Создание XEN PV и установка ubuntu trusty через virt-install

virt-install --paravirt --name system name --ram 10240 --vcpus 12 --disk path=/dev/VG/LVM --network bridge=br1 --graphics none --location http://ru.archive.ubuntu.com/ubuntu/dists/trusty/main/installer-amd64/

Booting CentOS 5.5 in xen DomU

CentOS 5.5
kernel-xen0-*.*.rpm and kernel-xen-*.*.rpm are built with xenblk as a module, so that an attempt to boot into a DomU with the xen0 kernel dies with a message like:
mount: could not find filesystem '/dev/root'

sudo mkinitrd --with=xennet --preload=xenblk /boot/$KERNEL-$DOMNAME.img $KERNEL