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From: Neil Brown <neilb@cse.unsw.edu.au>
To: "Tommy Faasen" <faasen@xs4all.nl>
Date: Sun, 4 Aug 2002 22:00:22 +1000 (EST)
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Message-ID: <15693.5974.487891.772395@notabene.cse.unsw.edu.au>
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Subject: Re: 2.4.18 (pre8) strange software raid0 problem
In-Reply-To: message from Tommy Faasen on Sunday August 4
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On Sunday August 4, faasen@xs4all.nl wrote:
> Hi,
> 
> i ran into a very strange problem.
> 
> I booted my system this morning only to discover that I could no longer
> mount my /dev/md0. I shut down my system last night without any problems.
> 
> The only way I can mount it again is with mdadm --assembly /dev/md0
> /dev/sda9 /dev/sdb1 /dev/sdc1
> I have to do this every time the system is rebooted.
> 
> The distribution is debian unstable
> mdadm - v1.0.1 - 20 May 2002
> raidstart v0.3d compiled for md raidtools-0.90
> 
> Is there any way to permanently fix this error?
> How did this happen, as i didn't do anything i can see related to
> this?

Sounds to me like something changed in debian.  'unstable' is like
that.

It would appear that you aren't using autodetect partitions, so you
need to have either 'raidstart -a' or 'mdadm -As' run at boot time,
with appropriate config files: /etc/raidtab or /etc/mdadm.conf.
Check your rc scripts and config files, decide which one you want to
use, and make sure the right script is enabled and the right
configfile has appropriate information.

NeilBrown
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