| ../e2fsck/e2fsck: Superblock invalid, trying backup blocks... | |
| ../e2fsck/e2fsck: The ext2 superblock is corrupt while trying to open ./test.img | |
| The superblock could not be read or does not describe a correct ext2 | |
| filesystem. If the device is valid and it really contains an ext2 | |
| filesystem (and not swap or ufs or something else), then the superblock | |
| is corrupt, and you might try running e2fsck with an alternate superblock: | |
| e2fsck -b 8193 <device> | |
| Exit status is 8 |