Ok. While waiting for Daniel's, I tryed to add one more line to /etc/hosts. Now it looks like this: 127.0.0.1 localhost.localdomain localhost localhost4 ::1 localhost6.localdomain6 localhost6 192.168.0.67 fedorao.pisolar fedorao 192.168.1.4 cluster.pisolar cluster I added the line pointing the name of the "fedorao" machine on it's own /etc/hosts, made the same in "cluster" machine, rebooted both, and tried to migrate again. Migrating with virt-manager gives me this error message: <blockquote style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;" class="gmail_quote">Unable to migrate guest: operation failed: Migration unexpectedly failed Unable to migrate guest: operation failed: Migration unexpectedly failed Traceback (most recent call last): File "/usr/local/share/virt-manager/virtManager/asyncjob.py", line 45, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/local/share/virt-manager/virtManager/migrate.py", line 523, in _async_migrate vm.migrate(dstconn, migrate_uri, rate, live, secure, meter=meter) File "/usr/local/share/virt-manager/virtManager/domain.py", line 1141, in migrate self._backend.migrate(destconn.vmm, flags, newname, interface, rate) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 518, in migrate if ret is None:raise libvirtError('virDomainMigrate() failed', dom=self) libvirtError: operation failed: Migration unexpectedly failed </blockquote> Trying to use virsh, I get this answer: <blockquote style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;" class="gmail_quote"> [root@fedorao ~]# virsh migrate --live lol qemu+ssh://<a href="http://192.168.1.4/system">192.168.1.4/system</a> <a href="mailto:root@192.168.1.4">root@192.168.1.4</a>'s password: erro:operation failed: Migration unexpectedly failed </blockquote> (lol being the name of my test VM) <div class="gmail_quote">On Wed, Feb 2, 2011 at 6:00 PM, Justin Clift <<a href="mailto:jclift@redhat.com">jclift@redhat.com</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="im">On 03/02/2011, at 7:11 AM, Bruno Lamps wrote: > [root@cluster ~]# hostname > cluster.pisolar > [root@cluster ~]# cat /etc/hosts > 127.0.0.1 cluster localhost.localdomain localhost localhost4 > ::1 cluster localhost6.localdomain6 localhost6 > 192.168.0.67 fedorao.pisolar fedorao </div>This bit sounds (to me) like it *might* be worth checking. It has "cluster" pointing to the loopback interface on the host instead of the ethernet IP: <div class="im"> 192.168.1.4 cluster.pisolar cluster </div>But, you might want to wait for Daniel's input first. :) </blockquote></div>