environment variable is set (and the process is not
   2596 setuid) the debugging messages may be redirected to a file.
   2597 
   2598 Change all of the e2fsprogs programs to use the newer add_error_table()
   2599 and remove_error_table() interfaces instead of the much older
   2600 initialize_*_error_table() function.
   2601 
   2602 Add TDB support into the ext2fs library.  This allows us to have a
   2603 guaranteed library we can count on always being present so we can
   2604 store data in an on-disk database.
   2605 
   2606 Add support for using TDB to store the icount data, so we don't run out
   2607 of memory when checking really large filesystems.
   2608 
   2609 Change the regression test suite so that it skips empty test directories.
   2610 
   2611 Define the l_i_iversion field in ext2_inode.  The l_i_version field is
   2612 now defined from the old l_i_reserved1 field in the ext2 inode.  This
   2613 field will be used to store high 32 bits of the 64-bit inode version
   2614 number.
   2615 
   2616 Add Makefile production rule for e2fsprogs.spec in case it gets
   2617 deleted.
   2618 
   2619 Add new function profile_get_uint() to allow for a clean way to fetch
   2620 unsigned integers from the context.
   2621 
   2622 Add test to make sure the ext2 superblock structure is 1024 bytes.
   2623 
   2624 Fix typo in name of f_dup4 regression test
   2625 
   2626 Add new function blkid_gc_cache() which performs a garbage collection
   2627 pass on the /etc/blkid.tab file.
   2628 
   2629 The ext2fs_open() function now sets EXT2_FLAG_MASTER_SB_ONLY.  In
   2630 general, only e2fsck (after the filesystem is clean), tune2fs, and
   2631 resize2fs should change the backup superblocks by default.  Most
   2632 callers of ext2fs_open() should not be touching any superblock fields
   2633 which require the backups to be touched.
   2634 
   2635 Add new function to libext2fs, ext2fs_default_journal_size(), which
   2636 returns the default journal size.
   2637 
   2638 
   2639 E2fsprogs 1.39 (May 29, 2006) 
   2640 =============================
   2641 
   2642 Fix 32-bit cleanliness in e2fsprogs so that we can support filesystems
   2643 between 2**31 and 2**32 blocks.
   2644 
   2645 Change mke2fs to use /etc/mke2fs.conf as a configuration file to
   2646 configure the filesystem features, blocksize, and inode_ratio for
   2647 different filesystem types.
   2648 
   2649 Mke2fs will now create filesystems hash trees and on-line resizing
   2650 enabled by default, based on the new /etc/mke2fs.conf file.
   2651 
   2652 The e2fsprogs tools (resize2fs, e2fsck, mke2fs) will open the
   2653 filesystem device node in exclusive mode to prevent accidents by
   2654 system administrators.  In the case of resize2fs and mke2fs, it will
   2655 only use exclusive mode if the filesystem is not mounted.
   2656 
   2657 Fixed a bug in mke2fs which caused it to to fail when creating the
   2658 resize inode for large filesystems.  (Addresses Debian Bug #346580)
   2659 
   2660 When allocating space for the RAID filesystems with the stride
   2661 parameter, mke2fs will now place each portion of the group's inode
   2662 table right up after the superblock (if present) in order to minimize
   2663 fragmentation of the freespace.
   2664 
   2665 Speed up mke2fs and e2fsck by writing inode and block bitmaps more
   2666 efficiently by writing the inode and block bitmaps in one pass, thus
   2667 reducing the number of disk seeks required.
   2668 
   2669 Add support for on-line resizing to resize2fs.
   2670 
   2671 Fix blkid library so that logic to determine whether or not a device's
   2672 cached information in /etc/blkid.tab needs to be verified or not
   2673 doesn't get confused by a system clock which is insane (for example,
   2674 if the battery is dead on a Macintosh running PPC Linux.  (Addresses
   2675 Red Hat Bug: #182188)
   2676 
   2677 The blkid library will now store the UUID of the external journal used
   2678 by ext3 filesystems, so that in the future, the userspace mount binary
   2679 can use this to find the location of the external journal and pass
   2680 this information to the kernel.
   2681 
   2682 E2fsck will now consult a configuration file, /etc/e2fsck.conf to
   2683 control how various options should be handled.  See the e2fsck.conf
   2684 man page for more details.   (Addresses Debian Bug: #150295)
   2685 
   2686 E2fsck now prints an explanatory message when delaying a filesystem
   2687 check when the system is running on battery.  (Addresses Debian Bug:
   2688 #350306)
   2689 
   2690 E2fsck will detect if the superblock's last mount field or last write
   2691 field is in the future, and offer to fix if so.  (Addresses Debian Bug
   2692 #327580) These problems will be fixed automatically in preen mode
   2693 since Debian's boot sequence bogusly doesn't set the time correctly
   2694 until potentially very late in the bootup process, and this can cause
   2695 false positives which will cause users' systems to fail to boot.
   2696 (Addresses Debian Bugs #343662 and #343645)
   2697 
   2698 E2fsck now checks to see if the superblock hint for the location of
   2699 the external journal is incorrect, and if so, offer to update it.
   2700 (Addresses Debian Bug: #355644)
   2701 
   2702 Fix e2fsck from segfaulting on disconnected inodes that contain one or
   2703 more extended attributes.  (Addresses Debian Bug: #316736, #318463)
   2704 
   2705 E2fsck will stop and print a warning if the user tries running a
   2706 read/write badblocks test on a read-only mounted root filesystem.
   2707 
   2708 Fix a memory leak in e2fsck's error paths.  (Thanks to Michael
   2709 C. Thompson for pointing these out; they were originally found using
   2710 Coverity.)
   2711 
   2712 When resizing a file containing a filesystem, resize2fs will expand or
   2713 truncate a file as necessary.  (Addresses Debian Bug: #271607)
   2714 
   2715 Resize2fs will now automatically determine the RAID stride parameter that
   2716 had been used to create the filesystem, and use that for newly created
   2717 block groups.   The RAID stride parameter may also be manually specified
   2718 on the command line using the new -S option to resize2fs.
   2719 
   2720 Fix mke2fs so that it correctly creates external journals on
   2721 big-endian machines (such as a S/390).  
   2722 
   2723 Fix a bug in the e2p library which could cause dumpe2fs to (rarely)
   2724 fail to print out the journal or hash seed UUID.  (Thanks to Guillaume
   2725 Chambraud for pointing this out.)
   2726 
   2727 Dumpe2fs will now print the size of the journal (if present).
   2728 
   2729 Fix debugfs's set_inode_field command so it can properly set the frag,
   2730 fsize, uid_high, gid_high, and author fields in the inode instead of
   2731 silently failing, and so that setting the i_size actually sets i_size
   2732 correctly.
   2733 
   2734 Add a new debugfs command, set_current_time, which sets fs->now so
   2735 that regression test suites can repeatedly modify the filesystem's
   2736 last_write fields.
   2737 
   2738 Fix a bug in debugfs's icheck which would incorrectly report the owner
   2739 of an extended attribute block.
   2740 
   2741 Fix the debugfs commands htree_dump, dx_hash, and list_dir so they print a
   2742 print a usage message when an illegal option character is given.
   2743 
   2744 Fix debugfs's dump_unsued command on filesystems with a 64k blocksize
   2745 so it won't core dump.  (Addresses SourceForge bug #1424311)
   2746 
   2747 Fix mklost+found so that it creates a full-sized directory on
   2748 filesystems with larger block sizes.
   2749 
   2750 Fix a file descriptor leak in blkid library.
   2751 
   2752 Fix a display bug in "badblocks -sv" so that the done message properly
   2753 clears the block number at the end of the test.  (Addresses Debian Bug
   2754 #322231)
   2755 
   2756 Allow fractional percentages to the -m option in mke2fs and tune2fs
   2757 (Addresses Debian Bug: #80205)
   2758 
   2759 Use fstat/fstat64 in getsize.c if the the target is a regular file,
   2760 instead of attempting to do a binary search.  Fix some fd leaks in
   2761 error cases.
   2762 
   2763 Add support for device mapper library to the blkid library to ensure
   2764 that the "best" (i.e., leaf) device is probed by the blkid library.
   2765 
   2766 Fix the blkid library so that it notices when an ext2 filesystem is
   2767 upgraded to ext3.
   2768 
   2769 Improve the blkid's library VFAT/FAT detection; it now understands
   2770 labels stored in the root directory, and is more paranoid about
   2771 checking the FAT superblock values.
   2772 
   2773 Fixed a fd leak in the uuid library which was causing problems for the
   2774 LVM tools.  (Addresses Debian Bug: #345832)
   2775 
   2776 Add support for the reiser4 and software suspend partitions to the
   2777 blkid library.  Also add support for extract the label from iso9660
   2778 filesystems.
   2779 
   2780 Fix a compile_et bug which miscount the number of error messages if
   2781 continuations are used in the .et file.
   2782 
   2783 Add extra sanity checks to protect users from unusual cirucmstances
   2784 where /etc/mtab may not be sane, by checking to see if the device is
   2785 reported busy (works on Linux 2.6) kernels.  (Addresses Debian Bug
   2786 #319002)
   2787 
   2788 Updated French, Dutch, Polish, and Swedish translations.  (Addresses Debian
   2789 Bug: #343149, #341911, #300871, #316604, #316782, #330789)
   2790 
   2791 Fix use-after-free bug in e2fsck when finishing up the use of the
   2792 e2fsck context structure.
   2793 
   2794 Fixed spelling mistakes, typos, and otherwise clarified man pages and
   2795 documentation.  (Addresses Debian Bugs: #329859, #322188, #316811,
   2796 #312515, #351268, #357951, #347295, #316040, #368392, #368393, #368394,
   2797 #368179)
   2798 
   2799 Fixed various Debian packaging issues --- see debian/changelog for
   2800 details.  (Addresses Debian Bugs #317862, #320389, #290429, #310950,
   2801 #310428, #330737, #330736, #329074, #356293, #360046, #366017, #364516,
   2802 #362544, #362970)
   2803 
   2804 
   2805 Programmer's notes:
   2806 -------------------
   2807 
   2808 Update config.guess and config.sub to latest version (2006-02-23) from
   2809 FSF.
   2810 
   2811 Fix asm_types.h type conflicts on AMD 64 platforms.  (Addresses Debian
   2812 Bugs: #360661, #360317)
   2813 
   2814 Fixed the Makefile so that they work correctly on newer versions of
   2815 GNU make (i.e., 3.81).
   2816 
   2817 Add valgrind support to the regression test suites, and eliminate
   2818 false positives from valgrind.
   2819 
   2820 Add a regression test suite for the blkid library.
   2821 
   2822 Fix a fencepost error in resize2fs caught by valgrind.  
   2823 
   2824 Fix compiler warnings about missing memcpy prototypes.
   2825 
   2826 We no longer have the sparc assembly code in the header file any more,
   2827 so we shouldn't set _EXT2_HAVE_HAS_BITOPS_ for the sparc.  This would
   2828 break compiles on the sparc architectures when using gcc.
   2829 
   2830 In the libext2fs library, add the new field fs->now which if non-zero
   2831 is used instead of the system time when setting various filesystem
   2832 fields (last modified time, last write time, etc.)
   2833 
   2834 Fix gcc 4.01 complaints by adding a missing #include <string.h> to
   2835 ext2fs.h which is needed since the inline functions use memcpy().
   2836 (Addresses Sourceforge Bug #1251062)
   2837 
   2838 Use BUILD_CFLAGS and BUILD_LDFLAGS instead of CFLAGS and LDFLAGS in
   2839 the build system when building files in the util directory which are
   2840 needed during the build process.  This avoids potential problems when
   2841 cross-compiling and some of the options specified in CFLAGS or LDFLAGS
   2842 are not recognized as valid by the host compiler.  (Addresses
   2843 Sourceforge Bug #1261547)
   2844 
   2845 Clean up the blkid library by making the superblock and generic i/o
   2846 functions to be more generic.  Clean up interface to the probe
   2847 function, and fix memory leak.  Finallly, remove an unneeded reference
   2848 to probe.h in the lib/blkid/resolve.c
   2849 
   2850 Add an ext2fs_read_bb_FILE regression test to confirm proper detection
   2851 of invalid block #'s.
   2852 
   2853 The x86 asm constraints for ext2fs_{set/clear}_bit have been fixed to
   2854 indicate that the the function read/writes the memory location.
   2855 
   2856 Fix various gcc -Wall complaints.
   2857 
   2858 Add a dependency to make sure that the subdirectories are created
   2859 before creating all of the object files, in order to address parallel
   2860 build problem in the library Makefiles.  (Addresses Sourceforge Bug:
   2861 #1261553)
   2862 
   2863 Add $(LDFLAGS) to the command line argument when generating an ELF or
   2864 Solaris shared library, to allow cross-compile and other builds that
   2865 might need to specify -L paths to needed libraries.  (Addresses
   2866 Sourceforge Bug #1261549)
   2867 
   2868 Add a new feature, EXT2_FEATURE_COMPAT_LAZY_BG, which is initially
   2869 intended for testing purposes.  It allows an ext2/ext3 developer to
   2870 create very large filesystems using sparse files where most of the
   2871 block groups are not initialized and so do not require much disk
   2872 space.  Eventually it could be used as a way of speeding up mke2fs and
   2873 e2fsck for large filesystem, but that would be best done by adding an
   2874 RO_COMPAT extension to the filesystem to allow the inode table to be
   2875 lazily initialized on a per-block basis, instead of being entirely
   2876 initialized or entirely unused on a per-blockgroup basis.
   2877 
   2878 Fix backwards compatibility so e2fsprogs will better compile on Linux
   2879 2.0.35 systems.
   2880 
   2881 Make test scripts more robust against locale-related environment variables
   2882 
   2883 Fix type warning problem with sizeof() in ext2fs_open2().
   2884 
   2885 Fix type warning problem with time_t in debugfs.
   2886 
   2887 
   2888 E2fsprogs 1.38 (June 30, 2005)
   2889 ==============================
   2890 
   2891 Fix blkid's test programs (built with "make check") compile correctly
   2892 even without "configure --enable-blkid-debug".
   2893 
   2894 Fix ia64 core dump bug caused by e2fsprogs running afoul of C99 strict
   2895 type aliasing rules on newer gcc compilers.  (Addresses Red Hat
   2896 Bugzilla ##161183.)
   2897 
   2898 Fix com_err library to make it more compatible with recent changes
   2899 made to the com_err library in MIT Kerberos V5 version 1.4.
   2900 (Addresses Sourcefroge Bug #1150146)
   2901 
   2902 General cleanup of messages printed by e2fsprogs programs for grammar,
   2903 consistency, and to make life easier for translators.  Fixed a few
   2904 strings containing English that had not been marked as needing
   2905 translations.  Removed strings that do not need to be translated, to
   2906 make life easier for translators.
   2907 
   2908 Mke2fs and badblocks will take advantage of a feature in Linux 2.6 to
   2909 test to see if a device appears to be in use instead of just relying
   2910 on /proc/mounts and /etc/mtab.  (Addresses Debian Bug #308594).
   2911 
   2912 Fix portability problem in the filefrag program affecting platforms
   2913 where the size of an integer is smaller than the size of a long.
   2914 (Addresses Debian Bug #309655)
   2915 
   2916 Mke2fs will now use a larger journal by default for filesystems
   2917 greater than 4GB.  (128 MB instead of 32MB).
   2918 
   2919 Mke2fs will refuse to create filesystems greater than 2**31-1 blocks,
   2920 unless forced.  This is to avoid signed vs. unsigned kernel bugs in
   2921 block numbers that still need to be fixed.
   2922 
   2923 The blkid program has a new option which will more efficiently search
   2924 for device when it is known (or expected) that only one matching
   2925 device will be found in the system, such as when doing a lookup by
   2926 UUID.
   2927 
   2928 Debian's e2fsprogs-specific initrd fragment will avoid including
   2929 unnecessary libraries into the initrd ramdisk by unsetting LD_PRELOAD
   2930 and LD_LIBRARY_PATH, and filtering out libraries found in
   2931 /etc/ld.so.preload.  (Addresses Debian Bug: #304003)
   2932 
   2933 Fixed a potential portability issue in the blkid programs for
   2934 architectures where the char type is unsigned.  (Addresses Sourceforge
   2935 Bug: #1180585)
   2936 
   2937 Fix a bug in filefrag so that it doesn't falsely count an extra
   2938 discontinuity when the first block found is an indirect block.
   2939 (Addresses Debian Bug #307607).
   2940 
   2941 Fix blkid's recognition of cramfs filesystems, and enhance it to be
   2942 able to handle cramfs labels.
   2943 
   2944 Fix debugfs's stat command to not core dump when a filesystem is not
   2945 open.
   2946 
   2947 Fix e2fsck's handling of error conditions caused by the resize inode
   2948 claiming blocks that are also used by other inodes, a filesystem
   2949 corruption which was commonly caused by a bug in Fedora Core 3's
   2950 resize2fs program.
   2951 
   2952 Fixed bug in filefrag which caused it to fail on non-ext2/3
   2953 filesystems.  (Addresses Debian Bug: #303509)
   2954 
   2955 If the superblock last mount time indicates that the system clock may
   2956 not be accurate, then e2fsck will omit checking inodes' deletion time
   2957 field for indications of a potential corrupted orphaned inode list.
   2958 (Previously e2fsck only ommited these LOW_DTIME checks when the
   2959 superblock's last write time looked insane.)
   2960 
   2961 Fixed a IA64 core dump bug in the e2p library which affected dumpe2fs.
   2962 (Addresses Debian bug #302200)
   2963 
   2964 Make the blkid library more paranoid about being run from setgid
   2965 programs, and to use __secure_getenv() from libc if it is available.
   2966 
   2967 Fixed spelling mistakes, typos, and otherwise clarified man pages.
   2968 (Addresses Debian Bugs: #304591, #304592, #304594, #304597, #304593
   2969 and Sourceforge Bug: #1189803)
   2970 
   2971 Updated and fixed translations.
   2972 
   2973 Fixed various Debian packaging issues --- see debian/changelog for
   2974 details.
   2975 
   2976 Programmer's notes:
   2977 -------------------
   2978 
   2979 Ext2fs_set_bit(), ext2fs_clear_bit(), and ext2fs_test_bit( have been
   2980 changed to take an unsigned int for the bit number.  Negative bit
   2981 numbers were never allowed (and didn't make any sense), so this should
   2982 be a safe change.  This is needed to allow safe use of block numbers
   2983 greater than or equal to 2**31.
   2984 
   2985 The compile_et program will avoid recreating generated foo_err.c and
   2986 foo_err.h files if no changes are necessary.  The compile_et program
   2987 will also atomically replace these files to avoid a potential parallel
   2988 build race problem on SMP systems.  (Addresses Sourceforge Bug:
   2989 #1157933)
   2990 
   2991 Added a new function to the blkid library, blkid_probe_all_new(),
   2992 which only probes newly added disk devices, and change
   2993 blkid_find_dev_with_tag() to use this function so that when a
   2994 requested tag is not found, devices that were previously not checked
   2995 are searched before searching all devices in the system.
   2996 
   2997 Added new functions to the blkid library, blkid_dev_set_search() and
   2998 blkid_dev_has_tag().
   2999 
   3000 E2fsck's problem strings can now use @m and @n as abbrevations for
   3001 "multiply-claimed" and "invalid", respectively.
   3002 
   3003 The e2fsprog.pot file now has an explanation of how the @-expansion
   3004 and %-expansion works, and strings in e2fsck/problem.c which contain @
   3005 characters now have comments in e2fsprogs.pot with the @-expansion to
   3006 make life easier for translators.
   3007 
   3008 Fixed missing return values in the ext2fs library which could cause it
   3009 to return random garbage in certain error conditions.
   3010 
   3011 Allow the current time to be overriden via the E2FSCK_TIME environment
   3012 variable for use in regression tests.
   3013 
   3014 The test scrpit driver program now exits with a non-zero status if
   3015 there any of its test that it ran failed.
   3016 
   3017 Fixed problems with parabuilds on SMP systems.  (Addresses Sourceforge
   3018 Bug: #1157933)
   3019 
   3020 Fixed "make check" so that it compiles correctly even when e2fsprogs'
   3021 header files have not be installed in the system include directories.
   3022 (Addresses Sourceforge Bug: #1180572)
   3023 
   3024 Fixed gcc -Wall nits.
   3025 
   3026 
   3027 E2fsprogs 1.37 (March 21, 2005)
   3028 ===============================
   3029 
   3030 Add support for checking the validity of Extended Attributes stored in
   3031 inodes to e2fsck.
   3032 
   3033 Add support for dumping the contents of large inodes to debugfs,
   3034 including the extended attributes stored in inodes.
   3035 
   3036 Fix mke2fs, e2fsck, debugfs, and the ext2fs_mkdir function so that
   3037 when we create a new inode we make sure that the extra information in
   3038 the inode (any extra fields in a large inode and any ea-in-inode
   3039 information) is initialized correctly.  This can take place when
   3040 mke2fs creates the root and lost+found directory, when e2fsck creates
   3041 a new root inode or a new lost+found directory, and when the user uses
   3042 the debugfs write, mknod, or mkdir commands.  Otherwise, the newly
   3043 create inode could inherit garbage (or old EA information) from a
   3044 previously deleted inode.
