[Xen-users] Steps to upgrade Xen?

[Danilo Godec <danilo.godec@xxxxxxxxx>]

Hi,

I'm currently using Xen 3.0 that's included in OpenSuSE 10.2. The hosts
(two of them) are 64-bit Intel based machines.

I'm running various Linux distributions as guests - most have been
migrated from existing physical machines and most of them have been
installed on 32-bit machines. Currently I just use the hosts kernel
which works in most cases, but creates some problems that I would like
to avoid.

Since 3.1 is supposed to support 32-bit guests on 64-bit host, I would
like to upgrade my hosts to Xen 3.1. I have already managed to compile
Xen, libs and tools. One of my hosts is running Xen 3.1:

>  Xen version 3.1.0_15040-13 (root@xxxxxxxxx) (gcc version 4.1.2 20061115 
> (prerelease) (SUSE Linux)) Wed Jun 20 19:37:22 CEST 2007
>  Latest ChangeSet: 15040

I've setup one of my guests to run it's own (Xen aware) 32-bit kernel,
but it doesn't work.:

> VmError: (2, 'Invalid kernel', 'xc_dom_compat_check: guest type 
> xen-3.0-x86_32 not supported by xen kernel, sorry\n')

It is, however, the original kernel that came with the distro (SuSE
Linux 10.0) with older Xen version.

Which kernel do I need to upgrade - Dom0, DomU or both?

BTW, Xen capabilites on this host are:

> xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
> hvm-3.0-x86_32p hvm-3.0-x86_64


 Thanks, Danilo

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