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Re: kernel panic booting from raid5 with external log

To: "Martin K. Petersen" <mkp@xxxxxxxxxxx>
Subject: Re: kernel panic booting from raid5 with external log
From: Ingo Juergensmann <ij@xxxxxxxxxxxxxxxx>
Date: Sat, 2 Mar 2002 16:43:04 +0100
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <yq17kov2hxj.fsf@austin.mkp.net>
References: <20020302051731.GC14671@muaddib.localnet> <yq17kov2hxj.fsf@austin.mkp.net>
Sender: owner-linux-xfs@xxxxxxxxxxx
User-agent: Mutt/1.3.27i
On Sat, Mar 02, 2002 at 08:55:04AM -0500, Martin K. Petersen wrote:

> Ingo> Kernel panic when mounting rootfs: root fs uses a external log
> Ingo> and I should specify where the external logdev is within my
> Ingo> mount command - but how?!
> You need to add logdev=/dev/foo to the mount options.

Ok, but tell me where or how?
I mean there is already a logdev=/dev/sde2 option in /etc/fstab, but how can
kernel read /etc/fstab when it is unable to mount rootfs on /?

Booting from auxiallary disk and mounting the raid by hand with appropriate
mount option actually works, but that was not my point.

> Ingo> I've put my nose into man lilo.conf, man mkfs.xfs and
> Ingo> Boot-Howtos but found nothing that could help me.
> man mount

man mount was too obvious for me, so I omitted this in my list of read man
pages. Sorry, my fault.

man rdev shows that option ro is currently the only option that can be
passed to kernel for boot time.

So, it seems as if one can not use a raid5 on / with a external logdev. Is
this right?

-- 
Ciao...                    // PowerAnimator & Maya Operator
      Ingo               \X/  To boldly design where noone designed before!


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