linux-kernel - Re: Ubuntu Jaunty ext3 --> ext4 upgrade issue

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Date:	Wed, 18 Feb 2009 20:18:37 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	tim.gardner@...onical.com
Cc:	tytso@....edu,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Ubuntu Jaunty ext3 --> ext4 upgrade issue

On Wed, 2009-02-18 at 11:10 -0700, Tim Gardner wrote:
> Ted,
> 
> I've encountered a situation where the patches that you've proposed for
> stable updates might be causing some issues. This user ivoks appears to
> have an upgrade issue. I assume he's enabled ext4 on an existing ext3
> file system. Hopefully I can get more details. Have you seen anything
> like this?
> 
> After looking at your for-stable branch, I think I'm missing a couple of
> jbd2 patches. Could they be significant?
> 
> rtg
> 
> <ivoks> i'm getting 'Invalid or unsupported executable format' from grub
> on all jaunty's generic kernels since (including) 2.6.28-7

Does your grub have ext4 support? Otherwise I would suggest not
converting /boot (or whatever other partition is used to load the kernel
from).

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