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Re: XFS and grub-0.92

To: Ian Cumming <ian@xxxxxxxxxx>
Subject: Re: XFS and grub-0.92
From: Kelledin <kelledin@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 10 Jul 2002 02:43:11 -0500
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <20020710061931.GA18472@xxxxxxxxxx>
References: <200207100551.g6A5pX5G003057@xxxxxxxxxxxxxxxxxxx> <20020710061931.GA18472@xxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
> I've found this problem too. I tried to install grub onto the root
> partition of a drive, and was not able to boot (with the same error).
>
> It appears that you cannot install grub onto the root partition without
> corrupting the XFS fs. However, I can install grub into the MBR of the
> drive, and successfully boot from the root partition in this manner.
>
> My knowledge of this problem is very limited, because I could not afford
> to break my system again by investigating it! With this in mind, I can
> only offer an anecdotal intepretation of the problem, howerver I am sure
> that others in this list can offer a far better explanation.

Come to think of it, this is exactly what my experience bears out.  The one 
box I have with XFS+grub working has grub on the MBR, and the one where it 
doesn't work...well, we've been through that.

I just went through the XFS FAQ again and found something else...particularly 
concerning LILO.  It has the same problem as grub--it can't be installed on 
the bootsector of a root partition, because it overwrites the XFS superblock. 
 This is apparently a limitation of XFS; only reason it worked with lilo is 
because I had lilo's bootsector residing on floppy.

--
Kelledin
"If a server crashes in a server farm and no one pings it, does it still cost 
four figures to fix?"


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