SOLVED
On Wed, Jun 26, 2013 at 4:11 PM, Dirk Olmes dirk.olmes@exentra.de wrote:
From the virt-manager, I am able to shutdown/reboot the Debian and Ubuntu guest OSs but not the CentOS 6 guests.
For the CentOS 6 guests, I have to resort to "Force off"
Install the acpid package and make sure it is properly started when the VM starts.
That was it! Thanks very much.