   3045 
   3046 Fixed a bug in e2fsck so it would notice if a file with an extended
   3047 attribute block was exactly 2**32 blocks, such that i_blocks wrapped
   3048 to zero.
   3049 
   3050 Added support to filefrag to detect files which are using the new
   3051 experimental file extents format, and use the non-ext2 algorithm in
   3052 that case.  Fixed a bug to avoid reporting a false discontinuity if
   3053 there is one or more unallocated blocks at the beginning of a file.
   3054 
   3055 Duplicated a check for noticing whether or not the number of blocks
   3056 (given a certain blocksize) is greater than 2**32 when the
   3057 BLKGETSIZE64 ioctl is not available to ext2fs_get_device_size().  This
   3058 allows mke2fs to automatically use a larger blocksize when creating a
   3059 filesystem on a very large device when run on systems that do not
   3060 support BLKGETSIZE64.
   3061 
   3062 Fix the I18N build which was broken in e2fsprogs 1.36 because the
   3063 build system had been switched to treat the .gmo files as shipped
   3064 files (for backwards compatibility with systems that have older GNU
   3065 I18N tools installed), but the gen_tarball.in script was still
   3066 removing the .gmo files from the official source distribution.
   3067 
   3068 Fixed various Debian packaging issues --- see debian/changelog for
   3069 details.  (Addresses Debian Bugs ##296769, #299341)
   3070 
   3071 Programmer's notes:
   3072 -------------------
   3073 
   3074 Added new functions to the e2p library which convert between a string
   3075 and os_type: e2p_os2string() and e2p_string2os(), and used them to
   3076 make the generated binaries more compact.
   3077 
   3078 Fixed a compile-time error on Darwin systems.
   3079 
   3080 Cleaned up the lib/ext2fs Makefile slightly.
   3081 
   3082 
   3083 E2fsprogs 1.36 (February 4, 2005)
   3084 =================================
   3085 
   3086 All of the patches that were applied to Fedore Core 3's
   3087 e2fsprogs-1.35-11.2 have been integrated, although sometimes with a
   3088 lot of bug fixes first.  Users of Fedora Core 3 are strongly
   3089 encouraged to upgrade to e2fsprogs 1.36 as soon as possible.
   3090 
   3091 Add support for filesystem with the online resizing via resize inode
   3092 feature.  Fixed numerous bugs from the Fedora patches.  The Fedora
   3093 patches also didn't bother to do any consistency checking on the
   3094 resize inode, or add any tests to the regression test suite.  The "-R
   3095 resize=4g" option to mke2fs was a no-op in the Fedora patches, despite
   3096 being listed in mke2fs's usage message.  All of these shortcomings
   3097 have been corrected.
   3098 
   3099 E2fsck can also also fix filesystems trashed by Fedora's resize2fs
   3100 program.  In order to do this, the user must run the commands:
   3101 
   3102 	debugfs -w /dev/hdXXX -R "features ^resize_inode"
   3103         e2fsck -f /dev/hdXXX
   3104 
   3105 Optionally, the ext2prepare command can be used to re-enable online
   3106 resizing after the filesystem has been fixed.
   3107 
   3108 The fsck program will now accept an optional filedescriptor argument
   3109 to the -C option.  (The Fedora version of this patch would sometimes
   3110 cause fsck to ignore a parameter on fsck's command line in some rare
   3111 cases, sigh.)
   3112 
   3113 Make sure e2fsprogs doesn't write garbage into the reserved portion of
   3114 large inodes.
   3115 
   3116 Make sure resize2fs releases the blocks belonging to the old inode
   3117 table blocks when moving the inode table.  (Addresses Debian Bug:
   3118 #290894)
   3119 
   3120 Skip the r_resize_inode test if resize2fs is not compiled (due to
   3121 configure --disable-resizer)
   3122 
   3123 E2fsck now checks the summary filesystem accounting information, and
   3124 if any of the information is obviously wrong, it will force a full
   3125 filesystem check.  (Addresses Debian Bug #291571)
   3126 
   3127 Fix e2fsck to not complain when the resize_inode feature is enabled,
   3128 s_reserved_gdt_blocks is zero, and there is no DIND block allocated in
   3129 the resize inode.
   3130 
   3131 Fix e2fsck to note delete symlinks that contain an extended attribute
   3132 after the ext_attr feature flag has been cleared.  (Addresses Red Hat
   3133 Bugzilla #146284).
   3134 
   3135 Add new utility program, copy_sparse.c, which is very useful
   3136 for dealing with large sparse files (such as e2image files).
   3137 
   3138 Add support for jnl_blocks[] for debugfs's set_super_value.
   3139 
   3140 Fix filefrag so that it works correctly with sparse files.
   3141 
   3142 Filefrag -v will print first and last blocks.
   3143 
   3144 Add interpretation of OS Creator values for FreeBSD and Lites in mke2fs
   3145 and dumpe2fs.
   3146 
   3147 Add mke2fs support so that it can support filesystems larger than 4TB
   3148 automatically, by retrying with a 4k blocksize if the device size is
   3149 too big to be expressed using a 1k blocksize.  (Addresses Sourceforge
   3150 bug #1106631)
   3151 
   3152 Change blkid to test for NTFS first because Windows sometimes doesn't
   3153 clear enough of the parition to confuse the probing routines into
   3154 thinking the old filesystem type is still valid.  (Addresses Debian
   3155 Bug #291990)
   3156 
   3157 Add support for swap partition label and uuid's in the blkid library.
   3158 
   3159 Add support to the blkid library to recognize Oracle ASM volumes.
   3160 
   3161 Make blkid -t display all devices that match the specified criteria,
   3162 not just the first one, and work more consistently when the blkid
   3163 cache file is not available or set to /dev/null.  (Addresses Debian
   3164 Bug #290530 and #292425)
   3165 
   3166 Badblocks will now correctly display block numbers greater than
   3167 999,999,999 in its progress display.
   3168 
   3169 The tune2fs program will not allow the user from setting a ridiculous
   3170 number of reserved blocks which would cause e2fsck to assume the
   3171 superblock was corrupt.  E2fsck's standards for what is a ridiculous
   3172 number of reserved block has also been relaxed to 50% of the blocks in
   3173 the filesystem.
   3174 
   3175 The blkid library will return vfat in preference to msdos, and ext3 in
   3176 preference to ext2 (if the journalling flag is set) so that mount will
   3177 do the right thing.  (Addresses Debian bug #287455)
   3178   
   3179 Mke2fs will now use the -E option for extended options; the old -R
   3180 (raid options) option is still accepted for backwards compatibility.
   3181 Fix a double-free problem in resize2fs.  (Red Hat Bugzilla #132707)
   3182 
   3183 Mke2fs will now accept a size in megabytes, gigabytes, and other units
   3184 (via "32m" or "4g" on the command line) if the user finds this more
   3185 convenient than specifying a block count.
   3186 
   3187 Fix an obscure, hard-to find bug in "e2fsck -S" caused by an inode
   3188 cache conherency problem.
   3189 
   3190 Debugfs now supports a new command, set_inode_field, which allows a
   3191 user to manually set a specific inode field more conveniently, as well
   3192 as set entries in the indirect block map.
   3193 
   3194 Debugfs's set_super_value command has been enhanced so that the user
   3195 can set most superblock fields, including the date/time fields and
   3196 some of the more newsly added superblock fields.
   3197 
   3198 E2fsprogs programs now accept an offset to be passed to the file
   3199 specifiers, via the syntax: "/tmp/test.img?offset=1024".
   3200 
   3201 E2fsprogs programs will now accept blocksizes up to 65536; kernel
   3202 support on the x86 doesn't exist for now, but it can be useful on
   3203 other architectures with page sizes greater than 4k.  There are 2.6
   3204 kernel patches out there which enable this, but they are of this
   3205 writing still experimental.
   3206 
   3207 The e2image command now takes the -s option which will scramble
   3208 directory entries for raw image files.
   3209 
   3210 Fix a file descriptor leak in the filefrag program.
   3211 
   3212 Make sure e2fsck doesn't crash when /proc/acpi/ac_adapter is not
   3213 present.
   3214 
   3215 Fix bug in debugfs where kill_file would lead to errors when deleting
   3216 devices and symlinks.  (Sourceforge Bugs #954741 and #957244)
   3217 
   3218 Fix bug in the blkid library when detecting the ocfs1 filesystem 
   3219 
   3220 Remove obsolete EVMS 1.x and a.out DLL support.
   3221 
   3222 E2fsck will attempt to recover from a journal containing illegal blocks.
   3223 
   3224 Fixed two potential ordering constraint problems in e2fsck which might
   3225 cause the filesystem to be corrupted if e2fsck is interrupted during a
   3226 (extremely narrow) race window.  Thanks to Junfeng Yang from the
   3227 Stanford Metacompilation group for pointing this out.
   3228 
   3229 Fixed bug in e2fsck where it would not accurately detect whether or
   3230 not the system is running on adaptor if the ACPI device representing
   3231 the AC adapter didn't correspond to the what was used on IBM
   3232 Thinkpads.
   3233 
   3234 Change e2fsck to accept directories greater than 32MB.
   3235 
   3236 Fix e2fsck so that a checkinterval of zero disables a time-based check
   3237 of the filesystem.
   3238 
   3239 Debugfs will check the DEBUGFS_PAGER enviroment variable in preference
   3240 to the PAGER environment variable.  (Addresses Debian Bug #239547)
   3241 
   3242 Tune2fs will not mark rewrite the superblock if the feature bitmasks 
   3243 are not modified.
   3244 
   3245 The debugfs program will set the filetype information when creating a
   3246 link.
   3247 
   3248 Add debugfs -d option to use a separate source of data blocks when
   3249 reading from an e2image file.
   3250 
   3251 Add e2image -I option which allows the e2image metadata to be
   3252 installed into a filesystem.
   3253 
   3254 Fixed bug in the badblocks program which caused "done" to always
   3255 appear in english even when a translation was available.  (Addresses
   3256 Debian Bug #252836)
   3257 
   3258 The blkid program has a new option -o which controls the output format
   3259 of the blkid program; this is makes blkid more convenient to use in
   3260 shell scripts.
   3261 
   3262 Fix a minor bug in uuid library, which was not using the full 14 bits
   3263 of clock sequence when generating UUID's.
   3264 
   3265 Fix a Y8.8888K problem in the uuid library.
   3266 
   3267 Logsave now creates a new session id for itself to avoid getting
   3268 killed by init whan transitioning between init levels.
   3269 
   3270 Change the licensing of the UUID library to be the 3-clause BSD-style
   3271 license; this allows Apple to use the uuid library in Darwin.
   3272 
   3273 Add ocfs and ocfs2 probe support into the blkid library.
   3274 
   3275 Fix a memory and file descriptor leak in the blkid library.
   3276 
   3277 The blkid library will revalidate the device if the system time is
   3278 earlier than last verification time of the device, since that
   3279 indicates that the system time is probably nottrustworthy.
   3280 
   3281 The blkid library will override the default location of the blkid.tab
   3282 file by the BLKID_FILE environment variable, if it is available.
   3283 
   3284 Change the getsize functions to use the BLKGETSIZE64 ioctl on Linux 2.6.
   3285 
   3286 Add various portability fixes for lame new versions of glibc, Darwin
   3287 and GNU/KFreeBSD, as well as removing XSI:ism's.  (Addresses Debian
   3288 Bugs #239934, #264630, #269044, #255589, #289133)
   3289 
   3290 Add support for Windows 9x/NT under Cygwin.
   3291 
   3292 Updated and clarified various man pages.  (Addresses Debian Bugs #236383,
   3293 	#241940, #238741, #242995, #256669, #268148, #256760, #273679)
   3294 
   3295 Updated and fixed translations.   (Addresses Debian bugs #244105, #262836)
   3296 
   3297 Update the rpm spec files so that it works better with Fedora core 2
   3298 and RH9.
   3299 
   3300 Fixed various Debian packaging issues (see debian/changelog).  In
   3301 particular, fixed the Debian initrd scripts.  (#241183, #248050,
   3302 #253595, #247775)
   3303 
   3304 
   3305 Programmer's notes: 
   3306 -------------------
   3307 
   3308 Fixed various gcc -Wall warnings.
   3309 
   3310 The uuid library now has new functions uuid_unparse_upper() and
   3311 uuid_unparse_lower() which forces the case of the hex digits to be
   3312 upper case, or lower case.
   3313 
   3314 The build process has been speeded up by enhancing the subst program
   3315 to update the modtime on the generated files even when the generated
   3316 file hasn't changed.
   3317 
   3318 The uuid library now uses C99 stdint.h types instead of custom types.
   3319 
   3320 Updated config.guess and config.sub with newer versions from the FSF.
   3321 
   3322 Removed out of date .cvsignore files from the source distribution.
   3323 
   3324 The ext2fs_unlink() function will return an error if both the name and
   3325 inode number are unspecified, to avoid doing something surprising
   3326 (such as unconditionally deleting the first directory entry).
   3327 Directory entries are now deleted by coalescing them with the previous
   3328 directory entry if possible, to avoid directory fragmentation.  This
   3329 is not an issue with the e2fsprogs suite, but may be a problem for
   3330 some of the users of libext2fs, such as e2tools.
   3331 
   3332 Add support for version numbers of the form "1.36-rc1".
   3333 
   3334 Fix build of mke2fs.static.
   3335 
   3336 Add basic ext2fs library support for large (EA in inode) inodes.
   3337 
   3338 The test_io mechanism can now abort after n reads or writes to a
   3339 particular block.  The block is specified by TEST_IO_BLOCK environment
   3340 variable, and the read/write count by the TEST_IO_READ_ABORT and
   3341 TEST_IO_WRITE_ABORT environment variables.  The block data is now only
   3342 dumped if the 0x10 bit is set in TEST_IO_FLAGS.
   3343 
   3344 UUID_DEFINE() in the uuid library now creates a static variable, with
   3345 __attribute__ ((unused)) if we are using GCC, so that UUID_DEFINE can
   3346 be used in header files.
   3347 
   3348 Add support for the install-strip and install-shlibs-strip targets, as
   3349 suggested by the GNU coding guielines.  "make install" no longer
   3350 strips the binaries which are installed.
   3351 
   3352 Remove support for the --enable-old-bitops configure option which was
   3353 only for very old sparc systems.
   3354 
   3355 Remove support for --enable-clear-htree; this was only needed during
   3356 the early development of the htree patch.
   3357 
   3358 Use Linux-kernel-style makefile output so it is easier to see compiler
   3359 warnings.
   3360 
   3361 Update gettext files to version 0.14.1.
   3362 
   3363 Update to use autoconf 2.5x.
   3364 
   3365 Improved support for compiling e2fsprogs under dietlibc.
   3366 
   3367 Make e2fsprogs portable to Solaris and FreeBSD systems.
   3368 
   3369 Add blkid_verify(), blkid_get_library_version(), and
   3370 blkid_parse_version_string() functions to the blkid library.
   3371 
   3372 Add pkg-config files for e2fsprogs's libraries.
   3373 
   3374 Fix "make uninstall" to so that it removes everything that is installed.
   3375 
   3376 Add a configure --enable-maintainer-mode option which enables the
   3377 makefile rules to rebuild the configure script from configure.in, and
   3378 to reubuild the .gmo files in po directory.
   3379 
   3380 Drop the sparc assembly bitwise operations; it's less efficient
   3381 than the GCC 3.4 compile code and triggers compiler warnings on
   3382 sparc64.  Thanks to Matthias Andree for his analysis and suggestions.
   3383 (Addresses Debian Bug #232326)
   3384 
   3385 
   3386 E2fsprogs 1.35 (February 28, 2004) 
   3387 ==================================
   3388 
   3389 E2fsck has a new -k option, which in conjunction with the -c options,
   3390 preserves the existing badblocks list.
   3391 
   3392 Cleaned up e2fsck's preen-mode messages during the passes 1b, 1c, and 1d.
   3393 
   3394 E2fsprogs will now deal correctly with symlinks that contain
   3395 extended attribute information, which can be created using SE Linux.
   3396 (Addresses Debian Bug #232328)
   3397                                                                                
   3398 Remove a double longjump into an invalid stack frame bug in e2fsck.
   3399 (This was during an abort sequence, which normally worked on Linux and
   3400 caused a core dump on other operating systems.)
   3401 
   3402 Fix NLS bug in e2fsck, by avoiding trying to expand an empty string
   3403 (the NLS library will replace "" with the .po header information).
   3404  
   3405 Fix a bug in mke2fs which caused -T largefile or -T largefile4 to core
   3406 dump due to a division by zero error.  (Addresses Debian bug #207082)
   3407 
   3408 Fixed a bug in e2fsck which caused it to incorrectly fix a filesystem
   3409 when reconnecting a directory requires creating a lost+found
   3410 directory.  (Addresses Debian bug #219640).
   3411 
   3412 Fixed a bug where e2fsck would bomb out if a journal needed to be
   3413 replayed when using an alternate superblock.
   3414  
   3415 E2fsck will give an extra grace period before actually forcing a check
   3416 if the laptop is running on battery.  The next time fsck runs while
   3417 the system is on the AC mains, or after the grace period is exceeded,
   3418 the filesystem will be checked.  (Addresses Debian bug #205177)
   3419 
   3420 E2fsck will inform the user when there are 5 or fewer mounts before a
   3421 filesystem check will be forced.  (Addresses Debian bug #157194)
   3422 
   3423 Fix e2fsck's handling of corrupted indirect blocks in the bad block.
   3424 We now correctly handle the case where there is an overlap between a
   3425 block group descriptor or a superblock and a bad block indirect block.
   3426 In the case where the indirect block is corrupted, we now suggest
   3427 "e2fsck -c".
   3428 
   3429 Fix byte swap bugs in e2fsck that caused the journal backup location 
   3430 in the superblock and symlinks created by SE Linux to be cleared
   3431 by e2fsck on big-endian machines.  (Addresses Debian bug #228723)
   3432 
   3433 E2fsck -c now replaces the current list of bad blocks with the ones
   3434 found by badblocks.
   3435 
   3436 Fix bugs in e2fsck and tune2fs which could cause a core dump if a
   3437 non-existent LABEL or UUID specifier is to e2fsck or tune2fs.
   3438 
   3439 Fix a potential bug in e2fsck which could cause it to core dump when
   3440 trying to print the location of the backup superblock.
   3441 
   3442 Protect against a potential core dump in e2fsck when printing a
   3443 message about backup superblocks.
   3444 
   3445 Add support for backing up the journal inode location in the
   3446 superblock.  E2fsck will automatically save the journal information in
   3447 the superblock if it is not there already, and will use it if the
   3448 journal inode appears to be corrupted.  ext2fs_add_journal_inode()
   3449 will also save the backup information, so that new filesystems created
   3450 by mke2fs and filesystems that have journals added via tune2fs will
   3451 also have journal location written to the superblock as well.
   3452 Debugfs's logdump command has been enhanced so that it can use the
   3453 journal information in the superblock.
   3454 
   3455 E2fsck will now update all superblocks when moving the journal inode.
   3456   
   3457 Shrink the size of the e2fsck executable by moving some initialized
   3458 variables to the BSS segment.
   3459 
   3460 E2fsck will avoid printing the ^A and ^B characters which bracket the
   3461 progress bar when stdout and stdin are a tty device instead of a pipe
   3462 to another program.  (Addresses Debian bug #204137)
   3463 
   3464 Debugfs's mkdir command will automatically expand the directory if
   3465 necessary.  (Addresses Debian Bug: #217892)
   3466  
   3467 Fixed a bug in debugfs so that copying a file from /dev/null uses the
   3468 correct mode bits.  (Addresses Debian Bug: #217456)
   3469  
   3470 If the environment variables DEBUFS_PAGER and PAGER are not set,
   3471 debugfs now searches for the appropriate pager to use, beginning with
   3472 /usr/bin/pager, and then falling back to 'more' and 'less'.
   3473 (Addresses Debian bug #221977)
   3474 
   3475 Debugfs will now support 2.6 device numbers where the major or minor
   3476 number may be larger than 255.  (Addresses Sourceforge bug #865289)
   3477  
   3478 Fix debugging printf in resize2fs.  (Addresses Debian Bug #271605)
   3479 
   3480 Chattr now stops processing options when it sees '--'.  (Addresses
   3481 Debian bug #225188)
   3482 
   3483 Fix regression tests so they work correctly when e2fsprogs is compiled
   3484 with configure --disable-htree.
   3485 
   3486 Fix bug in uuid library when there is no network card and the library
   3487 is generating a time-based uuid.  The random MAC address was not
   3488 correctly generated to be a multicast address.
   3489  
   3490 Add compile_et extensions from Heimdall that were missed the first time
   3491 around.
