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Re: [Qemu-devel] qemu live migration error from 2.0 to 2.1
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-devel] qemu live migration error from 2.0 to 2.1 |
Date: |
Wed, 6 Aug 2014 10:17:50 +0100 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
* William Dauchy (address@hidden) wrote:
> On Wed, Aug 6, 2014 at 9:47 AM, Paolo Bonzini <address@hidden> wrote:
> > I suspect he's using "-M pc" on both.
>
> Is it the default value? because it's not the case in my command line.
>
> > You must use "-M pc-i440fx-2.0"
> > on both if you're migrating from 2.0 to a different version.
>
> wow. I wasn't expecting such behavior; i.e migration between qemu
> version does not seem trivial and it removes the benefits; better
> using stop/start.
> thanks for the info.
The trick is to pick a -M value and stick with it; then you should be
able to keep migrating to newer QEMU versions easily (just don't
go with dev versions because things are often broken in them).
-M pc is special, don't use that if you want to be able to migrate
Dave
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK