1*** e2fsck 2ext2fs_open2: Bad magic number in super-block 3../e2fsck/e2fsck: Superblock invalid, trying backup blocks... 4../e2fsck/e2fsck: Bad magic number in super-block while trying to open test.img 5 6The superblock could not be read or does not describe a valid ext2/ext3/ext4 7filesystem. If the device is valid and it really contains an ext2/ext3/ext4 8filesystem (and not swap or ufs or something else), then the superblock 9is corrupt, and you might try running e2fsck with an alternate superblock: 10 e2fsck -b 8193 <device> 11 or 12 e2fsck -b 32768 <device> 13 14test.img contains a xfs file system labelled 'test_filsys' 15*** debugfs 16*** tune2fs 17../misc/tune2fs: Bad magic number in super-block while trying to open test.img 18test.img contains a xfs file system labelled 'test_filsys' 19*** mke2fs 20128-byte inodes cannot handle dates beyond 2038 and are deprecated 21Creating filesystem with 16384 1k blocks and 4096 inodes 22Superblock backups stored on blocks: 23 8193 24 25