   3492 
   3493 Fix bug in badblocks when using O_DIRECT; we need to make sure that
   3494 we're reading from an offset which is page aligned.  For read-only and
   3495 read-write tests, we try to recover after an error so that we can
   3496 continue reading on page-aligned boundaries.  (Addresses Debian Bug
   3497 #203713)
   3498   
   3499 Badblocks now checks 64 blocks at a time instead of 16.  (Addresses
   3500 Debian bug #232240)
   3501  
   3502 Updated and clarified various man pages.  (Addresses Debian Bug
   3503 #206845, #222606, #214920, #232406)
   3504 
   3505 Updated and fixed translations.   (Addresses Debian bugs #200086, #214633)
   3506 
   3507 Fixed various Debian packaging issues (see debian/changelog).
   3508 
   3509 Programmer's notes: 
   3510 -------------------
   3511 
   3512 Fixed a build problem so that e2fsprogs would compile with the
   3513 --enable-profile option to configure selected.  (Addresses Sourceforge
   3514 bug #811408)
   3515  
   3516 Fixed C++ problems with the ext2fs.h header.  (Addresses Red Hat
   3517 Bugzilla Bug #112448)
   3518                                                                                
   3519 Centralize code which calculates the location of the superblock
   3520 and block group descriptors so that it is in a single library routine.
   3521 
   3522 Added two new functions, ext2fs_file_open2() and
   3523 ext2fs_inode_io_intern2() which take a pointer to an inode structure.
   3524 
   3525 Fix compile_et to output the correct prototype for
   3526 initialize_xxx_err_table_r() in the header file.  (Addresses Debian
   3527 bug #204332)
   3528 
   3529 In the lib/et makefile, make sure com_err.info is deleted on "make clean".
   3530   
   3531 Fix 64-bit warnings in e2fsprogs pass1b by using inttypes.h if
   3532 present.  This is for when we try stuffing an int into void * pointer.
   3533 
   3534 Fix type-punning which can cause gcc 3.x to miscompile code by getting
   3535 confused about pointer aliasing.  ext2fs_getmem(), ext2fs_free_mem(),
   3536 and ext2fs_resize_mem() all now take a 'void *' instead of a 'void
   3537 **'.  The EVMS code uses an ugly union approach since we don't want to
   3538 modify the EVMS interfaces. 
   3539 
   3540 Make sure all Makefiles use $(MAKE) rather than hardcoded "make", to
   3541 aid build process on systems can use invoke GNU make as "gmake".
   3542 
   3543 Added regression testing for mke2fs.
   3544 
   3545 Fixed gcc -Wall nitpicks.
   3546 
   3547 Fixed various compiler warnings.
   3548 
   3549 Add portability fixes for FreeBSD and for using fsctl under Darwin to
   3550 support ext2 ioctl's.
   3551 
   3552 
   3553 E2fsprogs 1.34 (July 25, 2003)
   3554 ===============================
   3555 
   3556 Fixed a bug introduced in E2fsprogs 1.30 which caused fsck to spin in
   3557 a tight loop while waiting for a child fsck to exit in some cases.
   3558 This burns CPU times which slows down the low-level filesystem check.
   3559 
   3560 Added code to mke2fs to assure that the default block size for a
   3561 filesystem is at least as big as the sector size of the device, if it
   3562 can be determined.
   3563 
   3564 Changed mke2fs and resize2fs to round the default size of a filesystem
   3565 to be an even multiple of the VM pagesize in order to avoid a Linux
   3566 kernel bug introduced when the storage of the buffer cache was moved
   3567 into the page cache.
   3568 
   3569 Mke2fs will warn the user when creating a filesystem with journaling
   3570 and a blocksize greater than 4096.  (Addresses Debian bug #193773)
   3571 
   3572 Fixed a bug in resize2fs which caused it to fail on filesystems with a
   3573 non-empty bad block list.  Resize2fs now discards any blocks on the
   3574 badblock list which are no longer part of the filesystem as the result
   3575 of a filesystem shrink.  (Note: this means that shrinking and then
   3576 enlarging a filesystem is no longer a reversible operation;
   3577 information about bad blocks in the part of the filesystem which is to
   3578 be chopped off will be lost.)
   3579 
   3580 Changed resize2fs so the user can use prefixes to specify the units of
   3581 the new filesystem size (sectors, kilobytes, megabytes, or gigabytes),
   3582 and to make the error and informational messages explicitly display
   3583 the blocksize used by the filesystem, in order to avoid confusion.
   3584 (Addresses Debian bug: #189814)
   3585 
   3586 Added a new debugfs command, dump_unused, which dumps the contents of
   3587 all unused blocks to stdout.  (Useful as an emergency try-to-find
   3588 deleted data command.)
   3589 
   3590 Added a new debugfs command, imap, which prints the location of a
   3591 specified inode in the inode table.
   3592 
   3593 Fixed a bug in the badblocks program which caused it to use one bit of
   3594 randomness in its non-destructive read/write test, instead of using a
   3595 full 8 bits of randomness.
   3596 
   3597 Added a new option (-t) to badblocks, which allows the user to control
   3598 the test pattern(s) used when checking a disk.
   3599 
   3600 The blkid probe function now more correctly detects UDF filesystems.
   3601 
   3602 Fixed a bug in the blkid library which caused it to not update its
   3603 cache if a filesystem changes from having a label to not having a
   3604 label.
   3605 
   3606 Fixed a bug in the blkid library wihch could avoid an infinite loop
   3607 in blkid_find_dev_with_tag() if /proc is not mounted and there the
   3608 /etc/blkid.tab file has not yet been created.
   3609 
   3610 Fixed the badblocks program so that the destructive read/write test
   3611 honors the -c option, and to use O_DIRECT when possible to avoid
   3612 thrashing the system block buffer cache.
   3613 
   3614 Fixed various NLS issues.
   3615  - Added Czech and Swedish translations
   3616  - Removed testing NYC translation
   3617  - Fixed NLS support for message abbrevations in e2fsck
   3618  - Remove de-utf.po, since we shouldn't have two versions using different
   3619 	charset encodings.
   3620  - Used ngettext() (abbreivated with the macro P_(str1, str2, n)) to 
   3621 	simplify the statistics reporting in e2fsck.
   3622 
   3623 Changed configure.in so that its defaults for *BSD systems no longer
   3624 build an fsck wrapper, and not to install in /usr/local by default.
   3625 
   3626 Fixed some minor spelling errors/typo's in e2fsck and the configure
   3627 script.
   3628 
   3629 Fixed various Debian packaging issues (see debian/changelog). 
   3630 
   3631 Updated and clarified man pages.  (Addresses Debian Bug #195616)
   3632 
   3633 Programmer's notes: 
   3634 -------------------
   3635 
   3636 Fix gcc -Wall nitpicks.
   3637 
   3638 Updated gettext implementation used by e2fsprogs to 0.11.5, and enable
   3639 NLS support by default.  (Added partial workaround for gettext/Darwin
   3640 incompatibility problems.)
   3641 
   3642 Added full MIT KRB5 and Himdall compaibility support to the com_err
   3643 library and the compile_et program.  (Addresses Debian bug #191900)
   3644 
   3645 Added the blkid_known_fstype() function to the blkid library, which
   3646 returns true if it is passed a filesystem type which is recognized by
   3647 the blkid probing functions.
   3648 
   3649 Improved the documentation for the blkid library.
   3650 
   3651 Added the ext2fs_get_device_sectsize() function the the ext2fs library, which
   3652 returns the hardware sector size of a device, if it is available.
   3653 
   3654 Added a dependency in the blkid library's .so file to the uuid
   3655 library, since the former uses the latter.  (Addresses Debian bug
   3656 #194094)
   3657 
   3658 Added --with-diet-libc and --disable-evms to the configure script.
   3659 
   3660 Fixed a minor memory leak in the badblocks program.
   3661 
   3662 Fixed a portability problem in tune2fs --- not all systems have strptime().
   3663 
   3664 Fixed a portability problem in debugfs with the use of getopt() more
   3665 than once.  Old-style BSD, new-style BSD, and Linux C libraries all do
   3666 things differently.
   3667 
   3668 Add support Windows support to ext2fs_get_device_size().
   3669 
   3670 Added (normally disabled) debugging code to the Unix I/O manager which
   3671 causes it to disable all userspace caching if the NO_IO_CACHE is
   3672 defined.
   3673 
   3674 Changed the test I/O manager so it can always be linked into e2fsck,
   3675 mke2fs, and tune2fs if enabled via --enable-test-io-debug to the
   3676 configure script.  The test I/O manager will only print any debugging
   3677 information if the TEST_IO_FLAGS or TEST_IO_BLOCK environment
   3678 variables are set, which specifies which I/O operations are logged and
   3679 a block number to watch, respectively.  The log messages are sent to
   3680 stderr by default, unless a filename is specified via the
   3681 TEST_IO_LOGFILE environment variable.
   3682 
   3683 
   3684 E2fsprogs 1.33 (April 21, 2003)
   3685 ===============================
   3686 
   3687 Added a new utility program, logsave, which captures the output of a
   3688 command in a log file, even if the containing directory hasn't been
   3689 mounted yet (in which case the it saves the output in memory until it
   3690 can write out the logfile).  This is useful for capturing the
   3691 output of fsck during the boot sequence.
   3692 
   3693 Fixed some portability problems that were causing problems under
   3694 the Cygwin32 environment.
   3695 
   3696 Mke2fs now interprets a negative number to the -b option as a minimum
   3697 block size.
   3698 
   3699 Fixed a bug in mke2fs which was incorrectly checking the argument to
   3700 the -g option if the default block size was used.  (Addresses Debian
   3701 bug #188319)
   3702 
   3703 Fsck now explicitly ignores tmpfs and devpts, and it will complain if
   3704 it can not find filesystem checkers for jfs, reseirfs, and xfs.
   3705 
   3706 E2fsck now updates the global free block and inode counters from the
   3707 block group specific counters quietly.  This is needed for an
   3708 experimental patch which eliminates locking the entire filesystem when
   3709 allocating blocks or inodes; if the filesystem is not unmounted
   3710 cleanly, the global counts may not be accurate.
   3711 
   3712 Imported bug fixes to the EVMS plugin from the EVMS 2.0 tree.  (EVMS
   3713 2.0 is not yet supported; this only pulled in the bug fixes: fixed
   3714 possible hangs caused by bugs in calling waitpid, and not setting the
   3715 pipe to non-blocking mode; also fixed a file descriptor leak; made
   3716 sure all functions call log entry/exit functions.)
   3717 
   3718 Badblocks now flushes its output file as bad blocks are discovered.
   3719 
   3720 The uuid library is now more paranoid about assuming the correctness
   3721 of the /dev/random device; it mixes in a stream of bytes from
   3722 random/srandom, just in case.
   3723 
   3724 Update Debian files to reflect the fact that I am now the Debian
   3725 maintainer of e2fsprogs.  Other various Debian-specific packaging
   3726 cleanups.
   3727 
   3728 Move the source tarball generation functions from the top-level
   3729 makefile to the util/gen-tarball script.  
   3730 
   3731 Updated the Turkish .po translation file.
   3732 
   3733 Added Heimdal and MIT krb5 extensions to the com_err library to make
   3734 it more compatible with com_err libraries from those distributions.
   3735 
   3736 Changed dumpe2fs to always display the superblock fields relating to
   3737 the journalling and/or directory indexing feature even if those
   3738 features are not enabled.
   3739 
   3740 Updated and clarify copyright statement vis-a-vis alpha releases of
   3741 e2fsprogs.
   3742 
   3743 The ss library will now try to dynamically link to the readline
   3744 library and use it if it is present in the system.  This means that
   3745 the debugfs program now has line editing and history features.  The
   3746 SS_READLINE_PATH environment variable is used to find a readline or
   3747 readline-compatible library.
   3748 
   3749 E2fsck now finds most duplicate filenames (all when rebuilding all
   3750 directories via the -D option) and offers to delete or rename
   3751 duplicate filenames/directory entries.  (Addresses Debian Bug #176814).
   3752 
   3753 Fix bug in e2image.  When writing out a raw image file, include data
   3754 blocks from symlinks that do not store the symlink within the inode.
   3755 
   3756 Fix bug in resize2fs which incorrectly moved the block and inode
   3757 bitmaps for sparse superblock filesystems and incorrectly marked
   3758 blocks as in use.  (Addresses Debian bug #174766)
   3759  
   3760 Added a new shared library, the blkid library, which efficiently
   3761 allows fsck, mke2fs, e2fsck, and tune2fs to be able to look up LABEL
   3762 and UUID filesystem specifiers without needing to search all of the
   3763 devices in the system.  Instead, the device is looked up in a cache
   3764 file, and then verified to make sure the blkid cache is correct.
   3765 
   3766 Tune2fs and e2label will accept LABEL=xxx and UID=yyy specifiers for
   3767 the device name, using the blkid library.  (Addresses Debian bugs
   3768 #166048, #179671)
   3769 
   3770 Fsck now supports backslash escapes in /etc/fstab so that \040 can be
   3771 used for spaces in device labels.
   3772 
   3773 Removed 32-bit limitations for debugfs's dump command.
   3774 
   3775 If the user specifies a large number of inodes, Mke2fs will
   3776 automatically adjust the number of blocks per group to find a valid
   3777 set of filesystem parameters.
   3778 
   3779 Add workaround to detect broken MD devices where when some of the
   3780 underlying devices are marked read-only, writes to the MD device are
   3781 silently dropped.  E2fsck will detect if there is an attempt to run
   3782 the journal twice, and abort with an error if this is the case.
   3783 (Addresses IBM Bugzilla bug #1226)
   3784 
   3785 E2fsck will print an error if more than one of the -p/-a, -n or -y
   3786 options are specified.
   3787 
   3788 E2fsck will fix HTREE corruptions in preen mode, without stopping the
   3789 boot process.  This is needed because the 2.4 ext2 filesystem
   3790 accidentally had the INDEX_FL backwards compatibility code removed.
   3791 
   3792 Mke2fs no longer creates filesystems with the dir_index flag set by
   3793 default; the user has to specifically request it.
   3794 
   3795 Update and clarified various man pages. (Addresses Debian bugs
   3796 #173612, #175233, #175113, and #170497, #185945, #188318)
   3797 
   3798 Created man page for the mk_cmds program (from the libss library).
   3799 
   3800 Programmer's notes: 
   3801 -------------------
   3802 
   3803 Fix various gcc -Wall nits.
   3804 
   3805 Fixed a lot of portability problems that caused e2fsprogs not to build
   3806 successfully under Solaris and Apple/Darwin.
   3807 
   3808 Fixed a Makefile dependency to allow building e2fsprogs using parallel
   3809 make jobs.
   3810 
   3811 Changes to create a subset distribution which consists only of the
   3812 et, ss, uuid, and blkid libraries.  The configure script and top-level
   3813 makefile were changed to support working with a subset distribution.
   3814 
   3815 Removed EXT2_FEATURE_RO_COMPAT_BTREE_DIR mention of since it's not
   3816 actually used, and might people who are looking for
   3817 EXT2_FEATURE_COMPAT_DIR_INDEX, which is in use.
   3818 
   3819 Updated debian files to fix a number of Lintian warnings.
   3820 
   3821 Updated config.guess and config.sub with newer versions from the FSF.
   3822 
   3823 Removed unnecessary libraries from being linked into the fsck, lsattr, 
   3824 chattr, and blkid executables.
   3825 
   3826 E2fsprogs 1.32 (Nomvember 9, 2002)
   3827 ==================================
   3828 
   3829 Fixed a bug in the Unix I/O routines which caused needless writebacks
   3830 of clean blocks from the unix_io cache (they were erroneously marked
   3831 as being dirty, so they were getting written back to disk before
   3832 getting evicted from the disk cache).  This was harmless, but it
   3833 significantly slowed down e2fsck.
   3834 
   3835 Made some other minor optimizations to the Unix I/O routines to save a
   3836 small amount of CPU time.
   3837 
   3838 Updated internationalization files.
   3839 
   3840 
   3841 E2fsprogs 1.31 (Nomvember 8, 2002)
   3842 ==================================
   3843 
   3844 Update EVMS ext2fsim plugin with EVMS 1.2.  (We still support
   3845 compiling the fsim plugin with EVMS 1.0 and 1.1.)  Add better error
   3846 handling for child process that die unexpectly.  Add a hack to force
   3847 mkfs to create filesystems that won't cause problems with hardware
   3848 that has 2k or 4k minimum blocksize requirements.  Read from child
   3849 processes in non-blocking mode, so that the GUI continues to update.
   3850 
   3851 Fix e2fsck so that it returns the appropriate exit code when the root
   3852 filesystem has been changed, so that system's rc scripts will be told that 
   3853 the system needs to be rebooted.
   3854 
   3855 Fix a bug in ext2fs_flush/ext2fs_close; when the MASTER_SB_ONLY flag
   3856 was set, some of the descriptor blocks that should have been written
   3857 out were getting skipped.
   3858 
   3859 Changed e2fsck to force out changes to the backup copies of the
   3860 superblock and block group descriptors when important changes are made
   3861 to those data structures.
   3862 
   3863 Fix a bug where e2fsck could erroneously mark a filesystem as being
   3864 clean if a check of dirty filesystem is interrupted with a ^C.  (Bug
   3865 introduced in e2fsprogs 1.28.)
   3866 
   3867 If journal debuging is enabled using --enable-jbd-debug, the debugging
   3868 level is now set via the E2FSCK_JBD_DEBUG environment variable.
   3869 
   3870 If byteswapping support is disabled using configure --disable-swapfs,
   3871 skip the tests which depend on byte-swapping, so that "make check"
   3872 won't bomb out.
   3873 
   3874 Lshattr will now display the indexed directory flag.  Also, some of
   3875 the more esoteric compression flags are supressed unless compression
   3876 support has been enabled.
   3877 
   3878 Update man pages.
   3879 
   3880 
   3881 E2fsprogs 1.30 (October 31, 2002)
   3882 =================================
   3883 
   3884 When resizing a filesystem, and inodes need to moved, resize2fs will
   3885 update the inode's ctime field, and the mtime field of the containing
   3886 directories, so that incremental backups using dump/restore will work
   3887 correctly.
   3888 
   3889 In order to avoid spurious errors, e2fsck wil check the last
   3890 superblock write time to determine whether or not it can safely use
   3891 the LOW_DTIME checks to determine if there are inodes on the orphan
   3892 inode linked list that had somehow gotten disconnected.  (Addresses
   3893 Sourceforge bug #620980)
   3894 
   3895 Partition in /proc/partitions that being with the string "lvm" are
   3896 considered real partitions even if they do not end with a number.
   3897 
   3898 Fixed a bug in the the uuid generation function, where if /dev/urandom
   3899 is not present, but /dev/random is, and there isn't sufficient
   3900 entropy, the get_random_byte function could spin a loop forever.
   3901 
   3902 E2fsck, mke2fs, etc. will now reliably notice when image files are
   3903 mounted using the loopback interface.  (Addresses Sourceforge bug
   3904 #619119)
   3905 
   3906 When flushing buffers (as is done by badblocks, for example) check to
   3907 see if the BLKFLSBUF ioctl succeeds, and if so, avoid using the
   3908 FDFLUSH ioctl which causes the MD device driver which causes confusing
   3909 syslog messages about obselete ioctl messages.  (Addresses Sourceforge
   3910 bug #545832).
   3911 
   3912 Debugfs's write command now checks to see if the destination filename
   3913 exists before creating it.  (Addresses Sourceforge bug #478195.)
   3914 
   3915 When installing man pages, search for compressed man pages using all
   3916 commonly used compression extensions (i.e., .Z, .gz, .bz2, etc.)
   3917 
   3918 Fixed a bug in fsck where multiple filesystems specified on the
   3919 command were not being checked in parallel due to a logic bug
   3920 introduced to support the FSCK_MAX_INST environment variable.
   3921 
   3922 We have added a new superblock field, s_mkfs_time, which indicates
   3923 when a filesystem was created.  It is set via mke2fs, and printed out
   3924 by dumpe2fs, but is not actually touched by the kernel.
   3925 
   3926 Dumpe2fs has been made more robust by not aborting if there is an
   3927 error reading the block/inode bitmaps; instead it will still print out
   3928 the location of the block/inode bitmaps and inode table.
   3929 
   3930 Add support for the an alternative block group descriptor layout which
   3931 allows for on-line resizing without needing to prepare the filesystem
   3932 in advance.  (This is the incomat feature flag meta_bg.)
   3933 
   3934 Add support for storing default mount options in the superblock, so
   3935 that the filesystem can be mounted with specific mount options without
   3936 needing to specify them on the mount command line or in the /etc/fstab
   3937 file.
   3938 
   3939 Add support for a new inode flag, which is to be used for indicating
   3940 the top of directory hierarchies for the Orlov block allocator.
   3941 
   3942 Fix e2fsck so that if it creates the lost+found directory, it does so
   3943 with the more apporpriate permissions of 0700.  Also change
   3944 mklost+found so that it also creates the directory 0700.
