From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43191) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xyd6x-0001Ja-HH for qemu-devel@nongnu.org; Wed, 10 Dec 2014 03:59:12 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xyd6s-0008Nq-GZ for qemu-devel@nongnu.org; Wed, 10 Dec 2014 03:59:07 -0500 Received: from mx1.redhat.com ([209.132.183.28]:35131) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xyd6s-0008Nb-7L for qemu-devel@nongnu.org; Wed, 10 Dec 2014 03:59:02 -0500 Date: Wed, 10 Dec 2014 08:58:52 +0000 From: "Dr. David Alan Gilbert" Message-ID: <20141210085852.GA2311@work-vm> References: <20141209183701.GI14440@gandi.net> <20141209185517.GH5272@work-vm> <20141209232546.GM14440@gandi.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141209232546.GM14440@gandi.net> Subject: Re: [Qemu-devel] migration from qemu2.1.2 to qemu2.2 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: William Dauchy Cc: QEMU Developers * William Dauchy (william@gandi.net) wrote: > Hi David, > > Thank you for the quick answer. > > On Dec09 18:55, Dr. David Alan Gilbert wrote: > > You don't tell us what that command line is! > > If you're using -M pc or -M q35 that's expected; if you're not > > it's probably a bug - please show us the command line. > > sorry it's indeed with `-M pc`. So I misunderstood the usage of > supported machines option since I was looking for a way to upgrade the > version and avoiding being stuck on a specific release. > I now understand I am supposed to keep the same version between live > migration and wait for a complete stop/start to upgrade. Or if there is > a trick, please advice. Yes, you've got to keep the same machine type to do a live migration; think of it like keeping the same motherboard/cpu combination in a real machine - we can't squash the state from one shape machine into a different shape machine without the guest getting very confused. Dave -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK