[SunHELP] Currupt superblock and alternates

[René Berber]

Reed Stoner wrote:

> Having a bit of trouble with a scsi drive that has a bad superblock in
> Solaris 9.  I've tried running fsck with an alternate super block and
> it is still comming back with the error
>
> BAD SUPER BLOCK: MAGIC NUMBER WRONG
> USE AN ALTERNATIVE SUPER BLOCK TO SUPPLY NEEDED INFORMATION
> e.g. fsck [-F ufs] -0b=# [special...] where # is the alternative super
block
>
> Any alternative super block I try using newfs -N returns the same
> error.  I'm trying to retreive the data on the drive because it
> doesn't have any back up. (someone forgot to add this server to the
> backup scheme) Any help would be handy.

You can try to recover the disk with sformat (it does wonders with scsi
disks).

This means attaching the drive to a working computer, and using Joerg
Schilling's sformat program which can be found pre-compiled on
www.blastwave.org, look for "schilyutils".

You can also compile it yourself but I don't know where the source is at this
time (Schilling's usual web page is not valid)... perhaps following a
reference from cdrtools...
--
Reni Berber