The subject pretty much says it all. I am running libvirt (KVM?) on Ubuntu and I have two guests (both ubuntu server) that I cannot access or control.
That is, if I view them with virsh or virt-manager, their status is "running". I cannot connect to the graphical console. If I send the keys ctrl-alt-del nothing happens. If I try to "shut down" I get the error "error shutting down domain. Timed out during operation. cannot acquire state change lock".
I really cannot just delete these guests and start over. How can I recover them?
service libvirtd restart? you can dump the domain xml via commandvirsh dumpxml <guest-name>then you can see the graphic device. usually you can use any VNC client connect to it to see the desktop. Finally, you can destroy the running VMs and restart the VMs. just use commandvirsh destroy <guest-name>andvirsh start <buest-name>, your guest OS will just experience one restart. - shawnzhu