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Re: Bad superblock, no secondary

To: "linux-xfs@xxxxxxxxxxx" <linux-xfs@xxxxxxxxxxx>
Subject: Re: Bad superblock, no secondary
From: kris buggenhout <buggenkr@xxxxxxxxxxxxxxxxxx>
Date: Fri, 21 Sep 2001 12:13:21 +0200
Cc: saveme <saveme@xxxxxxxxxx>
References: <3BAB1035.7040203@xxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
saveme wrote:
> 
> *sigh* I've pretty much resigned myself to lost data, but I thought I
> may as well ask (nay, beg!) the list for help.
> 
> Whe xfs_repair reports that the superblock is no good, and the secondary
> can't be found, that's pretty much it, isn't it? No way to get data back
> from here?

hmm  dont think ya gonne rescue something from that ... If its very
important data ... ya could do something stupid like : creating a new fs
on another disk, using dd dump info from the other disk on the new
disk... carefully offsetting, not to overwrite the superblock, and try
xfs_repair on it ....  but that wont work I guess

> 
> (No, no backup. That's what a RAID controller is for. But I'm learning
> that a RAID controller is not that much use when it dies, taking your
> XFS partition with it.... :-(
> 
IMHO a RAID controller is not a safeguard that eliminates the need for
backup...

Learning the hard way can be expensive ... ;)


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