   3945 
   3946 Fixed format bug in e2fsck if NLS is in use.
   3947   
   3948 Add a German translation for e2fsprogs's NLS support.
   3949 
   3950 Fixed e2fsck so that it more handles BAD_BLOCK_IN_INODE_TABLE even at
   3951 the beginning of the inode table.  This won't matter much, since if
   3952 there is a bad block at the beginning of the inode table, the root
   3953 directory won't be available.  But at least e2fsck won't crash in this
   3954 case.
   3955 
   3956 Fixed endian problems in the htree code for e2fsck and debugfs.
   3957   
   3958 When byte-swapping a filesystem on a PPC architecture, byte-swap the
   3959 bitmaps since the historical big-endian ext2 variant had byte-swapped
   3960 bitmaps, and the ext2fs library assumes this.  This fixes the
   3961 regression test suite on PPC machines.
   3962 
   3963 Fix e2image so that it handles a bad block in the inode table
   3964 appropriately.
   3965 
   3966 E2fsck now uses a more sophisticated algorithm to salvage corrupted
   3967 directories that recovers more information in the corrupted directory
   3968 block.
   3969 
   3970 E2fsck now performs additional consistency checks on indexed (HTREE)
   3971 directories.
   3972 
   3973 Fix bug where efsck might get confused about whether a completely
   3974 empty directory block is an empty leaf block or an interior htree
   3975 node.  This could cause e2fsck to get confused into think that a valid
   3976 indexed directory was corrupted.
   3977 
   3978 E2fsck no longer creates an empty directory entry at the end of a
   3979 directory block when optimizing a directory.  This would cause some
   3980 earlier versions of the dxdir kernel code to corrupt the directory
   3981 when attempting to split a node containing an empty directory entry.
   3982 
   3983 E2fsck could sometimes in rare circumstances leave the indexed flag
   3984 set after a small directory was optimized by compressing it instead of
   3985 indexing it.  (This should never happen in real life, since
   3986 directories that small wouldn't have been indexed, but better safe
   3987 than sorry.)
   3988 
   3989 E2fsck now only updates the master superblock in all cases.  This
   3990 slightly shortens its run time.
   3991 
   3992 Ext2ed can deal with directory entries of length 0; previously it
   3993 would get stuck in an infinite loop.
   3994 
   3995 Fsck now has support for reiserfs volumes when parsing LABEL= and UUID=
   3996 specifiers.  (Sourceforge patch #613447)
   3997 
   3998 Badblocks will now work correctly on read-only devices such as
   3999 CD-ROM's.  (Sourceforge patch #600451)
   4000 
   4001 Updated and clarified man pages.  (Addresses Debian bug #167108)
   4002 
   4003 
   4004 E2fsprogs 1.29 (September 24, 2002)
   4005 ===================================
   4006 
   4007 Fixed a bug in e2fsck which could corrupt a directory when optimizing
   4008 it (via the -D option) or rebuiliding the hash tree index with a 1 in
   4009 512 probability, due to a fence post error.
   4010 
   4011 Fixed a bug in the LVM support code which caused LABEL='xxx' not to
   4012 work correctly.
   4013 
   4014 Mke2fs now enables the directory indexing flag by default.  (Since
   4015 this is a compatible feature flag, it's safe to do so.)
   4016 
   4017 Tune2fs will support setting the directory indexing feature flag.  It
   4018 will automatically set up the default hash algorithm and hash seed
   4019 fields in the superblock.
   4020 
   4021 If the bone-headed user enters the root filesystem twice in
   4022 /etc/fstab, the -R option which skips the root filesystem will skip
   4023 all of them.  (Addresses Debian bug #159423).  Note!  This is not a
   4024 precedent for dealing intelligently with any other kind of doubled
   4025 entry in /etc/fstab!
   4026 
   4027 
   4028 Programmer's notes: 
   4029 -------------------
   4030 
   4031 Removed perror declaration in lib/et/internal.h.  All modern systems
   4032 can be expected to define perror() these days.  Besides, the lib/et
   4033 code wasn't using perror at all anyway.  :-)
   4034 
   4035 
   4036 E2fsprogs 1.28 (August 31, 2002)
   4037 ================================
   4038 
   4039 Add support for the Hashed-Tree Directory Indexing to e2fsck.  Support
   4040 for setting the htree flag is not included yet, although it can be
   4041 manually turned on via the debugfs program.
   4042 
   4043 Clarified e2fsck error message which is printed when it cannot find
   4044 sufficient contiguous block when relcating filesystem metadata.
   4045 
   4046 Added support for building an EVMS plugin module for ext2/3.  This
   4047 module is substantially the same as the EVMS module shipping with EVMS
   4048 1.1, with one or two bugfixes.  E2fsprogs can also build this plugin
   4049 for use with EVMS 1.0 (which did not include the ext2 plugin module),
   4050 if the configure --enable-old-evms flag is given.
   4051 
   4052 Fsck will search through EVMS volumes when trying to resolve
   4053 filesystem specifications such as LABEL=xxx or UUID=xxx.
   4054   
   4055 Added a new utility program, /sbin/findfs, which will return
   4056 filesystem specifications such as LABEL=xxx or UUID=xxx, and prints
   4057 the device name.
   4058 
   4059 Update and clarified various man pages. (addresses Debian Bug #145044,
   4060 #146437, #131350, #151990, #144621, #141938)
   4061 
   4062 If there are no filesystems specified on fsck's command line, fsck now
   4063 treat that as if the -As options were given.  Previously it would
   4064 simply do nothing.  (Addresses Debian Bug #153102)
   4065 
   4066 Mke2fs no longer treats a failure to be able to clear the MD signature
   4067 at the end of the filesystem as a fatal error.  (Addresses Debian Bug
   4068 #155007)
   4069 
   4070 The e2p library functions (which are used by lsattr and chattr) now
   4071 double check to make sure the file is a regular file or directory
   4072 before attempting to use the ext2 ioctls.  Some device drivers
   4073 unfortunately respond to the ext2 ioctl's with unknown behaviour.
   4074 (Addresses Debian Bug #152029).
   4075 
   4076 The extended attribute handling has been updated to correspond with
   4077 the latest V2 bestbits ACL code.
   4078 
   4079 Fixed bug in e2fsck which caused it to not clear the dtime field when
   4080 processing truncated inodes on the orphan list.  This could cause data
   4081 loss(!) if a filesystem is rebooted before a truncate has been
   4082 committed.
   4083 
   4084 E2fsck now uses red/black trees in pass1b, which removes some O(n**2)
   4085 algorithms.  This makes e2fsck much faster in the case of severely
   4086 corrupted filesystems where a large number of blocks are claimed by a
   4087 large number of inodes.  (Thanks to the 2.5 IDE device driver for
   4088 inspiring this work.)
   4089 
   4090 Resize2fs has been significantly sped up when shrinking and expanding
   4091 a filesystem by a very small number of blocks (for example, when EVMS
   4092 is converting a partition to be an EVMS legacy volume).
   4093 
   4094 Added a new option to e2fsck, -D, which will optimize or compress all
   4095 of the directories in the filesystem.
   4096 
   4097 E2fsck now catches SIGINT and SIGTERM to make sure it will can
   4098 properly clean up and only exit at safe points.  Fsck will pass
   4099 SIGINT/SIGTERM to its child processes, and wait until they have all
   4100 exited before it exits.
   4101 
   4102 The uuid parsing code in the uuid library now properly complains when
   4103 an illegally formated uuid is presented to it.  (Addresses Debian bug
   4104 #152891)
   4105 
   4106 Restrict use of the 2.4 setrlimit ABI f*ckup to kernels between 2.4.10
   4107 and 2.4.17, since the workaround can cause problems when using a 2.4
   4108 kernel with an old version of glibc built with the 2.2 headers.
   4109 
   4110 Fixed a bug in mke2fs where it wasn't properly clearing the initial
   4111 superblock used by other filesystems.  (Addresses Debian bug #147256.)
   4112 
   4113 Added support for the synchronous directory feature written by Andrew
   4114 Morton.
   4115 
   4116 The debugfs program can delete directories using the rmdir command.
   4117 
   4118 Add support for 8k and 16k filesystems (for systems with page sizes
   4119 that are greater or equal to 8k or 16k, respectively).  Note that
   4120 these filesystems can not be mounted on x86 systems, or other systems
   4121 with only 4k page sizes, due to limitations in the current Linux VM
   4122 code.
   4123 
   4124 Resize2fs requires that the filesystem state be valid and have no
   4125 errors; otherwise, e2fsck -f must be run first.  (Previously it simply
   4126 required that the last fsck time be greater than the last mount time.)
   4127 
   4128 Configure now defaults the man pages directory to /usr/share/man on
   4129 Linux systems.
   4130 
   4131 E2fsck now offers to truncate inodes which contain too many blocks (so
   4132 that i_blocks would overflow.  Also fixed handling of large sparse
   4133 files.
   4134 
   4135 E2fsck now more completely checks for symlink validity, including
   4136 requiring NULL termination and length checks.
   4137 
   4138 E2fsck will offer to try forcing a disk write to remap a bad block
   4139 after finding a read error when reading a filesystem metadata block.
   4140 
   4141 Fixed a bug in debugfs which caused the -b and -s options to crash
   4142 debugfs, as well as breaking the testb, setb, and clearb functions.
   4143 
   4144 Added a bmap command to debugfs which calculates the logical to
   4145 physical block mapping for a particular inode.
   4146 
   4147 Fixed a bug in code which checked to see if a device was mounted which
   4148 sometimes (rarely) failed in the case of a plain file.
   4149 
   4150 Fixed a bug in resize2fs where when it reported an error, it would
   4151 print a message erroneously indicating that the filesystem had been
   4152 resized before it aborted.
   4153 
   4154 When resizing a plain file which is smaller than the requested size,
   4155 resize2fs will attempt to extended the file so that programs like
   4156 e2fsck will not complain that the file is too small.
   4157 
   4158 Resize2fs will print the actual new size of the filesystem when it is
   4159 finished resizing.
   4160 
   4161 Fixed a bug in debugfs where "ls -l" would report incorrectl file type
   4162 information on big-endian systems.
   4163 
   4164 
   4165 Programmer's notes:
   4166 -------------------
   4167 
   4168 Fixed collisions with C++ reserved words.
   4169 
   4170 Added portability fixes for building e2fsprogs on the HURD and AIX.
   4171 
   4172 Added the ext2ed program for creation of test cases.  (ext2ed has many
   4173 limitations and bugs which make it unsuitable for production use.)
   4174 
   4175 The ext2fs_read_dir_block2 and ext2fs_write_dir_block now take a new
   4176 flag, EXT2_DIRBLOCK_V2_STRUCT, which will will reverse when the
   4177 name_len field is byte swampped on big-endian machines, since in the
   4178 V2 structure, name_len is a char field which is doesn't need to be
   4179 byte swapped --- except if an old-style kernel had byte-swapped the
   4180 name_len field as part of the V1 structure.
   4181   
   4182 
   4183 E2fsprogs 1.27 (March 8, 2002)
   4184 ==============================
   4185 
   4186 The warning messages for mke2fs now go to standard error.
   4187 
   4188 Fixed to make sure "make check" runs all of the test programs with
   4189 LD_LIBRARY_PATH set, so that we test the libraries in the build tree.
   4190 
   4191 The mke2fs program checks the boot sector for the BSD disk label, and
   4192 avoids erasing it if it is there.
   4193 
   4194 Fixed a bug in e2fsck which caused it to core dump if the journal
   4195 inode was missing when it was supposed to be there.
   4196 
   4197 E2fsck now prints ranges in pass 5 when printing deltas for the block
   4198 and inode bitmaps.
   4199 
   4200 Debugfs's "ls -l" command now will print out the file type information
   4201 in the directory entry.
   4202 
   4203 Create man pages and hard links for fsck.ext3 and mkfs.ext3.  If
   4204 mke2fs is invoked as mkfs.ext3, create the filesystem with a journal.
   4205 
   4206 Debugfs can now examine the experimental directory indexing
   4207 information.
   4208 
   4209 Fixed bug in debugfs which caused it to core dump if modify_inode is
   4210 called without an open filesystem.
   4211 
   4212 The debugfs lsdel command now runs its output through a pager first.
   4213 
   4214 When installing manual pages, remove the compressed manual pages first.
   4215 
   4216 Synchronized with Debian's packaging information for e2fsprogs-1.26-1.
   4217 
   4218 Fix the 2.4 resource limitation workaround introduced in 1.26 which
   4219 actually broke things on mips32, sparc32, and Alpha platforms.
   4220 
   4221 Updated the I18N code so that calls to setlocate(LC_CTYPE, 0) are made
   4222 (which is required by the newer libintl libraries).
   4223 
   4224 Programmer's notes:
   4225 -------------------
   4226 
   4227 Fixed various gcc -Wall complaints.
   4228 
   4229 Fixed a few memory leaks in the e2fsck journaling code, and in the
   4230 ismounted code checking for a swap device.
   4231 
   4232 Add new inode I/O abstraction interface which exports an inode as
   4233 an I/O object.
   4234   
   4235 Exported ext2_file_flush as a public interface.
   4236   
   4237 In ext2_file_write, we now mark the buffer void * argument as a const, since ext2_file_write doesn't modify the buffer.
   4238 
   4239 Lots of small random portability fixes to make e2fsprogs build under
   4240 AIX --- even without the 5L compatibility toolkit, and even using the
   4241 uber-crippled AIX native C compiler.
   4242 
   4243 
   4244 E2fsprogs 1.26 (February 3, 2002)
   4245 =================================
   4246 
   4247 Dumpe2fs will keep going now if the bad block inode can't be read.
   4248 (Previously it stopped with a fatal error.)
   4249 
   4250 E2fsck will now give an opportunity to run the journal even if the
   4251 recovery flag is not set.  This is the default behaviour if e2fsck is
   4252 using a backup superblock, since the needs_recovery flag will never be
   4253 set in the backup superblock copies.
   4254 
   4255 E2fsck now automatically finds the backup superblock/group descriptors
   4256 even when the primary superblock is completely destroyed for 2k and 4k
   4257 filesystems.  (Previously it just guessed/assumed that we were dealing
   4258 with a 1k filesystem in that case, and users had to manually specify
   4259 the backup superblock number.)
   4260 
   4261 Fixed a bug in e2fsck where it dereferences a null pointer when there
   4262 is a problem opening a filesystem in preen mode.
   4263 
   4264 E2fsck now handles external journals correctly; previously it trashed
   4265 the external journal device if the journal needed to be replayed.
   4266 
   4267 Work around ulimit incompatibility problem caused by recent 2.4
   4268 kernels; the unix IO module will automatically try to set any resource
   4269 limits to be infinite on startup.
   4270 
   4271 Fixed a bug in e2fsck where it wasn't allocating a new block or inode
   4272 bitmap if it wasn't present and the blocksize was 2k or 4k.
   4273  (Addresses Debian Bug #116975)
   4274 
   4275 E2fsck will check and fix botched ext3 V1 to V2 superblock updates by
   4276 clearing the new V2 fields if they do not make sense or if the ext3
   4277 superblock is version 1 superblock.
   4278 
   4279 E2fsck will automatically relocate the ext3 journal from a visible
   4280 file (i.e., /.journal) to an hidden inode if the filesystem has been
   4281 opened read/write.  This allows the users to add a journal while the
   4282 filesystem is mounted, but the next time the system is rebooted, the
   4283 journal file will disappear.  This avoids problems with backups,
   4284 stupid operators with superuser bits, etc.
   4285 
   4286 Fix a bug in fsck where it would not support a filesystem type of
   4287 "auto" if the device was specified in terms of LABEL=xxx or UUID=xxx.
   4288 
   4289 Fsck now supports fstab entries of the form "ext3,ext2".  It will also
   4290 automatically identify reiserfs filesystems.
   4291 
   4292 The number of processes spawned by fsck can now be limited using the
   4293 FSCK_MAX_INST environment variable.
   4294 
   4295 Fsck now searchs the LVM proc hierarchy to find logical volumes which
   4296 should be searched for  UUID and label information.
   4297 
   4298 Work around a bug in 2.4.10+ kernels by trying to unset the filesize
   4299 limit if at all possible, when opening a block device.  (The filesize
   4300 limit shouldn't be applied against writes to a block device.)
   4301 
   4302 In mke2fs and e2fsck, specifying the -c option twice will now do
   4303 a read/write test on the disk.  Update the man pages to encourage
   4304 using the -c option, and to discouraging running badblocks separately,
   4305 since users tend to forget to set the blocksize when running 
   4306 badblocks.
   4307 
   4308 Mke2fs now automatically clears the immutable attribute on a
   4309 pre-existing .journal file left over from a previous failed attempt to
   4310 add a journal to an alreadyy-mounted filesystem.
   4311 
   4312 Fixed mke2fs's exit codes to consistently indicate when the mke2fs
   4313 operation failed.
   4314 
   4315 Mke2fs now creates the lost+found directory with permissions of 0700,
   4316 so that files that had previously lived in protected directory are
   4317 safe if they get dropped in lost+found and the system administrator
   4318 doesn't deal with immediately.  (Addresses Debian #bug 118443)
   4319 
   4320 Mke2fs and e2fsck (and all programs that use the
   4321 ext2fs_check_if_mounted function) will now properly identify that a
   4322 device is mounted, even in cases where devfs has confused things with
   4323 multiple devices names with the same identity, or if a dim-witted
   4324 system administrator has done something stupid like creating device
   4325 file aliases in their home directory.  Also now checks for swap devices
   4326 by using /proc/swaps.  (Addresses Debian bug #106622)
   4327 
   4328 Added a new option (-T) to tune2fs which sets the time a filesystem
   4329 was last checked.
   4330 
   4331 Speed up e2image when creating sparse raw image files by optimizing
   4332 away excess lseek() system calls.
   4333 
   4334 Fix support of large (> 2GB) files when used as a filesystem in
   4335 mke2fs, tune2fs, debugfs, and findsuper.
   4336 
   4337 Debugfs's stat and icheck commands now properly deals with large (>
   4338 2GB) files.
   4339 
   4340 Debugfs's set_super_value command now prints out the list of valid
   4341 superblock fields which can be set using the command.
   4342 
   4343 Debugfs's rm and kill_file command now updates the superblock free block
   4344 and inode counts, thus keeping the filesystem consistent.
   4345 
   4346 Debugfs's lsdel command now takes an optional argument which allows
   4347 the user to only see the most recently deleted files.
   4348 
   4349 A new command (undel) was added to debugfs which automates
   4350 undeleting a deleted inode and linking it back to a directory.
   4351 
   4352 Debugfs's ls command now takes a new option, -d, which lists 
   4353 deleted directory entries.
   4354 
   4355 Debugfs's testb, freeb, setb, and find_free_block commands now take an
   4356 optional count argument.
   4357 
   4358 Add support for a new ext2 file attribute, EXT2_NOTAIL_FL, which will
   4359 be used to signal that a particular inode should not be eligible for
   4360 tail-merging --- this is needed for programs like LILO.
   4361 
   4362 The findsuper (an unreleased, uninstalled utility program) has been
   4363 improved to add extra validity checks and to add a progress meter.
   4364 (It is still an unsupported program; the officially supported way to
   4365 recover from a trashed partition table is to use gpart; findsuper is
   4366 for wizards only.  :-)
   4367 
   4368 Debugfs was fixed to compile with "configure --disable-swapfs".
   4369 
   4370 Cleaned up various manual pages.   (Addresses Debian bug #119624, #120171)
   4371 
   4372 Added new translation file for Turkish.
   4373 
   4374 Programmer's notes:
   4375 -------------------
   4376 
   4377 Fix general gcc -Wall complaints.
   4378 
   4379 E2fsprogs (mostly) works with the dietlibc.
   4380 
   4381 The programming texinfo file has been expanded to include description
   4382 of additional libext2fs functions.  (Still not compeltely done, but a
   4383 lot of the more important functions have been documented.)
   4384 
   4385 Added a umask structure to struct_ext2_filsys, which currently only
   4386 modifies the behaviour of ext2fs_mkdir(), but if we add any file
   4387 creation functions to libext2fs, we should also make sure they respect
   4388 the umask setting.
   4389 
   4390 The build-rpm script was fixed to be a bit more safe.
   4391 
   4392 The tests' Makefile now has a way of automating test case creation 
   4393 for e2fsck, using "make testnew".
   4394 
   4395 Created a new function, ext2fs_dir_iterate2 which passes more
   4396 information to the callback function (identical to the one used by
   4397 ext2fs_dblist_dir_iterate).  The directory iterator functions take a
   4398 new flag, DIRENT_FLAG_INCLUDE_REMOVED, which will return deleted
   4399 directory entries.  If the directory entry is deleted, the callback
   4400 function will be called with the entry paraemter set to
   4401 DIRENT_DELETED_FILE.
   4402   
   4403 Added new functions, ext2fs_inode_alloc_stats and
   4404 ext2fs_block_alloc_stats, which takes updates block/inode allocation
   4405 statistics in the bitmaps, block group descriptors, and superblock
   4406 when inodes or blocks are allocated or deallocated.
