1 *** e2fsck 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 6 The superblock could not be read or does not describe a valid ext2/ext3/ext4 7 filesystem. If the device is valid and it really contains an ext2/ext3/ext4 8 filesystem (and not swap or ufs or something else), then the superblock 9 is corrupt, and you might try running e2fsck with an alternate superblock: 10 e2fsck -b 8193 <device> 11 or 12 e2fsck -b 32768 <device> 13 14 test.img contains `PNG image data, 148 x 31, 8-bit/color RGBA, non-interlaced' data 15 *** debugfs 16 *** tune2fs 17 ../misc/tune2fs: Bad magic number in super-block while trying to open test.img 18 test.img contains `PNG image data, 148 x 31, 8-bit/color RGBA, non-interlaced' data 19 *** mke2fs 20 Creating filesystem with 16384 1k blocks and 4096 inodes 21 Superblock backups stored on blocks: 22 8193 23 24
