[Discuss] bad hd super block

[brendan]

maybe use dumpe2fs to find the other superblocks and try against one of
those instead
(http://www.cyberciti.biz/faq/linux-find-alternative-superblocks/)?
there should be more than just one; perhaps another superblock is ok.

On 14-12-18 09:42 AM, John Blomfield wrote:
> I have a problem with a SATA data drive. My bios will not boot with it
> installed in my computer. It does not contain the OS only various data
> partitions. My computer has just a mSata SSD drive and a HD drive. I use
> the HD for data and the SSD for my OS. If I remove the HD and my
> computer will boot without problems and when I put the HD in a USB
> enclosure and plug it in I can access the data partitions with my
> Dolphin file manager. However if I try to mount it using the "mount"
> Command line it complains of a bad super block. I have tried running
> fsck with the following result:
> 
> ban:/home/john # fsck /dev/sdb
> fsck from util-linux 2.23.2
> e2fsck 1.42.8 (20-Jun-2013)
> ext2fs_open2: Bad magic number in super-block
> fsck.ext2: Superblock invalid, trying backup blocks...
> fsck.ext2: Bad magic number in super-block while trying to open /dev/sdb
> 
> 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>
> 
> ban:/home/john # e2fsck -b 8193 /dev/sdb
> e2fsck 1.42.8 (20-Jun-2013)
> e2fsck: Bad magic number in super-block while trying to open /dev/sdb
> 
> 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>
> 
> ban:/home/john #
> 
> Has anyone any ideas what to do next? I have all the data backed up so I
> am tempted to re-partition and re-format the whole drive and replace all
> the data but will this work and is there a less time consuming method?
> 
> John
> 
>