[H-GEN] Arrrrghh!

[Robert Brockway]

On Sun, 14 Feb 1999, Daehenoc wrote:

> MINIX-fs: unable to read superblock
> Kernel panic: VFS: Unable to mount root fs on 03:07
> ...and doesn't start.

Logical partitions get renumbered when one is removed, so try /dev/hda6 as
the boot partition perhaps.

Probably should boot off a floppy in case /etc/fstab causes problems
during boot as a result of partitions being renamed (likely).
  
> Now, I don't think that I did anything to the superblock - unless NT4
> server setup maliciously searched out and destroyed it without my
> knowledge (allegedly!) - can anybody tell me how to fix this? Please?

Assuming there is damage to the superblock, it is important to be aware of
the following procedure for superblock recovery:

Boot off a boot floppy and force a fsck.  If it fails, then do a fsck
using an alternative superblock.  To do this, use fsck -b 8193.
alternative copies of the superblock are kept in each block s where
s = 8192n+1,  n= 1,2,3...

So do a fsck -b 8193, then fsck -b 16385,etc until u get one that works or
you run out of superblock copies.
Cheers,
	-Robert

--Robert Brockway B.Sc.  Email:	robert at blake.humbug.org.au
				robert at humbug.org.au, r.brockway at uq.net.au
			 WWW:   http://www.humbug.org.au/~robert
			 Founder of HUMBUG (http://www.humbug.org.au)