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