Description of problem:
virt-manager shows a traceback:

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/engine.py", line 637, in reboot_domain
    vm.reboot()
  File "/usr/share/virt-manager/virtManager/domain.py", line 146, in reboot
    self._backend.reboot(0)
  File "/usr/lib64/python2.6/site-packages/libvirt.py", line 591, in reboot
    if ret == -1: raise libvirtError ('virDomainReboot() failed', dom=self)
libvirtError: this function is not supported by the connection driver: virDomainReboot

My F-14 vm got into a weird state after telinit 1, the console went blank so I wanted to reboot it. Using Shut down -> Reboot resulted in the above error.

Version-Release number of selected component (if applicable):
virt-manager-0.8.2-3.fc12.noarch

How reproducible:
Always

Steps to Reproduce:
1. start f14 vm
2. startx, open terminal, become root
3. init 1, wait until console goes black
4. select Shut down -> Reboot in virt-manager