   4407 
   4408 
   4409 E2fsprogs 1.25 (September 20, 2001)
   4410 ===================================
   4411 
   4412 This is primarily a bug-fix release; no new features were added, but
   4413 there are a number of embarassing bug fixes and cleanups applied.
   4414 
   4415 Fix a bug mke2fs which causes stack garbage to be written to disk when
   4416 zapping disk sectors.  (This bug could cause mke2fs to core dump for
   4417 some kernels, I suspect with security enhancement patches.)
   4418 
   4419 Remove unneeded #include of <linux/config.h> which was breaking
   4420 building e2fsprogs on the Hurd.  (Addresses Debian bug #112414.)
   4421 
   4422 Updated tune2fs man page to reflect the fact that adding or removing a
   4423 journal doesn't require running e2fsck.
   4424 
   4425 Remove use of AC_REQUIRE from autoconf which had been used to prevent
   4426 AC_CANONICAL_HOST from being called twice; unfortunately this causes
   4427 recent autoconf to bomb out since they don't allow AC_REQUIRE to be
   4428 used outside of autoconf macros.  Fortunately, it doesn't seem to be
   4429 necessary any more, anyway.
   4430 
   4431 E2fsck will now not fall back to an alternate superblock if the user
   4432 specifies the superblock location explicitly on the command-line.
   4433 This allows easier recovery from a situation where the primary
   4434 superblock and block groups are slightly corrupted, but the backup
   4435 superblocks are completely broken.  
   4436 
   4437 Fix problem which caused compile_et and mk_cmds to blow up if
   4438 e2fsprogs was in a directory with a pathname that contained spaces.
   4439 
   4440 We are now more paranoid about checking the entry in /etc/mtab to make
   4441 sure the filesystem is really mounted, since some broken distributions
   4442 (read: Slackware) don't initialize /etc/mtab before checking non-root
   4443 filesystems.  (Slackware also doesn't check the root filesystem
   4444 separately, and reboot if the root filesystem had changes applied to
   4445 it, which is dangerous and broken, but there's nothing I can do about
   4446 that.)
   4447 
   4448 Make UUID library C++ friendly by adding appropriate extern "C"
   4449 declarations and using const in the function declarations.
   4450 
   4451 Fix up the com_err texinfo file so that it can product a valid info
   4452 file (previously, it could only be used to generate paper
   4453 documentation using texinfo.tex).
   4454 
   4455 
   4456 E2fsprogs 1.24a (September 2, 2001)
   4457 ===================================
   4458 
   4459 Fix brown-paper bug in mke2fs which caused it to segfault when
   4460 printing the version string.
   4461 
   4462 
   4463 E2fsprogs 1.24 (August 30, 2001)
   4464 ================================
   4465 
   4466 Revert the BLKGETSIZE64 support, since for some distributions, this
   4467 ioctl has been used by an unofficial kernel patch to update the last
   4468 sector on the disk, and this was causing disk corruption problems as a
   4469 result.
   4470 
   4471 Mke2fs is now more careful about zapping swap space signatures and
   4472 other filesystem/raid superblock magic values so that programs like
   4473 mount who try to use hueristics to determine the filesystem type of a
   4474 partition are less likely to be confused.
   4475 
   4476 E2fsck will no longer complain if the the mode of EXT2_RESIZE_INO is a
   4477 regular file (since Andreas Dilger's on-line resizing tools will set
   4478 its mode bits).
   4479 
   4480 Fixed some minor texinfo, man pages nits for spelling errors,
   4481 texinfo warnings, etc.  (Addresses Debian bug #110621.)
   4482 
   4483 E2fsprogs program no longer print the filesystem version number
   4484 (i.e. 0.5b), since it only confuses people and doesn't serve any real
   4485 purpose.
   4486 
   4487 E2fsck will once again compile under libc5, since it will supply its
   4488 own version of strnlen if necesssary.
   4489 
   4490 mke2fs and tune2fs will allow the use of UUID= or LABEL= specifiers
   4491 when specifying the external journal device.  tune2fs will also search
   4492 devices looking for the externla journal debice when removing.  
   4493 
   4494 E2fsprogs 1.23 (August 15, 2001)
   4495 ================================
   4496 
   4497 Add initial support for extended attributes (EA); e2fsck will
   4498 correctly handle a filesystem with EA's and check the EA blocks for
   4499 corruptions.
   4500 
   4501 E2fsck's symlink sanity checking has been cleaned up.  It now checks
   4502 the i_size value of fast symlinks, and checks for immutable flags
   4503 being set of symlinks, etc.
   4504 
   4505 E2fsck now offers to clear inodes which are special files that have a
   4506 non-zero i_blocks or i_size field.  (The i_size field check was in the
   4507 previous version of the code, but due to a bug it didn't offer to
   4508 clear the inode unless i_size and i_size_high were both non-zero.)
   4509 
   4510 E2image can now create "raw" image files, which only contain the
   4511 filesystem metadata placed in a spare file so that e2fsck, dumpe2fs,
   4512 debugfs, etc., can be run directly on the raw image file.
   4513 
   4514 Add support for the 64-bit block device patches.
   4515 
   4516 Fixed bugs in creating external journals with a 1k blocksize.
   4517 
   4518 Add initial support for external journals (so long as the external
   4519 journal only supports a single filesystem) in e2fsck.
   4520 
   4521 Remove requirement for needing to run fsck on a filesystem after
   4522 removing a journal (either internal or external).
   4523 
   4524 The man pages now document how to create and manage external journals.
   4525 
   4526 Speed up the check of an ext3 filesystems by avoiding a needless flush
   4527 of all of the superblock and block group descriptors.
   4528 
   4529 Speed up creating an internal journal using tune2fs in the case where
   4530 the filesystem has a lot blocks already allocated.
   4531 
   4532 Tune2fs has been fixed to make sure that only error messages go to
   4533 stderr, and normal message go to stdout. (Addresses Debian bug #108555)
   4534 
   4535 Fixed a minor bug in mke2fs; if -O none is passed to mke2fs, it will
   4536 now not set the sparse_super feature.  (Addresses Debian bug #108165)
   4537 
   4538 Add support in fsck for the filesystem type "auto".
   4539 
   4540 Fsck -A will not try to interpret device names for filesystems which
   4541 have a pass number is 0.  (Addresses Debian bug #106696).
   4542 
   4543 Fsck prints a warning message if now valid filesystems are passed to
   4544 it.  (Addresses Debian Bug #107458.)
   4545 
   4546 E2fsck now gives an explicit warning if there filesystem still has
   4547 errors at the end of the run. (Addresses Debian bug #104502)
   4548 
   4549 E2fsck will set the EXT2_ERROR_FS flag if the journal superblock
   4550 reflects an error.  E2fsck will also not run the orphan list if the
   4551 filesystem contains errors, since the orphan list might be corrupted.
   4552 
   4553 E2fsck now prints the number of large files when given the -v option.
   4554 
   4555 Fixed minor memory leaks in e2fsck.
   4556 
   4557 Some minor man pages updates. (Addresses Debian bug #30833, #108174)
   4558 
   4559 
   4560 E2fsprogs 1.22 (June 22, 2001)
   4561 ==============================
   4562 
   4563 Fixed a bug in e2fsck's handling of orphan inodes which are special
   4564 files (i.e., block/character device files, named FIFO's, etc.).
   4565 
   4566 Fixed a bug accidentally introduced in e2fsprogs 1.21 which caused
   4567 tune2fs to fail at adding a journal to a mounted filesystem.
   4568 
   4569 Fixed a few big-endian bugs in e2fsprogs
   4570 	* The directory block functions were accidentally reporting
   4571 		some directories as corrupted when they weren't.
   4572 	* If e2fsprogs is compiled --disable-swapfs, the C language 
   4573 		equivalents weren't being included for big-endian platforms.
   4574 		(Fixes Debian bug #101686).
   4575 
   4576 Fixed a Hurd compilation problem.  (Addresses Debian bug #101361)
   4577 
   4578 Programmer's notes:
   4579 -------------------
   4580 
   4581 Use platform independent method of defining the BLKFLSBUF and FDFLUSH
   4582 ioctls, and allow them to be defined for non-i386 platforms.
   4583 
   4584 The uuid.h header file is now protected against multiple inclusions.
   4585 
   4586 E2fsprogs is now being developed using BitKeeper.  Changed the test
   4587 scripts to deal with BK's stripping CR characgters from text files,
   4588 and changed the top-level Makefile.in to avoid including BitKeeper
   4589 files when generating the source tarball.
   4590 
   4591 
   4592 E2fsprogs 1.21 (June 15, 2001)
   4593 ==============================
   4594 
   4595 Added new configure flags which allow a subset e2fsprogs to be built;
   4596 this is most useful for boot floopies, since the resulting shared
   4597 libraries and programs are slimmed down by removing features that
   4598 aren't necessary for a boot floppy.  The new flags that were added
   4599 are: --disable-swapfs, which removes support for byte swapping old
   4600 legacy PPC/68k filesystems, --disable-debugfs, which removes support
   4601 for debugfs from the libext2fs library, --disable-imager, which
   4602 removes support for the e2image program, and --disable-resizer, which
   4603 removes support for resize2fs.
   4604 
   4605 E2fsck now prints the number of mounts or days elapsed since the last
   4606 check when e2fsck is forced to check an otherwise clean filesystem.
   4607 
   4608 Tune2fs now prints an informative message about how often a filesystem
   4609 will be checked when adding a journal to the filesystem, to remind the
   4610 user that he/she may want to adjust those parameters using tune2fs
   4611 -c/-i.
   4612 
   4613 Worked around hurd brain-damage which causes e2fsck to sometimes
   4614 believe a filesystem is the root filesystem based on device numbers
   4615 (since Hurd doesn't have dev_t's, which is arguably a POSIX.1
   4616 violation).
   4617 
   4618 Fixed a bug introduced in 1.20 which caused e2fsck to abort with an
   4619 erroneous error with the -F option was specified.
   4620 
   4621 Fixed a ext3 recovery bug in the revoke handling; synchronized with
   4622 ext3 0.7a.
   4623 
   4624 Fixed two bugs in e2fsck's handling of dup block handling, dealing
   4625 with relatively uncommon edge cases: a directory with an indirect
   4626 block which is claimed by another file, and when the last inode in the
   4627 filesystem has blocks claimed by another file.
   4628 
   4629 E2fsck now checks to see if the i_size field of a fast symlink is too
   4630 big, and offers to clear the symlink if so.
   4631 
   4632 E2fsck now checks to see if i_size_high of special files is non-zero,
   4633 and offers to clear i_size_high.
   4634 
   4635 Fix e2fsck's handling of incompatible journal flags so that the user
   4636 has chance to abort, and then has the option to clear out the journal
   4637 entirely.  (Addresses Debian bug #98527.)
   4638 
   4639 Fixed a bug in fsck which could cause it to core dump if a mix of
   4640 standard and non-standard device names are used in /etc/fstab.
   4641 (Debian bug #100559)
   4642 
   4643 Fixed a bug in debugfs which caused read errors when copying a file to
   4644 not be noticed.
   4645 
   4646 The debugfs set_super_value command can now modify the s_lastcheck field.
   4647 
   4648 Fixed a bug in lsattr and chattr which was accidentally introduced in
   4649 1.20 to support > 2GB files; both lsattr and chattr wasn't reading
   4650 directories correctly because the change modified the layout of struct
   4651 dirent to be incompatible with the libe2p shared library.
   4652 
   4653 Cleaned up the mke2fs manual page and included a discussion about why
   4654 it's good to periodically check the filesystem even when journaling is
   4655 enabled.
   4656 
   4657 Programmer's notes:
   4658 -------------------
   4659 
   4660 Fix general gcc -Wall complaints.
   4661 
   4662 The types needed by the ext2 header files are now provided by
   4663 lib/ext2fs/ext2_types.h, instead of include/asm/types.h.
   4664 
   4665 Integers are now preferred to longs when trying to find a 32-bit type
   4666 in ext2_types.h.  Also, if linux/types.h has already been defined,
   4667 don't try to redefine the types.
   4668 
   4669 Fixed make depend script so that it automatically corrects the
   4670 pathname cleanups performed by make -M, so I don't have to fix them up
   4671 by hand.
   4672 
   4673 Fixed the d_loaddump test case to be more robust, and not depend on
   4674 bash'isms.
   4675 
   4676 Removed debugfs's dependence on pread(), which was accidentally
   4677 intrudced in e2fsprogs 1.20
   4678 
   4679 Fixed a performance bug in the libext2fs's icount routine; the size
   4680 estimate of the icount array was incorrectly being calculated.
   4681 
   4682 Removed use of the badblocks compatibility functions in the e2fsprogs
   4683 programs.
   4684 
   4685 Added paranoia code which protects against strange cases where /etc
   4686 isn't on the root filesystem, or if /etc/mtab doesn't exist.
   4687 
   4688 The header file ext2_types.h is now installed.
   4689 
   4690 Autoconf is used to determine when we are on big-endian machines,
   4691 instead of doing run-time tests, to save a few bytes of code.
   4692 
   4693 The ext2fs_mark_generic_bitmap and ext2fs_unmark_generic_bitmap
   4694 functions are no longer inline functions, which saves space and
   4695 doesn't really cost any real performance.
   4696 
   4697 The ext2fs library no longer depends on the e2p library.  (What need
   4698 there was of it --- namely, fsetflags, was coded in-line).
   4699 
   4700 Fixed the makefile so that lib/ext2fs/ext2_types.h is generated even
   4701 when the user is stupid and tries compiling the package using "make
   4702 install" as root.
   4703 
   4704 Miscellaneous code cleanups:
   4705 	* Added missing files from Makefile.in's SRCS file, so that 
   4706 		their dependencies would be properly calculated.
   4707 	* Removed redundant code
   4708 	* Fixed comments in code
   4709 	* Removed no-longer unneeded argsused #pragma.
   4710 
   4711 
   4712 E2fsprogs 1.20 (May 20, 2001)
   4713 =============================
   4714 
   4715 Add support for replaying the ext3 journal purely in user mode,
   4716 including handling the orphaned inode list.  Used code contributed by
   4717 Andreas Dilger, with bug fixes and the orphaned inode handling done
   4718 by Theodore Ts'o.
   4719 
   4720 The mke2fs and tune2fs programs can create or modify a filesystem to
   4721 include an ext3 journal.  Tune2fs also can be used to remove an ext3
   4722 journal from a filesystem.
   4723 
   4724 E2fsck will now check for the existence of a linked list of orphan
   4725 inodes in the superblock, and clear those inodes before starting the
   4726 rest of the filesystem check (but after the journal playback).
   4727 
   4728 E2fsck now validates the file descriptor passed to the -C option,
   4729 which saves against the completion bar getting written to an
   4730 unexpected location, such as the disk being checked.  (Debian
   4731 bug/wishlist #55220)
   4732 
   4733 E2fsck will now bump the filesystem revision number from zero to one
   4734 if any of the compatibility bits are set.
   4735 
   4736 Fixed a bug where a badly corrupted directory on a big endian system
   4737 could cause e2fsck to die with a bus error.  The
   4738 ext2fs_read_dir_block() and ext2fs_process_dir_block() functions in
   4739 the ext2 library now does alignment sanity checks on the rec_len field
   4740 of the directory entry before using it.
   4741 
   4742 The ext2 library has been enhanced to make tune2fs safe to run on
   4743 mounted filesystems.  (Users could usually get away with using tune2fs
   4744 on mounted filesystems before, but with the advent of ext3 and
   4745 journaling, it became important to make tune2fs was *really* safe for
   4746 use even when the filesystem being modified is mounted.)  E2label is
   4747 now implemented by tune2fs using an argv[0] dispatch, so that e2label
   4748 is also now safe for use on mounted filesystems.
   4749 
   4750 Added a new program, e2image, which creates a backup of critical ext2
   4751 filesystem data structures.  The generated image file can be examined
   4752 using dumpe2fs and debugfs.  In the future, e2fsck will be able to use
   4753 the image file to help recover very badly damaged filesystems.
   4754 
   4755 Fixed a number of LFS bugs in e2fsck; very, very large (> 2**42) files
   4756 no longer cause e2fsck to bomb out.  Also treat files > 2GB as being
   4757 large file when deciding whether or not the filesystem has large files.
   4758 
   4759 Fixed lsattr and chattr so that they work correctly on large files.
   4760 (Fixes Debian bug #72690.)
   4761 
   4762 Removed limitation in get_device_size() which imposed a one terrabyte
   4763 filesystem limitation.  (Most 2.2 kernels still have a signed int
   4764 problem which cause 1 TB block device limitation.  Fortunately, the
   4765 kernel patches to fix this are much easier than fixing the 2TB
   4766 limitation in the kernel.  :-)
   4767 
   4768 A max_mount_count of zero is now treated as if no mount count were
   4769 set.  (Previously, no mount count was indicated by using -1, and a
   4770 mount count of zero caused e2fsck to always be run.)
   4771 
   4772 Mke2fs supports two new filesystem types largefile and largefile4.
   4773 
   4774 Mke2fs now adds some randomness in s_max_mount_count so that multiple
   4775 filesystems won't be all checked at the same time under normal
   4776 operations.
   4777 
   4778 Fixed bug in the progress bar printing code which could cause e2fsck
   4779 to core dump on an illegal filesystem.
   4780 
   4781 Fixed bug in fsck which could allow more than one instance of e2fsck
   4782 to be printing a progress bar.  (Debian bug #65267)
   4783 
   4784 Fsck using a UUID or a LABEL specifier will work even if devfs is
   4785 compiled into the kernel and not mounted.  If the pathnames in
   4786 /proc/partitions are incorrect, fsck will search /dev for the correct
   4787 device (using the new ext2fs_find_block_device library function).
   4788 Fsck now also checks the RAID devices first so that they are properly
   4789 found when they are in use.  Support has also been added to support
   4790 additional IDE disks and the DAC 960 device names.  (Debian bug #94159)
   4791 
   4792 Fixed a bug in fsck which caused it not deal properly with 16
   4793 byte long filesystem labels.
   4794 
   4795 Fsck's -t option has been made a lot more flexible.  The semantics for
   4796 what happens if a comma-separated list to fsck has been regularized,
   4797 and it is now possible to filter what filesystems will get checked
   4798 based what is in the filesystem's fstab entry's option field.  (Debian
   4799 bug #89483.)
   4800 
   4801 The dumpe2fs program can now print out the group description
   4802 information in hex, and also prints the location of the superblock and
   4803 block group descriptor for those block groups that have them.
   4804 
   4805 Mke2fs now clears the ext2 superblock before it starts creating a
   4806 filesystem, so that the superblock magic number is only written if the
   4807 filesystem creation process successfully completes.
   4808 
   4809 The debugfs program's stat command now pretty-prints the blocks used
   4810 by an inode so that it's more compact and informative.
   4811 
   4812 The debugfs stats command now uses the same libe2p code (which is used
   4813 by dumpe2fs) to print the superblock header information.  This is more
   4814 complete, and it avoids a bit of code duplication.
   4815 
   4816 Added a new debugfs command, set_super_value (ssv) which allows the
   4817 user to set arbitrary superblock fields.
   4818 
   4819 Debugfs was extended to support inode numbers in hex (by prefixing
   4820 them with 0x), and so that modify_inode can set the inode generation
   4821 number.  Also, there is now a new function command called logdump
   4822 which will dump an ext3 journal.
   4823 
   4824 Fixed a bug in debugfs so that quitting out of the pager doesn't kill
   4825 debugfs.
   4826 
   4827 Debugfs's dump command now stops immediately upon reporting a disk
   4828 read error.  (Fixed a bug in ext2fs_file_read library routine which
   4829 caused debugfs not to stop.)  (Debian bug #79163)
   4830 
   4831 On systems with /proc/mounts (mainly Linux systems), /proc/mounts is
   4832 checked before /etc/mtab is used, since /proc/mounts is more likely to
   4833 be accurate.
   4834 
   4835 Added portability fixes for Solaris and Linux/ia64.
   4836 
   4837 Various manual pages were clarified and cleaned up.  (Fixed debian
   4838 bugs #63442, #67446, and #87216)
   4839 
   4840 
   4841 Programmer's notes:
   4842 -------------------
   4843 
   4844 The e2fsck message printer now supports %Iu and %Ig, which will print
   4845 out the inode's user and group owners, respectively.
   4846 
   4847 E2fsprogs now includes its own version of include/linux/ext2_fs.h, so
   4848 that no longer dependent on the system having the correct version of
   4849 the kernel header files.
   4850 
   4851 Added a new function to libext2, ext2fs_find_block_device(), which
   4852 searches the system (i.e., /dev, /devfs, /devices) for a pathname to a
   4853 device given its device number.
   4854 
   4855 Added a new function to libext2, ext2fs_sync_device, which centralizes
   4856 all of the places which might try to use the BLKFLSBUF or FDFLUSH
   4857 ioctls (and usually failing to define them since the system header
   4858 files don't usually do this for us, and we're trying to avoid usage of
   4859 kernel include files now).
