On Fri, 23 May 2014 18:34:33 +0200, Dr. Boris Neubert wrote: Hi, Yes, I've been using VirtualBox-4.3.10 with libvirt-1.2.3 quite successfully, though it took me a while to figure out how to work with it: 1. There are two ways to connect: a) vbox:///system - this connects to vbox running as root which is rarely the case for usual vbox installations. b) vbox:///session - connects to vbox running as current user (this is most likely what you will want to do) 2. While I could list, shutdown etc running VMs, I could not start any with default configuration - start VM would just freeze as for some reason it cannot initialize VBox GUI. To solve this: a) redefine VM to start in headless mode and use RDP as your display instead. To do so make sure VMs XML graphics settings are as below: <driver> <graphics type="rdp" autoport="yes"> </driver> Make sure that there's NO <graphics type="desktop"> in there as this is what attempts to start VBox GUI. b) start VBox GUI first, and the libvirt should be able to start VMs fine. Regards, Dawid Zamirski