On 03/02/2011, at 12:02 AM, Daniel P. Berrange wrote: > On Wed, Feb 02, 2011 at 11:48:11PM +1100, Justin Clift wrote: >> On 02/02/2011, at 11:25 PM, Bruno Lamps wrote: >>> I was using fedora 13 (kernel 2.6.32) in one machine and fedora 14 (kernel >>> 2.6.35) in other >> >> Ahhh, that might be the problem. One of the "fundamental" things for >> migration is that both >> the source and destination hosts need to be *exactly* the same kernel >> version, kvm version, etc. > > That's not actually true. The requirement is that the destination must > offer the same, or a superset of, the features currently configured for > the guest on the source host. This basically means that the KVM version > must be the same or newer, and the guest machine type must be available > on both hosts. > > So migration with a OS family should work across version upgrades, eg > from Fedora 13 to 14 to 15 should work in that direction. If you want to > migrate in the reverse direction eg, from F15 to F14, you need to take > extra care to set the guest machine type to a version that is available > on both, and even then some problems may occur depending on how much > older the target is than the source. > > Migration from Fedora to RHEL or vica-versa will not work at all due > to different machine types.
That's weird. I've been told (more than once) that things have to match exactly. We don't even support live migration from AMD -> Intel or vice versa. *sigh* _______________________________________________ virt-tools-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/virt-tools-list
