On 05/08/2013 01:58 AM, Daniele wrote: [please don't top-post on technical lists] > Hi Eric, so I will try to downgrade libvirt in the source host back to the > 0.9.8 version. To completely remove libvirt is enough to run the apt-get > command with the purge option? Unfortunately, I don't use debian enough to know how to downgrade. Also, 0.9.8 is rather old, you really ought to consider using newer libvirt, such as 1.0.5, just because of the improvements it has (I guess I don't understand why Debian favors such an old version of software). But if you DO downgrade, be aware that you will have to stop your guest and then restart it before your guest will be running under the older qemu. But if you are going to stop your guest, then you can get away with offline migration (much simpler, as it can work in spite of qemu version mismatch) - that is, live migration is only useful if you are trying to avoid powering down your guest. Conversely, if you are going to insist on live migration because your guest cannot suffer from downtime, then upgrading qemu is your only option. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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