(domain (domid 6)(name 'pvtest')(memory 420)(maxmem 420)(vcpus 2)\
(uuid '596a5d2171f48fb2e068e2386a5c413e')(bootloader '/usr/bin/pypxeboot')\
(bootloader_args 'mac=AA:00:86:e2:35:72')(on_poweroff 'destroy')\
(on_reboot 'destroy')(on_crash 'destroy')(device (vbd (dev 'xvda')\
(uname 'file:/root/some.img')(mode 'w'))))