   4860 
   4861 Added new utility programs in tests/progs: random_exercise and
   4862 hold_inode.  They aren't built by default; they're useful for
   4863 exercising ext3 filesystem code.
   4864 
   4865 Added a new ext2 filesystem flag, EXT2_FLAG_SUPER_ONLY, which causes
   4866 the filesystem close functions to only update the superblock, and to
   4867 not touch the block group descriptors.  Needed by tune2fs when
   4868 modifying a mounted filesystem.
   4869 
   4870 Got rid of struct ext2fs_sb and replaced it with the standard struct
   4871 ext2_super_block from include/linux/ext2_fs.h.  Note: this may break
   4872 source (but not binary) compatibility of some users of the ext2
   4873 library.  Those applications should just simply do a global search and
   4874 replace of struct ext2fs_sb with struct ext2_super_block, and include
   4875 the new header file <ext2fs/ext2_fs.h> which defines it.
   4876 
   4877 The ino_t type has been renamed ext2_ino_t to protect applications
   4878 that attempt to compile -D_FILE_OFFSET_BITS=64, since this
   4879 inexplicably changes ino_t(!?).  So we use ext2_ino_t to avoid an
   4880 unexpected ABI change.
   4881 
   4882 The Makefiles have been reworked so that "make check" can be run from
   4883 the top-level Makefile.
   4884 
   4885 Fix general gcc -Wall complaints and removed dead code.
   4886 
   4887 Remove use of NOARGS, because we assume everyone does ANSI C these
   4888 days.
   4889 
   4890 Added build-rpm script from sct.
   4891 
   4892 New functions ext2fs_image_{inode,super,bitmap}_{read,write} added 
   4893 to support e2image.
   4894 
   4895 New function ext2fs_flush_icache which must be called if the
   4896 application program modifies the inode table blocks without going
   4897 through ext2fs_write_inode() interface.
   4898 
   4899 New ext2fs_check_mount_point() function, which will return the mount
   4900 point of a device if mounted.
   4901 
   4902 The io_channel abstraction now has an optional interface,
   4903 io_channel_write_range, which allows specific byte ranges to be
   4904 written.  
   4905 
   4906 The unix_io IO channel now supports write-through caching, so that
   4907 journal creation is more efficient.
   4908 
   4909 Added x86 assembly language routines to support byte swapping, to
   4910 reduce executable size.
   4911 
   4912 Fixed bug in the utility program subst so that it's possible to
   4913 replace a substitution variable with a zero-length string.
   4914 
   4915 Fixed numbering e2fsck pass1 problem numbers; an extra zero had
   4916 slipped into some of the problem number.
   4917 
   4918 E2fsprogs 1.19 (July 13, 2000)
   4919 ==============================
   4920 
   4921 Release the resize2fs program since the timeout before it could
   4922 be released under the GPL has finally expired.
   4923 
   4924 Add experimental support needed for the ext2 compression patches.
   4925 This requires compiling e2fsprogs with the --enable-compression flag
   4926 to the configure script.
   4927 
   4928 Added ext3 journalling support.  E2fsck will run the journal (if
   4929 necessary) by temporarily mounting the filesystem.  /sbin/fsck.ext3 is
   4930 installed as a symlink to e2fsck.  Fsck has been taught about ext3,
   4931 and treats it the same as ext2 in terms of the progress bar logic.
   4932 Dumpe2fs will display the superblock journaling information if the
   4933 filesystem has a journal.  The ext2 library will now permit opening an
   4934 ext3 filesystem with the recovery flag set.  This is necessary for
   4935 on-line dump's to work correctly, but there may be issues with this
   4936 working well since ext3 is much less agressive about syncing blocks to
   4937 the filesystem, since they're safe on the journal.
   4938 
   4939 Tune2fs and e2fsck have been changed to allow the mount_count check to
   4940 be disabled by setting max_mount_count to -1.  (This was already
   4941 supported by the kernel.)
   4942 
   4943 Create a symbolic link for fsck.ext3, since the e2fsprogs utilities
   4944 are used for ext3 as well.
   4945 
   4946 Added internationalization support for e2fsprogs; must be enabled
   4947 by passing --enable-nls to configure.
   4948 
   4949 Always use the provided ext2fs header files to insulate ourselves from
   4950 kernel version changes.  Which include files are used by e2fsprogs
   4951 have also been cleaned up to improve portability.
   4952 
   4953 Limit the number of times that e2fsck updates the progress bar so that
   4954 people who are booting using a 9600 baud console don't get swampped by
   4955 too many updates.
   4956 
   4957 Improved the loop detection algorithm in e2sck's pass #3 so that it is
   4958 much, much faster for large filesystems with a large number of
   4959 directories.
   4960 
   4961 The memory footprint for e2fsck is now slightly smaller than before.
   4962 
   4963 E2fsck now checks if special devices have a non-zero size, and offers
   4964 to clear the size field if it finds such an inode.  
   4965 
   4966 E2fsck now checks if special devices have the append-only flag set,
   4967 and offers to clear the inode.
   4968 
   4969 E2fsck now properly handles some "should never fail" cases during a
   4970 bitmap copy in pass5.
   4971 
   4972 E2fsck now properly prints control characters in filenames as ^A .. ^Z.
   4973 
   4974 E2fsck now calculates the correct location of the backup superblock in
   4975 the case of filesystem blocksizes > 1k.
   4976 
   4977 Fixed a bug in e2fsck's calculation of the number of inodes_per_block
   4978 which normally didn't cause problems under most filesystem parameters,
   4979 but could cause a valid superblock to be rejected in extreme cases.
   4980 Other checks for validating superblock values were made more
   4981 stringent.
   4982 
   4983 Added non-destructive write testing to the badblocks program, courtesy
   4984 of David Beattie.  The badblocks also now has an option to input the
   4985 current set of bad blocks, so that known bad blocks are skipped to
   4986 speed up the badblocks test.  There is also a persistent rescan
   4987 feature which causes badblocks to run until it has completed some
   4988 number of passes without discovering any new bad blocks.
   4989 
   4990 Badblocks now checks to see if the device is mounted and refuses to do
   4991 the tests involving writing to the device if it is mounted.  Also,
   4992 badblocks now allows the number of blocks to be checked to be
   4993 defaulted to the size of the partition.
   4994 
   4995 Fixed a bug in fsck which didn't allow non-root users to be able to
   4996 check filesystems if there were any LABEL= or UUID= entries in
   4997 /etc/fstab.
   4998 
   4999 The Hurd doesn't support the filetype filesystem feature.  The mke2fs
   5000 program now makes sure that for the Hurd, the filestype feature is
   5001 turned off.  E2fsck will check to see if the filetype feature is
   5002 turned on for Hurd filesystems, and offer to turn off the feature.
   5003 
   5004 Mke2fs now has a safety check to make sure the number of blocks do not
   5005 exceed 32 bits even on a 64 bit platform.
   5006 
   5007 Really fixed a bug in fsck to allow "fsck -As" to run interactive
   5008 fsck's.  (For those people who like to do interactive fsck's in the
   5009 /etc/rc scripts!?!)
   5010 
   5011 Debugfs has a few new features: the rdump command, which will do a
   5012 recursive dump of a directory and all of its contents, and the lcd
   5013 command which does a local chdir (much like the ftp command of the
   5014 same name).  In addition, the debugfs program and the open_filesystem
   5015 command now takes three new options: -b and -s, which allows the
   5016 blocksize and superblock location to be specified, and the -c option
   5017 which is used in catastrophic situations where the block group
   5018 descriptors are corrupt.  If the -c option is specified, debugfs will
   5019 skip trying to read in the block and inode bitmaps.
   5020 
   5021 Debufs's lsdel command was fixed to handle bad blocks in the inode
   5022 table.
   5023 
   5024 A Y2K bug in debugfs's "ls -l" handling was fixed by switching to use
   5025 4 digit years.
   5026 
   5027 General improvements in error messages
   5028 
   5029   - Mke2fs prints a sane error message if the partition size is zero
   5030 	(usually because the partition table wasn't reread by the
   5031 	kernel due to the partition being busy), instead of "invalid
   5032 	argument passed to ext2 library while initializing superblock".
   5033 
   5034   - Fsck now prints more self-explanatory message if an invalid UUID=
   5035 	or LABEL= specification is passed to it.
   5036 
   5037 UUID library changed to use the LGPL.
   5038 
   5039 Fixed a bug in the UUID library where very rapid calls to the
   5040 time-based UUID generator could cause duplicate UUID's to be returned.
   5041 This was not a problem for e2fsprogs, but it could be a problem for
   5042 other users of the library.
   5043 
   5044 Make the UUID library more robust in the face of missing or an
   5045 improper /dev/urandom or /dev/random files.
   5046 
   5047 Added some random portability fixes for Solaris.
   5048 
   5049 Some minor man page updates.
   5050 
   5051 Fixed a memory leak in the ss library.
   5052 
   5053 
   5054 Programmer's notes:
   5055 -------------------
   5056 
   5057 We now try to use lseek64 and open64 from the LFS if possible.
   5058 
   5059 The 3rd parameter in e2p's print_flags is now a flags word, instead of
   5060 a boolean option.
   5061 
   5062 The mark and unmark bitmap functions now return the previous state of
   5063 the bit that was being changed, which is useful for some speed
   5064 optimizations.
   5065 
   5066 The following functions have been added to enhance the badblocks list
   5067 handling in libext2fs: ext2fs_write_bb_FILE, ext2fs_read_bb_FILE2, and
   5068 ext2fs_badblocks_equal.
   5069 
   5070 The ext2 header files now have the latest journalling fields to the
   5071 superblock.
   5072 
   5073 The ext2fs_mkdir function in libext2fs now properly backs out of error
   5074 conditions robustly.
   5075 
   5076 Cleaned up makefiles:
   5077   - to cleanly  compile with the -j flag.
   5078   - so distclean removes all generated files.
   5079   - so in case of an error while installing header files, the make aborts.
   5080 
   5081 Fix test_script so that it works correctly when compiling in the
   5082 source directory.
   5083 
   5084 The random UUID generation routine has been made slightly better in
   5085 the case where /dev/random doesn't exist.  (Use of randomly-based UUID
   5086 is still not recommended if /dev/random doesn't exist, however; it's
   5087 better to use the time/ethernet MAC address UUID in this case.)
   5088 
   5089 Clean up the build process so it's more friendly in case of missing
   5090 directories.
   5091 
   5092 The ext2fs header file can now be #include'd into C++ programs.
   5093 
   5094 The e2p.h header file is now installed.
   5095 
   5096 Added workaround to a gawk 3.0.5 bug in lib/ss/mk_cmds.
   5097 
   5098 
   5099 
   5100 E2fsprogs 1.18 (November 10, 1999)
   5101 ==================================
   5102 
   5103 Fix a core dumping bug in e2fsck if an imagic inode is present or
   5104 (more rarely) if the filesystem is badly corrupted enough that e2fsck
   5105 has to restart pass 1 processing.  E2fsck now closes the filesystem
   5106 before freeing a large number of its data structures, so in the case
   5107 of future memory faults, at least the fixed filesystem will be fully
   5108 written out.
   5109 
   5110 If a filesystem doesn't support imagic inodes, and e2fsck discovers an
   5111 imagic inode, it will offer to clear the imagic flag.
   5112 
   5113 E2fsck will now offer to clear the immutable flag on special files
   5114 (device/socket/fifos) when running it in non-preen mode.
   5115 
   5116 E2fsck will now set the filetype when creating /lost+found, and when
   5117 connected orphaned inodes to /lost+found.
   5118 
   5119 Debugfs's ncheck and icheck commands now handles the case where there
   5120 are bad blocks in the inode table without bombing out.
   5121 
   5122 The badblocks list processing code has been made more efficiently for
   5123 appending a large number of (ordered) badblocks to the badblocks list.
   5124 
   5125 Some minor man page updates.
   5126 
   5127 Fsck now allows interactive e2fsck's when using fsck -As (not a common
   5128 mode, but some people like to do this in boot scripts for silly reasons).
   5129 
   5130 Programmer's notes:
   5131 -------------------
   5132 
   5133 The internal e2fsck problem code for PR_2_SPLIT_DOT was fixed to meet
   5134 with the problem code convention.
   5135 
   5136 The badblocks list regression test program has been updated to work
   5137 with previously made API name changes.
   5138 
   5139 The ext2fs_free() command now uses the new badblocks API to avoid
   5140 using the compatibility layer.
   5141 
   5142 Added new regression test cases; the run_e2fsck test script now
   5143 supports the ability for a test case to run a prepratory command
   5144 before running e2fsck.
   5145 
   5146 E2fsprogs 1.17 (October 26, 1999)
   5147 =================================
   5148 
   5149 Fixed nasty typo in fsck which caused parallelized fsck's to go into an
   5150 infinite loop.
   5151 
   5152 Fixed a bug in fsck where it used strncmp to compare a binary UUID,
   5153 thus potentially causing problems if a binary UUID contained a NULL
   5154 character.
   5155 
   5156 E2fsck now uses stricter checks for directory entries in pass 2:
   5157 zero-length filenames are not allowed; neither are 8 byte long
   5158 directory entries.
   5159 
   5160 The debugfs "dirty" command now clears the filesystem valid bit.
   5161 (Previously this just set the dirty-as-in-needs-writing-out-to-disk
   5162 bit in the in-core superblock image.  The new functionality is more
   5163 what the user expects, and is more useful.)
   5164 
   5165 Added a debugging hook to test parallel fsck; if the environment
   5166 variable FSCK_FORCE_ALL_PARALLEL, then filesystems on the same drive
   5167 will be checked in parallel when they normally would not be.
   5168 
   5169 Programmer's notes:
   5170 -------------------
   5171 
   5172 Fixed some #ifdef's for compilation under the Hurd OS.
   5173 
   5174 Fixed minor W2K compatibility problems.
   5175 
   5176 Fixed some miscellaneous GCC warnings.
   5177 
   5178 
   5179 E2fsprogs 1.16 (October 22, 1999)
   5180 =================================
   5181 
   5182 Fixed a race condition bug in fsck; when printing a progress bar, if
   5183 checking multiple filesystems in parallel, it was possible for fsck to
   5184 send e2fsck a SIGUSR1 signal before e2fsck had installed its signal
   5185 handler, which would cause it to terminate with a signal 10.
   5186 
   5187 E2fsck now properly handles filesystems that have the
   5188 INCOMPAT_FILETYPE feature turned on.  It can be used to convert a
   5189 filesystem into using or not using FILETYPE feature.
   5190 
   5191 E2fsck now properly handles filesystems that have the IMAGIC feature
   5192 turned on (this is used on Linux AFS servers).
   5193 
   5194 The mke2fs program now creates filesystems that have the filetype and
   5195 sparse_superblock features enabled by default, unless it is run on a
   5196 pre-2.2 kernel.  These features are not supported by a pre-2.2 kernel,
   5197 so there is now a new flag -O which allows the user to specify with
   5198 which features she would like to create the filesystem; "mke2fs -O
   5199 none" will create a filesystsem compatible with 2.0 kernels.
   5200 
   5201 The tune2fs program now has a -O option which allows the user to set
   5202 and reset "safe" filesystem features.  Currently, the only ones which
   5203 allows to be modified are the filetype and sparse_superblock features.
   5204 Note setting or clearing either feature will require running e2fsck on
   5205 the filesystem afterwards.  (n.b. Clearing the sparse_superblock feature
   5206 requires that there is enough free space on the filesystem for the
   5207 extra superblocks which will be created by e2fsck.)
   5208 
   5209 Debugfs can now set and print filesystem features in the superblock
   5210 using the "features" command.  Dumpe2fs will print out the complete
   5211 set of features when listing the superblock.
   5212 
   5213 Dumpe2fs has new options -f (force) and -h (header-only).
   5214 
   5215 Fixed a bug in e2fsck which could cause the PROGRAMMING ERROR/bonehead
   5216 message to come up.  This could happen when decrementing or
   5217 incrementing a link count could result in an overflow.
   5218 
   5219 Fixed a bug in e2fsck where the block count on the lost+found
   5220 directory would not be properly incremented when the directory was
   5221 expanded to the point where an indirect block needed to be allocated.
   5222 
   5223 E2fsck now makes some additional sanity checks on the superblock to
   5224 avoid crashing or giving a memory allocation error if some of the
   5225 values in the superblock are unresonable (but the superblock otherwise
   5226 looks valid).
   5227 
   5228 Fixed a bug in e2fsck where a very badly corrupted filesystem might
   5229 require two passes to completely fix the filesystem.  This happened if
   5230 an inode claimed blocks that was part of the filesystem metadata
   5231 (typically, when garbage was written into an inode table or indirect
   5232 block, since this kind of filesystem corruption normally doesn't
   5233 happen otherwise).
   5234 
   5235 On the Alpha, glibc declares st_flags although it isn't actually used;
   5236 the configure script was improved to detect this case so that
   5237 e2fsprogs can avoid using the non-functional stat field.
   5238 
   5239 The manual pages were updated to use a more consistent formatting
   5240 style consistent with standard Unix man pages.  Mke2fs's man page
   5241 added documentation for a few previously undocumented options.
   5242 
   5243 Fixed minor display bugs in tune2fs and mke2fs.
   5244 
   5245 Programmer's notes:
   5246 -------------------
   5247 
   5248 Improved portability of e2fsprogs to non-Unix systems (in particular, NT).
   5249 
   5250 Added features to parse and print feature strings into the e2p library.  
   5251 (e2p_feature2string, e2p_string2feature, e2p_edit_feature).
   5252 
   5253 ext2fs_mkdir() and ext2fs_new_dir_block() now creates directories
   5254 whose directory entries contain proper filetype information if the
   5255 filesystem supports it.
   5256 
   5257 ext2fs_link() now uses the low 3 bits of its flags parameter to pass
   5258 the directory entry filetype information.  This is used to set the
   5259 directory entry filetype information if the filesystem supports it.
   5260 
   5261 Fixed a bug in ext2fs_expand_dir() where the block count in a
   5262 directory's inode would not be properly incremented when the directory
   5263 was expanded to the point where an indirect block needed to be
   5264 allocated.
   5265 
   5266 
   5267 E2fsprogs 1.15 (July 18, 1999)
   5268 ==============================
   5269 
   5270 Add configuration checks so that e2fsprogs will compile cleanly on
   5271 Linux 2.3 kernels that have renamed i_version to i_generation.
   5272 
   5273 E2fsck now prints a progress/completion bar (and not just a simple
   5274 spinner) if the -C0 option is requested or if it receives a SIGUSR1
   5275 signal.  Fsck will automatically manage the (potentially muliple)
   5276 e2fsck processes to print completion bars if it is given a -C option,
   5277 with the right thing happening if multiple filesystems are being
   5278 checked in parallel.
   5279 
   5280 Mke2fs now has better automatic hueristics to determine the filesystem
   5281 parameters to be used for a particular filesystem.  Added a new option
   5282 -T which allows the user to specify how the filesystem is to be used,
   5283 which helps mke2fs do a better job selecting the filesystem parameters.
   5284 
   5285 Mke2fs now creates revision 1 filesystems by default, and with the
   5286 sparse superblock feature enabled.  The sparse superblock feature is
   5287 not understood by Linux 2.0 kernels, so they will only allow read-only
   5288 mounts of filesystems with this sparse superblocks.
   5289 
   5290 Fix bug where if /dev/null couldn't be opened (should never happen),
   5291 e2fsck would hang in a tight loop.
   5292 
   5293 Make e2fsck handle the case where /lost+found isn't a directory.
   5294 
   5295 E2fsck now uses mallinfo if it exists to get accurate statistics about
   5296 its memory usage.
   5297 
   5298 Fix bug in e2fsck where it wouldn't check to see if a disconnected
   5299 inode had any problems before connecting it to /lost+found.
   5300 
   5301 Add check to e2fsck so it makes sure that total number of inodes in
   5302 the filesystem is a sane number.
   5303 
   5304 Fix fencepost error when clearing an the end of the block bitmap which
   5305 caused the last block in the bitmap not to get cleared.
   5306 
   5307 Cleaned up a number of messages in e2fsck:
   5308 	* The message "Group's #'s copy of the group descriptor..."
   5309 		was fixed so that the correct number would be displayed.
   5310 	* Added missing space in the "disk write-protected" error messsage
   5311 	* Cleaned up the error message printed when a non-interactive
   5312 		e2fsck needs to abort a check because the filesystem
   5313 		appears to be mounted.
   5314 
   5315 Added a new command-line utility, uuidgen, which will create and print
   5316 a UUID.
   5317 
   5318 Make debugfs's icheck command more robust by checking to make sure an
   5319 inode has valid blocks before interarting over the inode's blocks.
   5320 
   5321 UUID generation now uses a random-based scheme whenever possible to
   5322 prevent potential privacy problems.
