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Re: [Xen-devel] Re: [Xen-users] Step-by-step tutorial: Installing Xen 4.

To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [Xen-users] Step-by-step tutorial: Installing Xen 4.0.1 rpms on Fedora 13 with pvops Linux 2.6.32.x dom0 kernel
From: Michal Novotny <minovotn@xxxxxxxxxx>
Date: Tue, 07 Sep 2010 11:18:20 +0200
Cc: "xen@xxxxxxxxxxxxxxxxxxxxxxx" <xen@xxxxxxxxxxxxxxxxxxxxxxx>, Jeremy Fitzhardinge <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Boris Derzhavets <bderzhavets@xxxxxxxxx>, "virt@xxxxxxxxxxxxxxxxxxxxxxx" <virt@xxxxxxxxxxxxxxxxxxxxxxx>, "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
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On 09/07/2010 11:07 AM, Ian Campbell wrote:
On Tue, 2010-09-07 at 01:57 +0100, Jeremy Fitzhardinge wrote:
On 09/05/2010 10:20 PM, Pasi Kärkkäinen wrote:
On Sun, Sep 05, 2010 at 05:18:07AM -0700, Boris Derzhavets wrote:
    >  Note about disk partitioning: Make /boot partition the primary (first)
    partition and choose the filesystem type as "ext3" (not "ext4" - which is
    the default)

    Could you , please , explain why ?

It's "just in case". It's not really required.
I prefer making sure every tool out there can read /boot partition
to avoid problems :)
pvgrub can't handle ext4 partitions, and does so in a non-obvious way
(often by just going into a spin loop...).
There are ext4 patches in various distro grub1 packages, such as those
which inspired the patch in 20652:c6ee21dca848 to pygrub/libfsimage.

I don't know how is it with pvgrub but pygrub is using libfsimage where ext2fs-lib subdirectory resides. If you're having e2fsprogs version that supports ext4 (should be available in Fedora 10 and higher AFAIK) you should have no problem with ext4 support there.


Michal Novotny<minovotn@xxxxxxxxxx>, RHCE
Virtualization Team (xen userspace), Red Hat

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