1tune2fs metadata_csum test 2Creating filesystem with 524288 1k blocks and 65536 inodes 3Superblock backups stored on blocks: 4 8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409 5 6Allocating group tables: done 7Writing inode tables: done 8Creating journal (16384 blocks): done 9Creating 477 huge file(s) with 1024 blocks each: done 10Writing superblocks and filesystem accounting information: done 11 12Pass 1: Checking inodes, blocks, and sizes 13Pass 2: Checking directory structure 14Pass 3: Checking directory connectivity 15Pass 4: Checking reference counts 16Pass 5: Checking group summary information 17 18Exit status is 0 19Pass 1: Checking inodes, blocks, and sizes 20Pass 2: Checking directory structure 21Pass 3: Checking directory connectivity 22Pass 3A: Optimizing directories 23Pass 4: Checking reference counts 24Pass 5: Checking group summary information 25 26 27 28Change in FS metadata: 29@@ -10,7 +10,7 @@ 30 Inode count: 65536 31 Block count: 524288 32 Reserved block count: 26214 33-Free blocks: 570 34+Free blocks: 567 35 Free inodes: 65047 36 First block: 1 37 Block size: 1024 38@@ -47,8 +47,8 @@ 39 Block bitmap at 262 (+261) 40 Inode bitmap at 278 (+277) 41 Inode table at 294-549 (+293) 42- 21 free blocks, 535 free inodes, 3 directories, 535 unused inodes 43- Free blocks: 4414-4434 44+ 18 free blocks, 535 free inodes, 3 directories, 535 unused inodes 45+ Free blocks: 4417-4434 46 Free inodes: 490-1024 47 Group 1: (Blocks 8193-16384) [INODE_UNINIT] 48 Backup superblock at 8193, Group descriptors at 8194-8197 49Pass 1: Checking inodes, blocks, and sizes 50Pass 2: Checking directory structure 51Pass 3: Checking directory connectivity 52Pass 4: Checking reference counts 53Pass 5: Checking group summary information 54 55Exit status is 0 56