   5323 
   5324 Man pages for all of the UUID functions in the lirbary were added.
   5325 
   5326 Fixed bug in fsck so it won't coredump if a filesystem not in
   5327 /etc/fstab is given to it.
   5328 
   5329 Fsck now understands the UUID=xxxx and LABEL=yyyy forms in /etc/fstab
   5330 that most of the other mount utilities understands.
   5331 
   5332 Mke2fs will make a filesystem even if it appears mounted if the force
   5333 option is given.
   5334 
   5335 Dumpe2fs has new command-line options which allow a filesystem expert
   5336 to specify the superblock and blocksize when opening a filesystem.
   5337 This is mainly useful when examining the remains of a toasted
   5338 filesystem.
   5339 
   5340 The badblocks program has been updated to display correctly on disks
   5341 with large block numbers.
   5342 
   5343 The badblocks program no longer gives spurious errors when errors
   5344 occur on non-block boundaries, which is common if the blocksize is
   5345 larger than 1k.
   5346 
   5347 Mke2fs will sync the disk device every MKE2FS_SYNC block groups if the
   5348 MKE2FS_SYNC environment variable is set.  This is to work around a VM
   5349 bug in the 2.0 kernel.  I've heard a report that a RAID user was able
   5350 to trigger it even using a 2.2 kernel, but hopefully it will not be
   5351 needed for most Linux 2.2 users.
   5352 
   5353 Fixed miscellaneous documentation and man pages.
   5354 
   5355 Programmer's notes:
   5356 -------------------
   5357 
   5358 Cleaned up functions such as pass1_get_blocks, pass1_read_inode which
   5359 in e2fsck's pass1.c really should have been static.
   5360 
   5361 The return value of the uuid_compare() function was changed to make it
   5362 match with the convetions used by strcmp, memcmp, and Paul Leach's
   5363 UUID sample document.
   5364 
   5365 The "make depend" process has now been made more automated; it now
   5366 automatically word-wraps the dependencies, and only replaces source
   5367 Makefile.in if there has been a change in the dependencies.  Also, a
   5368 top-level "make depend" now recurses through all the subdirectories
   5369 automatically.
   5370 
   5371 The Makefile in .../util has been changed so that subst is built using
   5372 the native C compiler during a cross-compilation, since the subst
   5373 program is only used during the build process.  Also add an explicit
   5374 rule to build util/subst by cd'ing to the correct directory and
   5375 running Makefile.
   5376 
   5377 The man directories are defined in terms mandir, so that the configure
   5378 script can override the location of the manual pages.
   5379 
   5380 The config files have been updated to recognize new machine types for
   5381 both the i386 and alpha families.
   5382 
   5383 Fsck has been modified so that it will accurately create an
   5384 fsck_instance even when the noexecute flag is set.  This allows for
   5385 accurate debugging of the fsck pass structure.  Also, when the verbose
   5386 flag is given twice, fsck will print debugging information about when
   5387 fsck is waiting for jobs to finish.
   5388 
   5389 
   5390 E2fsprogs 1.14 (January 9, 1999)
   5391 ================================
   5392 
   5393 Fix the fstab parsing code so that it can handle blank lines and
   5394 comment characters.  Also, missing pass numbers need to be treated as
   5395 zero.
   5396 
   5397 Fixed a bug in e2fsck where under some circumstances (when e2fsck
   5398 needs to restart processing after fixing an egregious inconsistency)
   5399 it would try to access already freed memory.
   5400 
   5401 E2fsck now prints non-printable characters in directory entries and
   5402 pathnames using '^' and 'M-' notation.
   5403 
   5404 Fixed chattr so that it will ignore symbolic links when doing
   5405 recursive descent traversals.  For both chattr and lsattr, no longer
   5406 print the version string unless the -V option is given.
   5407 
   5408 Allow the system administrator to directly specify the number of
   5409 inodes desired in the filesystem, for some special cases where this is
   5410 necessary.
   5411 
   5412 Fix portability problems so that e2fsprogs can be compiled under Linux
   5413 1.2 systems and Solaris systems.
   5414 
   5415 Update the config.guess file with a more recent version that will
   5416 identify newer Linux platforms.
   5417 
   5418 Programmer's notes
   5419 ------------------
   5420 
   5421 Ext2fs_read_inode and ext2fs_write_inode will now return an error if
   5422 an inode number of zero is passed to them.
   5423 
   5424 E2fsprogs 1.13 (December 15, 1998)
   5425 ==================================
   5426 
   5427 Fixed a bug in debugfs where an error messages weren't getting printed
   5428 when the ext2 library routines to read inodes returned errors in the
   5429 stat, cmri and rm commands.
   5430 
   5431 Fixed a bug in mke2fs so that if a ridiculous inode ratio parameter is
   5432 provided, it won't create an inode table smaller than the minimum
   5433 number of inodes required for a proper ext2 filesystem.
   5434 
   5435 Fsck now parses the /etc/fstab file directly (instead of using
   5436 getmntent()), so that it can distinguish between a missing pass number
   5437 field and pass number field of zero.  This caused problems for
   5438 diskless workstations where all of the filesystems in /etc/fstab have
   5439 an explicit pass number of zero, and fsck could not distinguish this
   5440 from a /etc/fstab file with missing pass numbers.
   5441 
   5442 E2fsck will create a /lost+found directory if there isn't one in the
   5443 filesystem, since it's safer to create the lost+found directory before
   5444 it's needed.
   5445 
   5446 Fixed e2fsck so that it would detect bogus immutable inodes which
   5447 happen to be sockets and FIFO files, and offer to clear them.
   5448 
   5449 If a filesystem has multiple reasons why it needs to be checked, and
   5450 one of the reasons is that it is uncleanly mounted, e2fsck will print
   5451 that as the reason why the filesystem is being checked.
   5452 
   5453 Cleaned up the output routines of mke2fs so that it doesn't overflow
   5454 an 80 column display when formating really big filesystems.
   5455 
   5456 Added a sanity check to e2fsck to make sure that file descriptors 0,
   5457 1, 2 are open before opening the hard disk.  This avoids a problem
   5458 where a broken program might exec e2fsck with those file descriptors
   5459 closed, which would cause disastrous results if the kernel returns a
   5460 file descriptor for the block device which is also used by FILE *
   5461 stdout.
   5462 
   5463 Fixed up the e2fsck progress reporting functions so that the values
   5464 reliably reach 100% at the completion of all of the e2fsck passes.
   5465 
   5466 Fixed minor documentation bugs in man pages and usage messages.
   5467 
   5468 Programmer's notes:
   5469 -------------------
   5470 
   5471 Fixed a number of lint warnings in the ext2fs library and potential
   5472 portability problems from other OS's header files that might define
   5473 CPP macros for names like "max" and "min".
   5474 
   5475 ext2fs_badblocks_list_add() has been made more efficient when it needs
   5476 to grow the bad blocks list.
   5477 
   5478 Fixed a bug in e2fsck which caused it to dereference a freed pointer
   5479 just before exiting.
   5480 
   5481 Fixed the substition process for generating the mk_cmds and compile_et
   5482 scripts so that they will work outside of the build tree.
   5483 
   5484 Add sanity check to e2fsck so that if an internal routine
   5485 (ext2fs_get_dir_info) returns NULL, avoid dereferencing the pointer
   5486 and causing a core dump.  This should never happen, but...
   5487 
   5488 E2fsprogs 1.12 (July 9, 1998)
   5489 ==================================
   5490 
   5491 E2fsprogs now works with glibc (at least with the version shipped wtih
   5492 RedHat 5.0).  The ext2fs_llseek() function should now work even with
   5493 i386 ELF shared libraries and if llseek() is not present.  We also
   5494 explicitly do a configure test to see if (a) llseek is in libc, and
   5495 (b) if llseek is declared in the system header files.  (See standard
   5496 complaints about libc developers don't understand the concept of
   5497 compatibility with previous versions of libc.)
   5498 
   5499 The ext2fs library now writes out the block group number in each of
   5500 the superblock copies.  This makes it easier to automatically
   5501 determine the starting block group of the filesystem when the block
   5502 group information is trashed.
   5503 
   5504 Added support for the EXT2_FEATURE_INCOMPAT_FILETYPE feature,
   5505 which means that e2fsprogs will ignore the high 8 bits of the
   5506 directory entry's name_len field, so that it can be used for other
   5507 purposes.
   5508 
   5509 Added support for the EXT2_FEATURE_RO_COMPAT_LARGE_FILE feature.
   5510 E2fsprogs will now support filesystems with 64-bit sized files.
   5511 
   5512 Added support for the EXT2_FEATURE_COMPAT_DIR_PREALLOC feature.
   5513 
   5514 Added new program "e2label", contributed by Andries Brouwer.  E2label
   5515 provides an easy-to-use interface to modify the filesystem label.
   5516 
   5517 Fixed bug so that lsattr -v works instead of producing a core dump.
   5518 
   5519 Fixed a minor bug in mke2fs so that all groups with bad superblock
   5520 backup blocks are printed (not just the first one).
   5521 
   5522 Mke2fs will check the size of the device, and if the user specifies a
   5523 filesystem size larger than the apparent size of the device it will
   5524 print a warning message and ask if the user wants to proceed.
   5525 
   5526 E2fsck has a new option -C, which sends completion information to the
   5527 specified file descriptor.  For the most part, this is intended for
   5528 programs to use, although -C 0 will print a spinning character to the
   5529 stdout device, which may be useful for users who want to see something
   5530 happening while e2fsck goes about its business.
   5531 
   5532 Fixed a bug in e2fsck which could cause a core dump when it needs to
   5533 expand the /lost+found directory, and sometimes the bitmaps haven't
   5534 been merged in.  Also fixed a related bug where ext2fs_write_dir_block
   5535 was used to write out a non-directory block.  (Which would be bad on a
   5536 non-Intel platform with byte swapping going on.)
   5537 
   5538 Fixed bug in e2fsck where it would print a "programming error" message
   5539 instead of correctly identifying where a bad block was in used when
   5540 the bad block was in a non-primary superblock or block group
   5541 descriptor.  Also fixed a related bug when sparse superblocks are in
   5542 use and there is a bad block where a superblock or block group
   5543 descriptor would have been in a group that doesn't include a
   5544 superblock.
   5545 
   5546 Fixed a bug in e2fsck (really in libext2fs's dblist function) where if
   5547 the block group descriptor table is corrupt, it was possible to try to
   5548 allocate a huge array, fail, and then abort e2fsck.
   5549 ext2fs_get_num_dirs() now sanity checks the block group descriptor,
   5550 and subsitutes reasonable values if the descriptors are obviously bogus.
   5551 
   5552 If e2fsck finds a device file which has the immutable flag set and the
   5553 i_blocks beyond the normal device number are non-zero, e2fsck will
   5554 offer to remove it, since it's probably caused by garbage in the inode
   5555 table.
   5556 
   5557 When opening a filesystem, e2fsck specially checks for the EROFS error
   5558 code, and prints a specific error message to the user which is more
   5559 user friendly.
   5560 
   5561 If the filesystem revision is too high, change the e2fsck to print
   5562 that this is either because e2fsck is out of date, or because the
   5563 superblock is corrupt.  
   5564 
   5565 E2fsck now checks for directories that have duplicate '.' and '..'
   5566 entries, and fixes this corruption.
   5567 
   5568 E2fsck no longer forces a sync of the filesystem (with attendant sleep
   5569 calls) at all times.  The ext2fs_flush() function now performs a sync
   5570 only if it needed to write data blocks to disk.
   5571 
   5572 Fixed a minor bug in e2fsck's pass1b's file cloning function, where
   5573 certain errors would not be properly reported.
   5574 
   5575 Updated and expanded a few points in the man pages which users
   5576 complained wheren't explicit enough.
   5577 
   5578 Added special case byte-swapping code if compiling on the PowerPC, to
   5579 accomodate the strange big-endian variant of the ext2 filesystem that
   5580 was previously used on the PowerPC port.
   5581 
   5582 
   5583 Programmer's notes:
   5584 -------------------
   5585 
   5586 Removed C++ keywords from the ext2fs libraries so that it could be
   5587 compiled with C++.
   5588 
   5589 E2fsck's internal organization has now been massively reorganized so
   5590 that pass*.c don't have any printf statements.  Instead, all problems
   5591 are reported through the fix_problem() abstraction interface.  E2fsck
   5592 has also been revamped so that it can be called as a library from a
   5593 application.
   5594 
   5595 Added new fileio primitives in libext2fs for reading and writing
   5596 files on an unmounted ext2 filesystem.  This interface is now used by
   5597 debugfs.
   5598 
   5599 Added a new libext2fs function for mapping logical block numbers of
   5600 a file to a physical block number.
   5601 
   5602 Added a new libext2fs function, ext2fs_alloc_block(), which allocates
   5603 a block, zeros it, and updates the filesystem accounting records
   5604 appropriately.
   5605 
   5606 Added a new libext2fs function, ext2fs_set_bitmap_padding(), which
   5607 sets the padding of the bitmap to be all one's.  Used by e2fsck pass 5.
   5608 
   5609 The libext2fs functions now use a set of memory allocation wrapper
   5610 functions: ext2fs_get_mem, ext2fs_free_mem, and ext2fs_resize_mem,
   5611 instead of malloc, free, and resize.  This makes it easier for us to
   5612 be ported to strange environments where malloc, et. al. aren't
   5613 necessarily available.
   5614 
   5615 Change the libext2fs fucntion to return ext2-specific error codes
   5616 (EXT2_DIR_EXISTS and EXT2_DB_NOT_FOUND, for example) instead of using
   5617 and depending on the existence of system error codes (such as EEXIST
   5618 and ENOENT).
   5619 
   5620 Renamed io.h to ext2_io.h to avoid collision with other OS's header
   5621 files.
   5622 
   5623 Add protection against ext2_io.h and ext2fs.h being included multiple
   5624 times.
   5625 
   5626 The types used for memory lengths, etc. have been made more portable.
   5627 In generla, the code has been made 16-bit safe.  Added Mark
   5628 Habersack's contributed DOS disk i/o routines.
   5629 
   5630 Miscellaneous portability fixes, including not depending on char's
   5631 being signed.
   5632 
   5633 The io_channel structure has a new element, app_data, which is
   5634 initialized by the ext2fs routines to contain a copy of the filesystem
   5635 handle.
   5636 
   5637 ext2fs_check_directory()'s callback function may now return the error
   5638 EXT2_ET_CALLBACK_NOTHANDLED if it wishes ext2fs_check_directory() to
   5639 really do the checking, despite the presence of the callback function.
   5640 
   5641 
   5642 E2fsprosg 1.11 (June 17, 1997)
   5643 ==============================
   5644 
   5645 Fixed e2fsck to detect (previously ignored) conflicts between the
   5646 superblock or block group descriptors and block bitmaps, inode
   5647 bitmaps, and inode tables.
   5648 
   5649 Fixed bug in e2fsck so that when the message printed out when a block
   5650 or inode bitmap conflicts with other data, it has the correct group
   5651 number.
   5652 
   5653 Fixed bug in e2fsck and mke2fs where the blocksize wasn't being passed
   5654 to badblocks.  This meant that not all of the filesystem was being
   5655 tested for bad blocks! 
   5656 
   5657 Fixed an array boundary overrun case which cropped up in
   5658 ext2fs_badblocks_list_test when a user tried running "mke2fs -c 
   5659 -b 4096".
   5660 
   5661 Adjusted the number of columns printed by mke2fs when displaying the
   5662 superblock backups to avoid running over 80 columns when making a
   5663 really big filesystem.
   5664 
   5665 Fixed up the man pages for e2fsck, debugfs, badblocks, chattr,
   5666 dumpe2fs, fsck, mke2fs, and tune2fs (typos and other minor grammar
   5667 fixes), thanks to some suggestions from Bill Hawes (whawes (a] star.net).
   5668 
   5669 Programmer's notes:
   5670 -------------------
   5671 
   5672 Fixed install rule in lib/ss so that ss_err.h is actually getting
   5673 installed.
   5674 
   5675 Fixed bug in ext2fs_copy_bitmap; the destination bitmap wasn't getting
   5676 bassed back to the caller.
   5677 
   5678 Fixed bug in ext2fs_inode_scan_goto_blockgroup; it had not been
   5679 setting the current inode number (which meant this function wasn't
   5680 working at all).
   5681 
   5682 Fixed bug in ext2fs_resize_generic_bitmap; it had not be zeroing all
   5683 blocks in the bitmap when increasing the size of the bitmap.
   5684 
   5685 Changed the initial number of blocks allocated by ext2fs_init_dblist()
   5686 to be more realistic.
   5687 
   5688 Added a new function ext2fs_allocate_group_table, which sets up the
   5689 group descriptor information (and allocates inode and block bitmaps,
   5690 and inode tables for a particular group).  The function was created by
   5691 factoring out code form ext2fs_allocate_tables().
   5692 
   5693 Added a new function ext2fs_move_blocks which takes a bitmap of the
   5694 blocks to be moved, and moves them to another location on the
   5695 boardboard.
   5696 
   5697 Make the unix_io channel's io_channel_flush implementation calls sync()
   5698 to to flush the kernel buffers to disk.
   5699 
   5700 Added a new function ext2fs_dblist_count returns the number of
   5701 directory blocks in dblist.
   5702 
   5703 
   5704 E2fsprogs 1.10 (April 24, 1997)
   5705 ===============================
   5706 
   5707 Mke2fs once again defaults to creating revision #0 filesystems, since
   5708 people were complaining about breaking compatibility with 1.2 kernels.
   5709 Warning messages were added to the mke2fs and tune2fs man pages that
   5710 the sparse superblock option isn't supported by most kernels yet (1.2
   5711 and 2.0 both don't support parse superblocks.)
   5712 
   5713 Added new flag to mke2fs, -R <raid options>, which allows the user to
   5714 tell mke2fs about the RAID configuration of the filesystem.  Currently
   5715 the only supported raid option is "stride" which specifies the width
   5716 of the RAID stripe.
   5717 
   5718 Fixed bug in e2fsck where pass1b would bomb out if there were any
   5719 blocks marked bad in the inode table.
   5720 
   5721 Fixed rare bug in mke2fs where if the user had a very unlucky number
   5722 of blocks in a filesystem (probability less than .002) the resulting
   5723 filesystem would be corrupt in the last block group.
   5724 
   5725 Fixed bug where if e2fsck tried to allocate a block to fix a
   5726 filesystem corruption problem and the filesystem had no free blocks,
   5727 ext2fs_new_block() would loop forever.
   5728 
   5729 The configure script now checks explicitly to see if "-static" works,
   5730 since that can't be assumed to be true --- RedHat doesn't install
   5731 libc-static by default.
   5732 
   5733 Fixed bug in libext2's block iterator functions where under some
   5734 cirmcustances, file with holes would cause the bcount parameter to the
   5735 callback function to be incorrect.  This bug didn't affect any of
   5736 e2fsprogs programs, but it was discovered by Paul Mackerras, the
   5737 author of the PPC boot loader.
   5738 
   5739 Removed use of static variables to store the inode cache in libext2fs.
   5740 This caused problems if more than one filesystem was accessed via
   5741 libext2fs (static variables in libraries are generally a bad idea).
   5742 Again, this didn't affect e2fsprogs programs, but it was discovered by
   5743 Paul Mackerras.
   5744 
   5745 Fixed minor bugs and version code drift to assure that e2fsprogs 1.10
   5746 will compile cleanly with 1.2.13 kernels (even with a.out shared
   5747 libraries!)
   5748 
   5749 Programmer's notes:
   5750 -------------------
   5751 
   5752 Added new functions to duplicate an ext2 filesystem handle, and its
   5753 associated substructure.  New functions: ext2fs_dup_handle(),
   5754 ext2fs_copy_dblist(), ext2fs_badblocks_copy(), ext2fs_copy_bitmap().
   5755 Other structures, such as the io_channel and the inode_cache, now have
   5756 a ref count so that they only get freed when they are no longer used
   5757 by any filesystem handle.  (These functions were added as part of the
   5758 development effort for an ext2 resizer).
   5759 
   5760 E2fsprogs 1.09 (April 14, 1997)
   5761 ===============================
   5762 
   5763 Fixed bug in mke2fs (really in lib/ext2fs/initialize.c) which was
   5764 accidentally introduced in the 1.08 release.  The overhead calculation
   5765 was accidentally removed, which caused ext2fs_initialize() to not
   5766 notice when the filesystem size needed to be adjusted down because
   5767 there wasn't enough space in the last block group.
   5768 
   5769 Fixed bug in version parsing library routine; it was always parsing
   5770 the library version string, instead of using the passed-in string.
   5771 
   5772 Clarified chattr man page.
   5773 
   5774 E2fsprogs 1.08 (April 10, 1997)
   5775 ===============================
   5776 
   5777 E2fsck 1.07 was very slow when checking very large filesystems with a
   5778 lot of files that had hard links (i.e., news spools).  This was fixed
   5779 by seriously revamping the icount abstraction.  Added a formal test
   5780 suite for the icount abstraction.
