1 debugfs create special files 2 mke2fs -Fq -b 1024 test.img 512 3 Exit status is 0 4 debugfs -R ''stat foo'' -w test.img 5 Inode: 12 Type: symlink Mode: 0777 Flags: 0x0 6 Generation: 0 Version: 0x00000000 7 User: 0 Group: 0 Size: 3 8 File ACL: 0 Directory ACL: 0 9 Links: 1 Blockcount: 0 10 Fragment: Address: 0 Number: 0 Size: 0 11 ctime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 12 atime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 13 mtime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 14 Fast_link_dest: bar 15 Exit status is 0 16 debugfs -R ''stat foo2'' -w test.img 17 Inode: 13 Type: symlink Mode: 0777 Flags: 0x0 18 Generation: 0 Version: 0x00000000 19 User: 0 Group: 0 Size: 80 20 File ACL: 0 Directory ACL: 0 21 Links: 1 Blockcount: 2 22 Fragment: Address: 0 Number: 0 Size: 0 23 ctime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 24 atime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 25 mtime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 26 BLOCKS: 27 (0):28 28 TOTAL: 1 29 30 Exit status is 0 31 debugfs -R ''block_dump 28'' -w test.img 32 0000 3132 3334 3536 3738 3930 3132 3334 3536 1234567890123456 33 0020 3738 3930 3132 3334 3536 3738 3930 3132 7890123456789012 34 0040 3334 3536 3738 3930 3132 3334 3536 3738 3456789012345678 35 0060 3930 3132 3334 3536 3738 3930 3132 3334 9012345678901234 36 0100 3536 3738 3930 3132 3334 3536 3738 3930 5678901234567890 37 0120 0000 0000 0000 0000 0000 0000 0000 0000 ................ 38 * 39 40 Exit status is 0 41 debugfs -R ''stat pipe'' -w test.img 42 Inode: 14 Type: FIFO Mode: 0000 Flags: 0x0 43 Generation: 0 Version: 0x00000000 44 User: 0 Group: 0 Size: 0 45 File ACL: 0 Directory ACL: 0 46 Links: 1 Blockcount: 0 47 Fragment: Address: 0 Number: 0 Size: 0 48 ctime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 49 atime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 50 mtime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 51 BLOCKS: 52 53 Exit status is 0 54 debugfs -R ''stat sda'' -w test.img 55 Inode: 15 Type: block special Mode: 0000 Flags: 0x0 56 Generation: 0 Version: 0x00000000 57 User: 0 Group: 0 Size: 0 58 File ACL: 0 Directory ACL: 0 59 Links: 1 Blockcount: 0 60 Fragment: Address: 0 Number: 0 Size: 0 61 ctime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 62 atime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 63 mtime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 64 Device major/minor number: 08:00 (hex 08:00) 65 Exit status is 0 66 debugfs -R ''stat null'' -w test.img 67 Inode: 16 Type: character special Mode: 0000 Flags: 0x0 68 Generation: 0 Version: 0x00000000 69 User: 0 Group: 0 Size: 0 70 File ACL: 0 Directory ACL: 0 71 Links: 1 Blockcount: 0 72 Fragment: Address: 0 Number: 0 Size: 0 73 ctime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 74 atime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 75 mtime: 0x50f560e0 -- Tue Jan 15 14:00:00 2013 76 Device major/minor number: 01:03 (hex 01:03) 77 Exit status is 0 78 e2fsck -yf -N test_filesys 79 Pass 1: Checking inodes, blocks, and sizes 80 Pass 2: Checking directory structure 81 Pass 3: Checking directory connectivity 82 Pass 4: Checking reference counts 83 Pass 5: Checking group summary information 84 test_filesys: 16/64 files (0.0% non-contiguous), 29/512 blocks 85 Exit status is 0 86
