1 ext2fs_open2: The ext2 superblock is corrupt
2 ../e2fsck/e2fsck: Superblock invalid, trying backup blocks...
3 ../e2fsck/e2fsck: The ext2 superblock is corrupt while trying to open test.img
4 ../e2fsck/e2fsck: Trying to load superblock despite errors...
5 First_meta_bg is too big. (2, max value 1). Clear? yes
7 Pass 1: Checking inodes, blocks, and sizes
8 Pass 2: Checking directory structure
9 Pass 3: Checking directory connectivity
10 Pass 4: Checking reference counts
11 Pass 5: Checking group summary information
12 Block bitmap differences: -3
15 Free blocks count wrong for group #0 (79, counted=80).
18 Free blocks count wrong (79, counted=80).
22 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
23 test_filesys: 11/16 files (0.0% non-contiguous), 20/100 blocks