   5781 
   5782 Debugfs now has a "-l" option to the "ls" command, which lists the
   5783 inode number, permissions, owner, group, size, and name of the files
   5784 in the directory.
   5785 
   5786 Fix a bug in e2fsck where when a directory had its blocks moved to
   5787 another location during the pass 1b processing, the directory block
   5788 list wasn't updated, so pass 2 wouldn't check (and correct) the
   5789 correct directory block.
   5790 
   5791 E2fsck will now treat inodes which contain blocks which are claimed by
   5792 the filesystem metadata by treating them as multiply claimed blocks.
   5793 This way, the data in those blocks can be copied to a new block during
   5794 the pass 1b--1d processing.
   5795 
   5796 E2fsck will attempt to determine the correct superblock number and
   5797 display it in the diagnostic and warning messages if possible.
   5798 
   5799 Add support for a new (incompatible) feature, "sparse_super".  This
   5800 feature reduces the number of blocks which contain copies of backup
   5801 superblocks and block group descriptors.  (It is only an incompatible
   5802 feature because of a bug in ext2_free_blocks.)  mke2fs and tune2fs now
   5803 support a new -s option; e2fsck will recognize filesystems built with
   5804 this feature turned on.
   5805 
   5806 E2fsck now checks the library to make sure is the correct version,
   5807 using new library functions.  (This helps to diagnose incorrectly
   5808 installed e2fsprogs distributions.)
   5809 
   5810 Dumpe2fs now prints more information; its now prints the the
   5811 filesystem revision number, the filesystem sparse_super feature (if
   5812 present), the block ranges for each block group, and the offset from
   5813 the beginning of the block group.
   5814 
   5815 Mke2fs now distributes the inode and block bitmap blok so that the
   5816 won't be concentrated in one or two disks in RAID/striping setups.
   5817 Also, if the user chooses a 2k or 4k block group, mke2fs will try to
   5818 choose the largest blocks per group that be chosen.  (For 2k blocks,
   5819 you can have up to 16384 blocks/group; for 4k blocks, you can have up
   5820 to 32768 blocks/group.)  Previously mke2fs would not allow
   5821 specification of more than 8192 blocks per group, even if you were
   5822 using a 2k or 4k block group.
   5823 
   5824 Programmer's notes:
   5825 -------------------
   5826 
   5827 Added a new function ext2fs_create_icount2() which takes a "hint"
   5828 argument.  This hint argument presets the icount array with the list
   5829 of inodes which actually need to be in the icount array.  This really
   5830 helps to speed up e2fsck.
   5831 
   5832 Added a new function ext2fs_icount_validate() which checks the rep
   5833 invariant for the icount structure.  This is used mostly for testing.
   5834 
   5835 The error mesasage given when a bad inode number is passed to
   5836 test_generic_bitmap to reflect EXT2FS_TEST_ERROR (instead of
   5837 EXT2FS_UNMARK_ERROR).
   5838 
   5839 Added a new function ext2fs_set_dir_block which sets the block of a
   5840 dblist entry, given the directory inode and blockcnt.
   5841 
   5842 Added a new function ext2fs_get_library_version() which returns the
   5843 current library version, and ext2fs_parse_version_string() which
   5844 returns a version number based on a e2fsprogs version string.
   5845 
   5846 The icount functions will return EINVAL if the passed in inode number
   5847 is out of bounds.
   5848 
   5849 E2fsprogs 1.07 (March 9, 1997)
   5850 ==============================
   5851 
   5852 E2fsck is now uses much less memory when checking really large
   5853 filesystems (or rather, filesystems with a large number of inodes).
   5854 Previously a filesystem with 1 million inodes required 4 megabytes of
   5855 memory to store inode count statistics; that storage requirement has
   5856 now been reduced to roughly half a megabyte.
   5857 
   5858 E2fsck can now properly deal with bad blocks appearing inside the
   5859 inode table.  Instead of trying to relocate the inode table (which
   5860 often failed because there wasn't enough space), the inodes in the bad
   5861 block are marked as in use.
   5862 
   5863 E2fsck will automatically try to use the backup superblocks if the
   5864 primary superblocks have a bad magic number or have missing meta-data
   5865 blocks (or meta-data blocks which are out of range).
   5866 
   5867 E2fsck's pass 3 has been made more efficient; most noticeable on
   5868 filesystems with a very large number of directories.
   5869 
   5870 Completely revamped e2fsck's system of printing problem reports.  It
   5871 is now table driven, to make them more easily customizeable and
   5872 extendable.  Error messages which can be printed out during preen mode
   5873 are now one line long.
   5874 
   5875 Fixed e2fsck's filesystem swapping code so that it won't try to swap
   5876 fast symbolic links or deleted files.
   5877 
   5878 Fixed e2fsck core dumping when fixing a filesystem which has no
   5879 directories (not even a root directory).
   5880 
   5881 Added a check to e2fsck to make sure that the length of every
   5882 directory entry is a multiple of 4 (since the kernel complains if it
   5883 isn't).
   5884 
   5885 Added a check to e2fsck to make sure that a directory entry isn't a
   5886 link to the root directory, since that isn't allowed.
   5887 
   5888 Added a check to e2fsk to now make sure the '.' and '..' directory
   5889 entries are null terminated, since the 2.0 kernel requires it.
   5890 
   5891 Added check to write_bitmaps() to make sure the superblock doesn't get
   5892 trashed if the inode or block bitmap is marked as being block zero.
   5893 
   5894 Added checking of the new feature set fields in the superblock, to
   5895 avoid dealing with new filesystem features that this package wasn't
   5896 set up to handle.
   5897 
   5898 Fixed a fencepost error in ext2fs_new_block() which would occasionally
   5899 try to allocate a block beyond the end of a filesystem.
   5900 
   5901 When the UUID library picks a random IEEE 802 address (because it
   5902 can't find one from a network card), it sets the multicast bit, to
   5903 avoid conflicting with a legitimate IEEE 802 address.
   5904 
   5905 Mke2fs now sets the root directory's owner to be the real uid of the
   5906 user running mke2fs.  If the real uid is non-zero, it also sets
   5907 the group ownership of the root directory to be the real group-id of
   5908 the user running mke2fs.
   5909 
   5910 Mke2fs now has more intelligent error checking when it is given a
   5911 non-existent device.
   5912 
   5913 When badblocks is given the -vv option, it now updates the block that
   5914 it is currently testing on every block.
   5915 
   5916 Fixed a bug in fsck where it wouldn't modify the PATH envirnoment
   5917 currently correctly if PATH wasn't already set.
   5918 
   5919 Shared libraries now built with dependencies.  This allows the shared
   5920 library files to be used with dlopen(); it also makes the transition
   5921 to libc 6 easier, since ld.so can tell which libc a particular shared
   5922 library expects to use.
   5923 
   5924 Programmer's notes:
   5925 -------------------
   5926 
   5927 Added new abstraction (defined in dblist.c) for maintaining a list of
   5928 blocks which belongs to directories.  This is used in e2fsck and other
   5929 programs which need to iterate over all directories.
   5930 
   5931 Added new functions which test to see if a contiguous range of blocks
   5932 (or inodes) are available.  (ext2fs_*_bitmap_range).
   5933 
   5934 Added new function (ext2_inode_has_valid_blocks) which returns true if
   5935 an inode has valid blocks.  (moved from e2fsck code).
   5936 
   5937 Added new function (ext2fs_allocate_tables) which allocates the
   5938 meta-data blocks as part of initializing a filesystem.  (moved from
   5939 mke2fs code).
   5940 
   5941 Added a new I/O manager for testing purposes.  It will either allow a
   5942 program to intercept I/O requests, or print debugging messages to
   5943 trace the activity of a program using the I/O manager.
   5944 
   5945 The badblocks_list functions now store the bad blocks in a sorted
   5946 order, and use a binary search to speed up badblocks_list_test.
   5947 
   5948 The inode scan function ext2fs_get_next_inode() may now return a soft
   5949 error returns: MISSING_INODE_TABLE and BAD_BLOCK_IN_INODE_TABLE in
   5950 those cases where part of an inode table is missing or there is a bad
   5951 block in the inode table.  
   5952 
   5953 Added a new function (ext2fs_block_iterate2) which adds new arguments to
   5954 the callback function to return a pointer (block and offset) to the
   5955 reference of the block.
   5956 
   5957 Added new function (ext2fs_inode_scan_goto_blockgroup) which allows an
   5958 application to jump to a particular block group while doing an inode
   5959 scan.
   5960 
   5961 The badblocks list functions were renamed from badblocks_* to
   5962 ext2fs_badblocks_*.  Backwards compatibility functions are available
   5963 for now, but programs should be modified to use the new interface.
   5964 
   5965 Some of the library functions were reorganized into separate files to
   5966 reduce the size of some programs which statically link against the
   5967 ext2 library.
   5968 
   5969 Put in some miscellaneous fixes for the Alpha platform.
   5970 
   5971 
   5972 E2fsprogs 1.06 (October 7, 1996)
   5973 ================================
   5974 
   5975 Fixed serious bug in e2fsck: if the block descriptors are bad, don't
   5976 smash the backup copies in ext2fs_close().  (The problem was that when
   5977 e2fsck -p discovered the problem, while it was closing the filesystem
   5978 and exiting, it was also blowing away the backup superblocks on the
   5979 disk, which was less than friendly.)  We now make it the case that we
   5980 only write out the backup superblock and the back block descriptors if
   5981 the filesystem is completely free from problems.
   5982 
   5983 Fixed a bug in block_interate in the lib/ext2fs library which caused
   5984 e2fsck to fail on GNU Hurd-created filesystems.
   5985 
   5986 Add support for Linux/FT's bootloader, which actually uses
   5987 EXT2_BOOT_LOADER, and sets its mode bits which caused e2fsck to want
   5988 to clear the inode.
   5989 
   5990 Add support for the "A" (no atime update) attribute.  (Note: this
   5991 attribute is not yet in production kernels.)
   5992 
   5993 The test suite is not automatically run when doing a "make all" from
   5994 the top level directory.  Users should manually run "make check" if
   5995 they wish to run the test suite.
   5996 
   5997 Upon a preenhalt(), make the printed message more explicit that
   5998 running e2fsck "MANAULLY" means without the -p or -a options.
   5999 
   6000 In e2fsck, if a disconnected inode is zero-length, offer to clear it
   6001 instead of offering to connect it to lost+found.
   6002 
   6003 In e2fsck, if a filesystem was just unmounted uncleanly, and needs
   6004 e2fsck to be run over it, change e2fsck to explicitly display this
   6005 fact.
   6006 
   6007 For dumpe2fs and e2fsck, cause the -V option to print out which
   6008 version of the ext2fs library is actually getting used.  (This will
   6009 help detect mismatches of using a 1.06 utility with a 1.05 library,
   6010 etc.)
   6011 
   6012 Programmers' notes:
   6013 -------------------
   6014 
   6015 EXT2_SWAP_BYTES was changed to EXT2_FLAG_SWAP_BYTES, which better fits
   6016 the naming convention.
   6017 
   6018 In ext2fs_initialize(), make sure the description for the inode bitmap
   6019 is correctly initialize.
   6020 
   6021 Fixed minor type typo in ext2fs_allocate_generic_bitmap();
   6022 
   6023 E2fsprogs 1.05 (September 7, 1996)
   6024 ==================================
   6025 
   6026 Add support for new fields in the ext2 superblock --- volume name,
   6027 volume UUID, and last mounted field.  Dumpe2fs displays these fields,
   6028 tune2fs and mke2fs allows you to set them.  E2fsck will automatically
   6029 generate a UUID for those volumes that don't have them.  
   6030 
   6031 Put in support for e2fsck to recognize HURD specific ext2 features ---
   6032 most notably, the translator block.  The e2fsprogs tools will now use
   6033 the creator_os field in the superblock to correctly handle different
   6034 OS-specific variants of the ext2 filesystem.
   6035 
   6036 E2fsck now fixes inodes which have a the deletion time set, but which
   6037 have a non-zero i_link_count field by offering to clear the deletion
   6038 time.  Previously e2fsck assumed that the inode was deleted (per 0.3c
   6039 ext2 kernel behavior) and offered to unlink the file.
   6040 
   6041 If e2fsck sets the clean bit, but nothing else, set the exit code
   6042 FSCK_NONDESTRUCT.  After all, e2fsck did fix a filesystem error --- it
   6043 set the filesystem valid bit when it was previously cleared.  :-) This
   6044 was needed to make the HURD fsck driver happy.
   6045 
   6046 If the  user  refuses to attach an  unattached  inode, e2fsck  will no
   6047 longer set the inode's link count.  Otherwise, the  inode would end up
   6048 getting marked as unused, which might cause loss of data later.
   6049 
   6050 Make the message issued by e2fsck when the superblock is corrupt less
   6051 confusing for users.  It now mentions that another reason for the
   6052 "corrupt superblock" message might be that the partition might not be
   6053 an ext2 filesystem at all (it might swap, msdos filesystem, ufs, etc.)
   6054 
   6055 Make the libext2 library more robuest so that e2fsck won't coredump on
   6056 an illegal superblock where the blocksize is zero.  (f_crashdisk is
   6057 the test case).
   6058 
   6059 By default, create filesystems where the default checkinterval is 6
   6060 months (180 days).  Linux servers can be robust enough that 20 reboots
   6061 can be a long, long time.
   6062 
   6063 Added configure flag --enable-old-bitops, which forces the bitops to
   6064 use the old (native) bitmask operations.  By default on the sparc
   6065 platform, the standard ext2 bit ordering is now used.
   6066 
   6067 Added a new feature to e2fsck to byte-swap filesystems; this can be
   6068 used to convert old m68k filesystems to use the standard byte-order
   6069 storage for the superblock, inodes, and directory blocks.  This
   6070 function is invoked by using the '-s' option to e2fsck.
   6071 
   6072 Debugfs's "dump" command has been enhanced so that it writes out the
   6073 exact size of the file so that the nulls at the end of the file are
   6074 eliminated.  The command also accept a new "-p" option which will
   6075 attempt preserve to preserve the ownernship, permissions, and
   6076 file modification/access times.
   6077 
   6078 Debugfs has two new options, -f and -R.  The -R option allows the user
   6079 to execute a single debugfs command from the command line.  The -f
   6080 option allows the user to specify a "command file" containing debugfs
   6081 commands which will get executed.
   6082 
   6083 Dumpe2fs now pretty prints the check interval, instead of just
   6084 printing the check interval as a number of seconds.
   6085 
   6086 Fix bugs in debugfs: the params command when no filesystem is opened
   6087 no longer causes a core dump.  It is now possible to unlink a file
   6088 when a pathame containing a '/' is specified.
   6089 
   6090 Tune2fs has a new -C option which sets the number of times the
   6091 filesystem has been mounted.
   6092 
   6093 Fix the chattr '-v' option so that it actually works.  Chattr was
   6094 being buggy about the -v option parsing.
   6095 
   6096 Programmers' notes:
   6097 -------------------
   6098 
   6099 The directory lib/uuid contains a set of library routines to generate
   6100 DCE compatible UUIDs.  
   6101 
   6102 Extended ext2fs_namei() to handle symbolic links.  Added new function
   6103 ext2fs_nami_follow() which will follow last symbolic link in the case
   6104 where the pathname points to a sym link.
   6105 
   6106 The ext2fs_block_iterate function will now return the HURD translator
   6107 block, if present.  The new flag BLOCK_FLAG_DATA_ONLY will cause the
   6108 iterator to return data blocks only.  The ext2fs.h file now defines
   6109 constants BLOCK_COUNT_IND, BLOCK_COUNT_DIND, BLOCK_COUNT_TIND, and
   6110 BLOCK_COUNT_TRANSLATOR, which are the magic values passed in the block
   6111 count field of the iterator callback function.
   6112 
   6113 The test script driver now takes an optional second argument, which is
   6114 the test case to be run.  This allows you to run a test case without
   6115 needing to run the entire test suite.
   6116 
   6117 On Linux ELF systems, install the .so files in the correct places
   6118 (/usr/lib).  The .so files must be stored in the same directory as the
   6119 .a files.
   6120 
   6121 Fixed miscellaneous HURD compilation issues with header file being
   6122 included in the right order.
   6123 
   6124 Fixed debugfs so that it resets optind to zero, not one, since setting
   6125 optind to zero is more correct.
   6126 
   6127 
   6128 E2fsprogs 1.04 (May 16, 1996)
   6129 =============================
   6130 
   6131 First "official" (1.03 was a limited release only) to support building
   6132 e2fsprogs under Linux 2.0 kernels (as well as late model 1.3 and 1.99
   6133 kernels).
   6134 
   6135 This package includes a RPM specs file, that it can be built using the
   6136 RedHat Package Manager.
   6137 
   6138 E2fsck now prints a hint that if there are lots of incorrectly located
   6139 inode bitmaps, block bitmaps, and inode table blocks, the user might
   6140 want to try using e2fsck -b 8193 first, to see if that fares any
   6141 better.
   6142 
   6143 For ext2 filesystem written with the hurd, debugfs will now print out
   6144 the translator field when printing an inode structure.
   6145 
   6146 Lots of miscellaneous linking/installation cleanups:
   6147 
   6148   Libraries are now linked using a relative pathname, instead of
   6149   relying on -L working correct.  It doesn't, in many cases, including
   6150   current versions of GNU ld.  This guarantees that the build tree is
   6151   linking with the right libraries, instead of the ones installed in
   6152   /usr/lib.
   6153 
   6154   Header files, man pages, and the et/ss shell scripts are now
   6155   generated using a custom substitution script, instead of relying on
   6156   the configure script.  This prevents needless recompilation of
   6157   files; in addition, the custom substitution script is much faster.
   6158 
   6159   e2fsck may now be linked dynamically, by using the
   6160   --enable-dynamic-e2fsck flag to configure.  This is not recommended,
   6161   since it increases e2fsck's dependence on other files, but some
   6162   people need to save disk space, and other critical programs on their
   6163   systems were being linked dynamically anyway.
   6164 
   6165   Programs such as fsck which didn't need to be linked against
   6166   libext2fs (or mke2fs which didn't need to be linked against libe2p)
   6167   only link against libraries they actually need.  Otherwise, those
   6168   programs would require the presense of libraries that otherwise
   6169   could be removed from a rescuse diskette.
   6170 
   6171   The ss include files are now installed correctly so they can
   6172   actually be used by another package.
   6173 
   6174   If the profiling libraries are built, they are now installed on a
   6175   "make install-libs".
   6176 
   6177 
   6178 E2fsprogs 1.03 (March 27, 1996)
   6179 ===============================
   6180 
   6181 Change the m68k bit numbering for bitmasks to match the bit numbering
   6182 used by all other ext2 implementations.  (This change was requested by
   6183 the m68k kernel development team.)
   6184 
   6185 Support (in-development) filesystem format revision which supports
   6186 (among other things) dynamically sized inodes.
   6187 
   6188 Fixed a bug in the ext2 library so that an intelligent error is
   6189 returned if mke2fs is run with a ridiculously small number of blocks
   6190 for a partition.
   6191 
   6192 Fixed a bug in the ext2 library which required that the device be
   6193 openable in read/write mode in order to determine its size.  This
   6194 caused e2fsck -n to require read/write access when it was not
   6195 previously necessary.
   6196 
   6197 Fixed a bug in e2fsck which casued it to occasionally fail the test
   6198 suite depending on which version of the floating point library it was
   6199 using.
   6200 
   6201 Fixed a bug in e2fsck so that it now halts with a fatal error when
   6202 certain superblock consistency checks fail.  Previously it continued
   6203 running e2fsck, with some potential confusing/damaging consequences.
   6204 
   6205 Added new flag to fsck which allows the root to be checked in parallel
   6206 with other filesytems.  This is not the safest thing in the world to
   6207 do, but some system administrators really wanted it.
   6208 
   6209 Fixed -Wall flames in lib/ss.
   6210 
   6211 
   6212 E2fsprogs 1.02 (January 16, 1996)
   6213 =================================
   6214 
   6215 Fix to allow e2fsprogs to be compiled on recent 1.3 (pl45+) kernels.
   6216 
   6217 Change e2fsck to print statistics of how many non-contiguous files are
   6218 on the system.  Note that a file which is larger than 8k blocks, it is
   6219 guaranteed to be non-contiguous.
   6220 
   6221 In mke2fs, print a warning message if a user tries to format a whole
   6222 disk (/dev/hda versus /dev/hda1).  If a user really wants to format a
   6223 whole disk, the -F (force) option forces mke2fs to format a whole disk
   6224 as a filesytem.
   6225 
   6226 Fix a bug in fsck where in some cases it might start checking
   6227 partitions in the next pass before it finishes checking partitions in
   6228 the current pass.  This still won't cause two partitions on the same
   6229 disk will be checked, so it's rarely a problem in real life.
   6230 
   6231 Patch lsattr so that it won't hang when checking a named pipe.
   6232 
   6233 Minor compilation fixes:
   6234 	* Fix the order of libraries that were linked in debugfs.
   6235 	* Allow the sources to be compiled with -ansi turned on.
   6236