R> can you help me here ? Probably not, I'm not familiar with cgconfig nor the latest cgroup support in libvirt. R> 14:47:24.556: warning : qemudStartup:565 : Unable to create cgroup R> for driver: No such device or address My guess is that this means you don't have the cgroup filesystem mounted, or it's mounted in a way that prevents libvirt from doing its work. IIRC, there are things you can do to the system that require a reboot to undo. If cgconfig is setting up the cgroups in such a way, you might need to reboot between stopping cgconfig and trying libvirt by itself. R> But when i start cgconfig service, then i am not able to open R> console for my container. Again, knowing nothing of cgconfig, I can only speculate that it's doing something to prevent accessing the console pty. I would push on the libcgroup folks to help figure out what it's doing (either by default or with your config) to prevent that and then go from there. -- Dan Smith IBM Linux Technology Center email: danms@xxxxxxxxxx -- Libvir-list mailing list Libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list