From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Magenheimer Subject: RE: is the xen toolstack backwards compatible ? Date: Tue, 8 Dec 2009 17:00:08 -0800 (PST) Message-ID: <6cfec281-59bf-42a2-be60-0ccdb3e83fb7@default> References: <554576850.20091209012320@eikelenboom.it> Mime-Version: 1.0 Content-Type: text/plain; charset=Windows-1252 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <554576850.20091209012320@eikelenboom.it> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Sander Eikelenboom , Keir Fraser Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org 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@eikelenboom.it] > Sent: Tuesday, December 08, 2009 5:23 PM > To: Keir Fraser > Cc: xen-devel@lists.xensource.com > Subject: [Xen-devel] is the xen toolstack backwards compatible ? >=20 >=20 > Hello Keir, >=20 > Perhaps it was coincidence, but if i remember well, booting a=20 > 3.4.* hypervisor with the toolstack from a newer xen version=20 > (aka xen-unstable) seemed to work. > The thing is, default a xen build installs the different=20 > hypervisor versions beside each other, and you can use them=20 > as such in your grub config, the same with kernels. > But the toolstack (xend, xm, xentop etc.) gets overwritten.=20 > So after trying out a new hypervisor, you have to reinstall=20 > your old toolstack before booting in a older hypervisor. >=20 > So if it was no coincidence but desirable, at the moment xend=20 > and xentop from unstable don't seem to work on 3.4.2=20 > hypervisor anymore. >=20 > --=20 > Best regards, > Sander mailto:linux@eikelenboom.it >=20 >=20 > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >