1 mke2fs -F -O resize_inode -o Linux -b 1024 -g 1024 test.img 16384 2 Filesystem label= 3 OS type: Linux 4 Block size=1024 (log=0) 5 Fragment size=1024 (log=0) 6 Stride=0 blocks, Stripe width=0 blocks 7 4096 inodes, 16384 blocks 8 819 blocks (5.00%) reserved for the super user 9 First data block=1 10 Maximum filesystem blocks=8421376 11 16 block groups 12 1024 blocks per group, 1024 fragments per group 13 256 inodes per group 14 Superblock backups stored on blocks: 15 1025, 3073, 5121, 7169, 9217 16 17 Allocating group tables: done 18 Writing inode tables: done 19 Writing superblocks and filesystem accounting information: done 20 21 Pass 1: Checking inodes, blocks, and sizes 22 Pass 2: Checking directory structure 23 Pass 3: Checking directory connectivity 24 Pass 4: Checking reference counts 25 Pass 5: Checking group summary information 26 test_filesys: 11/4096 files (0.0% non-contiguous), 2107/16384 blocks 27 Exit status is 0 28 ----------------------------------------------- 29 30 debugfs -R ''set_inode_field <7> block[2] 42'' -w test.img 31 Exit status is 0 32 Resize inode not valid. Recreate? yes 33 34 Pass 1: Checking inodes, blocks, and sizes 35 Pass 2: Checking directory structure 36 Pass 3: Checking directory connectivity 37 Pass 4: Checking reference counts 38 Pass 5: Checking group summary information 39 Free blocks count wrong for group #0 (717, counted=718). 40 Fix? yes 41 42 Free blocks count wrong (14276, counted=14277). 43 Fix? yes 44 45 46 test_filesys: ***** FILE SYSTEM WAS MODIFIED ***** 47 test_filesys: 11/4096 files (0.0% non-contiguous), 2107/16384 blocks 48 Exit status is 1 49 Pass 1: Checking inodes, blocks, and sizes 50 Pass 2: Checking directory structure 51 Pass 3: Checking directory connectivity 52 Pass 4: Checking reference counts 53 Pass 5: Checking group summary information 54 test_filesys: 11/4096 files (0.0% non-contiguous), 2107/16384 blocks 55 Exit status is 0 56 ----------------------------------------------- 57 58 debugfs -R ''clri <7>'' -w test.img 59 Exit status is 0 60 Resize inode not valid. Recreate? yes 61 62 Pass 1: Checking inodes, blocks, and sizes 63 Pass 2: Checking directory structure 64 Pass 3: Checking directory connectivity 65 Pass 4: Checking reference counts 66 Pass 5: Checking group summary information 67 Free blocks count wrong for group #0 (717, counted=718). 68 Fix? yes 69 70 Free blocks count wrong (14276, counted=14277). 71 Fix? yes 72 73 74 test_filesys: ***** FILE SYSTEM WAS MODIFIED ***** 75 test_filesys: 11/4096 files (0.0% non-contiguous), 2107/16384 blocks 76 Exit status is 1 77 Pass 1: Checking inodes, blocks, and sizes 78 Pass 2: Checking directory structure 79 Pass 3: Checking directory connectivity 80 Pass 4: Checking reference counts 81 Pass 5: Checking group summary information 82 test_filesys: 11/4096 files (0.0% non-contiguous), 2107/16384 blocks 83 Exit status is 0 84 ----------------------------------------------- 85 86 debugfs -R ''set_inode_field <7> bmap[524] 57'' -w test.img 87 Exit status is 0 88 Resize inode not valid. Recreate? yes 89 90 Pass 1: Checking inodes, blocks, and sizes 91 Pass 2: Checking directory structure 92 Pass 3: Checking directory connectivity 93 Pass 4: Checking reference counts 94 Pass 5: Checking group summary information 95 Free blocks count wrong for group #0 (717, counted=718). 96 Fix? yes 97 98 Free blocks count wrong (14276, counted=14277). 99 Fix? yes 100 101 102 test_filesys: ***** FILE SYSTEM WAS MODIFIED ***** 103 test_filesys: 11/4096 files (0.0% non-contiguous), 2107/16384 blocks 104 Exit status is 1 105 Pass 1: Checking inodes, blocks, and sizes 106 Pass 2: Checking directory structure 107 Pass 3: Checking directory connectivity 108 Pass 4: Checking reference counts 109 Pass 5: Checking group summary information 110 test_filesys: 11/4096 files (0.0% non-contiguous), 2107/16384 blocks 111 Exit status is 0 112 ----------------------------------------------- 113 114 debugfs -R ''set_super_value reserved_gdt_blocks 15679'' -w test.img 115 Exit status is 0 116 ext2fs_check_desc: Corrupt group descriptor: bad block for block bitmap 117 ../e2fsck/e2fsck: Group descriptors look bad... trying backup blocks... 118 Pass 1: Checking inodes, blocks, and sizes 119 Pass 2: Checking directory structure 120 Pass 3: Checking directory connectivity 121 Pass 4: Checking reference counts 122 Pass 5: Checking group summary information 123 124 test_filesys: ***** FILE SYSTEM WAS MODIFIED ***** 125 test_filesys: 11/4096 files (0.0% non-contiguous), 2107/16384 blocks 126 Exit status is 1 127 ----------------------------------------------- 128 129 debugfs -R ''set_super_value reserved_gdt_blocks 32'' -w test.img 130 Exit status is 0 131 Pass 1: Checking inodes, blocks, and sizes 132 Pass 2: Checking directory structure 133 Pass 3: Checking directory connectivity 134 Pass 4: Checking reference counts 135 Pass 5: Checking group summary information 136 Block bitmap differences: -(35--258) -(1059--1282) -(3107--3330) -(5155--5378) -(7203--7426) -(9251--9474) 137 Fix? yes 138 139 Free blocks count wrong for group #0 (718, counted=942). 140 Fix? yes 141 142 Free blocks count wrong for group #1 (732, counted=956). 143 Fix? yes 144 145 Free blocks count wrong for group #3 (732, counted=956). 146 Fix? yes 147 148 Free blocks count wrong for group #5 (732, counted=956). 149 Fix? yes 150 151 Free blocks count wrong for group #7 (732, counted=956). 152 Fix? yes 153 154 Free blocks count wrong for group #9 (732, counted=956). 155 Fix? yes 156 157 Free blocks count wrong (14277, counted=15621). 158 Fix? yes 159 160 161 test_filesys: ***** FILE SYSTEM WAS MODIFIED ***** 162 test_filesys: 11/4096 files (0.0% non-contiguous), 763/16384 blocks 163 Exit status is 1 164 Pass 1: Checking inodes, blocks, and sizes 165 Pass 2: Checking directory structure 166 Pass 3: Checking directory connectivity 167 Pass 4: Checking reference counts 168 Pass 5: Checking group summary information 169 test_filesys: 11/4096 files (0.0% non-contiguous), 763/16384 blocks 170 Exit status is 0 171
