2 ext2fs_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 ../e2fsck/e2fsck: Trying to load superblock despite errors...
6 ext2fs_open2: Bad magic number in super-block
7 ../e2fsck/e2fsck: Superblock invalid, trying backup blocks...
8 ../e2fsck/e2fsck: Bad magic number in super-block while trying to open test.img
10 The superblock could not be read or does not describe a valid ext2/ext3/ext4
11 filesystem. If the device is valid and it really contains an ext2/ext3/ext4
12 filesystem (and not swap or ufs or something else), then the superblock
13 is corrupt, and you might try running e2fsck with an alternate superblock:
14 e2fsck -b 8193 <device>
16 e2fsck -b 32768 <device>
18 test.img contains a xfs file system labelled 'test_filsys'
20 test.img: Bad magic number in super-block while opening filesystem
21 Checksum errors in superblock! Retrying...
22 test.img contains a xfs file system labelled 'test_filsys'
24 ../misc/tune2fs: Bad magic number in super-block while trying to open test.img
25 test.img contains a xfs file system labelled 'test_filsys'
27 Creating filesystem with 16384 1k blocks and 4096 inodes
28 Superblock backups stored on blocks: