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From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Samuel Thibault <samuel.thibault@ens-lyon.org>,
	xen-devel@lists.xensource.com
Subject: Re: [PATCH, PV-GRUB DOC] Add details to PV-GRUB documentation
Date: Wed, 03 Mar 2010 15:04:33 -0800	[thread overview]
Message-ID: <4B8EEB01.9080600@goop.org> (raw)
In-Reply-To: <20100303225934.GE5920@const.famille.thibault.fr>

On 03/03/2010 02:59 PM, Samuel Thibault wrote:
> According to the ext4 howto, once extents are enabled, the filesystem
> can not be mounted by ext2/3 tools: “If you convert your root
> filesystem ("/") to ext4, and you use the GRUB boot loader, you will
> need to install a version of GRUB which understands ext4. Your system
> may boot OK the first time, but when your kernel is upgraded, it will
> become unbootable.”
>
> So I guess for now we at least need to document that ext4 is not
> supported.

Yes.  It should also test the filesystem feature flags for features it 
doesn't support and give a useful error message (though I did finally 
work out how to use gdbsx while tracking this down).

>   The long-term plan could probably be to PV-ize grub2 of
> course...
>    

I suppose.  At least Fedora's grub1 supports ext4 (it was the F12 
installer which made this /boot); perhaps pvgrub needs a resync with 
upstream grub?

     J

  reply	other threads:[~2010-03-03 23:04 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-03 19:45 [PATCH, PV-GRUB DOC] Add details to PV-GRUB documentation Samuel Thibault
2010-03-03 22:48 ` Jeremy Fitzhardinge
2010-03-03 22:59   ` Samuel Thibault
2010-03-03 23:04     ` Jeremy Fitzhardinge [this message]
2010-03-03 23:16       ` Samuel Thibault
2010-03-07 22:45 ` [PATCH, PV-GRUB] Fix gzip support and iso support on x86_64 Samuel Thibault

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