Hello, I was wondering if it was possible to support or easily extent libvirt to perform steps like the following when cloning: # Any existing VMs must be paused or better. ln $currentimg backing-store.img qemu-img create -o backing-store.img $currentimg.tmp qemu-img create -o backing-store.img $newimg # Get any existing VM using $currentimg.tmp mv $currentimg.tmp $currentimg The idea being to create branches of an installs ancestry rather than simply duplicating the install. Cheers. Mike Mestnik, Michael J The ESM Tools Enterprise Systems Monitoring United States Postal Service O: (651) 406-2048 Michael.J.Mestnik(a)usps.gov ITEnterpriseSystemsMonitoring(a)usps.gov