а если пишет,что делать?
:~$ sudo fsck -n /dev/sdb
fsck from util-linux-ng 2.17.2
e2fsck 1.41.11 (14-Mar-2010)
fsck.ext2: Superblock invalid, trying backup blocks...
fsck.ext2: Bad magic number in super-block при попытке открыть /dev/sdb
The superблок could not be read or does not describe a correct ext2
ФС. If the устройство is valid and it really contains an ext2
ФС (and not swap or ufs or something else), then the superблок
is corrupt, and you might try running e2fsck with an alternate superблок:
e2fsck -b 8193 <устройство>