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Re: [Xen-users] Re: 32bit domU on amd64 dom0

  • To: Xen User-List <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
  • Date: Fri, 21 Aug 2009 09:54:12 +0700
  • Delivery-date: Thu, 20 Aug 2009 19:55:05 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

On Fri, Aug 21, 2009 at 6:56 AM, Tony Lill<ajlill@xxxxxxxxxxxxxxxxxxx> wrote:
> You can run a 32-bit kernel in the domU, it's just that xen-tools
> doesn't have any support to set it up for you automatically.
> Probably the easiest way is to login to your domU and install the 32bit
> xen kernel package. Then you need to copy the /boot/vmlinuz-*
> and /boot/initrd*
> up to your dom0 and give them a unique name (that is, don't
> overwrite your dom0 kernel). Then just edit the config file to point
> at the 32bit vmlinuz and initrd, and restart the domU

What I usually do is create an initial template for 32bit and 64bit
domU, in the form of tar.gz (for domU filesystem) and domU config.
Kernel is located within domU, loaded with pygrub. Whenever I need a
32bit domU I simply extract the template and modify domU config.

It's easier to manage that way as you don't have to care whether dom0
is 64bit or 32bit when using 32bit domU, plus you don't have to
synchronize kernel/initrd and modules between dom0 and domU.


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