Schedule for Monday's FESCo Meeting (2012-06-18)

Richard W.M. Jones rjones at
Mon Jun 18 12:40:44 UTC 2012

On Mon, Jun 18, 2012 at 02:57:12PM +0300, Alek Paunov wrote:
> However, I never tried to update qemu-system with live VMs.

The update will work, but the VMs will still be running the old code.

You can actually solve that problem using VM migration: live migrate
the VM from the old qemu to the new qemu.  Downtime should be minimal
(a fraction of a second).  Like a good daemon, qemu is able to
serialize its internal state and reproduce it in another instance.

So there is definitely a path to make this work if, for example, qemu
was found to have a serious security bug.


Richard Jones, Virtualization Group, Red Hat
virt-p2v converts physical machines to virtual machines.  Boot with a
live CD or over the network (PXE) and turn machines into Xen guests.

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