On 11/19/2012 03:42 AM, huancong deng wrote: You need to give us more information to go on before we can tell you what went wrong. For example, what command did you type, what is the exact error message you saw, what is the XML you were using, what version of libvirt are you using, etc. Basically, a good bug report is one where we can reproduce your problem, since that is a prerequisite for anyone being able to help you. -- Eric Blake eblake(a)redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org