hi all, (this events ocurred before my previous mail about the uuid incident) so, I installed a vm host: rhel6 guest: centos6 network: bridge (br0, eth1 as slave) but then, I changed the name of the bridge from br0 to br1 (because br1<->eth1 seems pretty than br0<->eth1) so: - mv /etc/sysconfig/network-scripts/ifcfg-br0 /etc/sysconfig/network-scripts/ifcfg-br1 - edited /etc/sysconfig/network-scripts/ifcfg-br1 change DEVICE=br0 by DEVICE=br1 - edited /etc/sysconfig/network-scripts/ifcfg-eth1 and changed the line BRIDGE=br0 to BRIDGE=br1 - edited /etc/libvirt/qemu/rmdev2.xml and changed the line <source bridge='br0'/> to <source bridge='br1'/> - service network restart <aside note> boom! lost connection to the server I had to go to server location (a few miles) by car because the network restart didn't stop br0 because thera was no script br0 and when br1 started produced a collision </aside note> - service libvirtd restart # brctl show bridge name bridge id STP enabled interfaces br1 8000.e41f13ba6e1a no eth1 virbr0 8000.5254003a3124 yes virbr0-nic # virsh -c qemu:///system start rmdev2 error: Failed to start domain rmdev2 error: Failed to add tap interface to bridge 'br0': No such device there *nothing* 'br0' in /etc in the system (I grepped it), why is looking for br0 instead of br1 ? I ended up undefining rmdev2, installing a new guest called rmdev2 using br1, and that was when I got the error: operation failed: cannot restore domain 'rmdev2' uuid 9e9ea633-9691-f3d6-64da-ae9c8b3e5810 from a file which belongs to domain 'rmdev2' uuid 4f425d14-335b-0adc-11af-06e503c6b54d yes, I was ready to fire the house and leaving for better places... thanks, /sergio