This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


RE: [Xen-users] Kernel 2.6 (domain0) and Kernel 2.4 (domainU)???

To: "'Fabian Holler'" <fho@xxxxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>, "'Bruno Rodrigues Silva'" <brunors@xxxxxx>
Subject: RE: [Xen-users] Kernel 2.6 (domain0) and Kernel 2.4 (domainU)???
From: "Steffen Heil" <lists@xxxxxxxxxxxxxxx>
Date: Fri, 1 Sep 2006 13:03:11 +0200
Delivery-date: Fri, 01 Sep 2006 04:04:12 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <44F81045.2030904@xxxxxxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcbNtFbCwf242LzoRWm4CIKC2QJqoAAARSqw

> This is only possbile with an HVM machine. Paravirtualized 
> machines are using the host kernel.


EACH VM has it's own kernel!
By design you should be able to use any paravirtualized kernel in any domU
(even different ones at the same time) while using any xen-hosting kernel in
There is only ONE restirction: domU's xen build must not be newer the the
running supervisor.

Beside that, you simply cannot build any kernel with any version. AFAICT
there is no 2.4 kernel for xen3, you will need to compile the 2.4 kernel
with xen2. However by the rules above, you should still be able to run that
in a xen3 host. (Not the other way around though.)

I need to say, that I didn't test this myself except for running 3.0.0/1
kernels in a 3.0.2-2 host.


Attachment: smime.p7s
Description: S/MIME cryptographic signature

Xen-users mailing list