superblock 에러 입니다

e2fsck 1.27 (8-Mar-2002)
Couldn't find ext2 superblock, trying backup blocks...
e2fsck: Bad magic number in super-block while trying to open /dev/sdb1

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>

e2fsck /dev/sda3 이렇게 해서 파일시스템을 체크하는데 위와 같은 메시지가

뜨고 파일시스템 체크도 안되고, 마운트도 안되고 , 어떻게 해야 하나요?]

고수님들 도와주세요~