Mattias, ----- Original Message ----- > i have installed kvm on centos 6 > but how to run it > i not use libvirt There is a fine virtualization guide written by Red Hat so check that if you haven't. Basically you DO want to use libvirt in so much as you use a client that uses it. What client? Like virt-manager and/or virsh. Those should be the clues that you need. TYL, -- Scott Dowdle 704 Church Street Belgrade, MT 59714 (406)388-0827 [home] (406)994-3931 [work]