On 07/26/2012 10:16 PM, Doan Van Tuyen wrote: Not directly. It may be possible to enhance the qemu guest-agent in order to request via the guest agent that the guest run a script; and there has been a proposal (although no code yet) for adding support for running arbitrary guest-agent commands from libvirt in the case where libvirt has not yet incorporated a particular agent command into existing commands. You may also be interested in checking out libguestfs, which provides a lot of utilities, including the ability to modify the disk image of an offline guest in order to install applications. -- Eric Blake eblake(a)redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org