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Re: [Pkg-xen-devel] Release notes addition for Xen support in Debian

On Thu, Dec 30, 2010 at 12:40:32AM +0800, Thomas Goirand wrote:
> Thanks. Indeed, there was some possible confusion. Patched accordingly.
> Please find the new patch attached to this email.

See below for one more comment..

> Thomas Goirand (zigo)

> --- release-notes/en/upgrading.dbk.orig	2010-12-29 17:15:03.000000000 +0800
> +++ release-notes/en/upgrading.dbk	2010-12-30 00:37:17.000000000 +0800
> @@ -1349,6 +1349,32 @@
>  </para>
>  </section>
> +<section id="xen-upgrades">
> +<title>Xen upgrades</title>
> +<para>
> +If you installed Xen on Lenny, the kernel booted by grub-legacy per
> +default was the one providing a Xen hypervisor and dom0 support. This
> +behavior changed with GRUB 2 in Squeeze: the non-Xen kernel will
> +boot per default. If you need Xen and expect to boot with it by default,
> +find further configuration hints at:
> +http://wiki.debian.org/Xen#Installationandconfiguration
> +</para>
> +<para>
> +Upgrades from Lenny will not automatically install Xen version 4.0. Instead
> +you need to install Xen 4.0 and a corresponding dom0 kernel explicitly. See
> +the wiki page for instructions on how to set up the Xen hypervisor and dom0
> +kernel under Squeeze.
> +</para>
> +<para> 
> +Be aware that, if you run a pvops kernel for your domU, like the Xen kernel
> +2.6.32 of Squeeze, your domU won't be able to use (for example) sda1 as a
> +device name for its hard drive. This naming scheme has been removed from Xen
> +upon request of the mainline kernel maintainers. Instead you should use (as
> +a corresponding example) xvda1, which will always work, including when running
> +Lenny 2.6.26 forward ported Xen patch.
> +</para>
> +</section>

Actually the sd* naming hasn't been removed from *Xen* itself,
just from the pvops (upstream kernel.org) Linux kernel xen-blkfront driver!

-- Pasi

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