WARNING - OLD ARCHIVES

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/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

RE: [Xen-devel] is the xen toolstack backwards compatible ?

To: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Subject: RE: [Xen-devel] is the xen toolstack backwards compatible ?
From: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
Date: Tue, 8 Dec 2009 17:00:08 -0800 (PST)
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Tue, 08 Dec 2009 17:01:25 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <554576850.20091209012320@xxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
On a separate thread, I've observed that the toolstack
incompatibility seems to appear between c/s 20070 and
20072.  I don't think backwards compatibility is
guaranteed but I agree it is desirable when possible.

> -----Original Message-----
> From: Sander Eikelenboom [mailto:linux@xxxxxxxxxxxxxx]
> Sent: Tuesday, December 08, 2009 5:23 PM
> To: Keir Fraser
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-devel] is the xen toolstack backwards compatible ?
> 
> 
> Hello Keir,
> 
> Perhaps it was coincidence, but if i remember well, booting a 
> 3.4.* hypervisor with the toolstack from a newer xen version 
> (aka xen-unstable) seemed to work.
> The thing is, default a xen build installs the different 
> hypervisor versions beside each other, and you can use them 
> as such in your grub config, the same with kernels.
> But the toolstack (xend, xm, xentop etc.) gets overwritten. 
> So after trying out a new hypervisor, you have to reinstall 
> your old toolstack before booting in a older hypervisor.
> 
> So if it was no coincidence but desirable, at the moment xend 
> and xentop from unstable don't seem to work on 3.4.2 
> hypervisor anymore.
> 
> -- 
> Best regards,
>  Sander                          mailto:linux@xxxxxxxxxxxxxx
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
>

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel