Fedora xen - Apr 2007 - upgrading Xen and booting domU (which was created by virt-install) from a previous version

Hello,
I had installed a geust by virt-install; this was dome under xen which was
installed from rpm (kernel-xen-2.6.18-1.2798.fc6)

it was installed with something like:
virt-install -n guset2 -r 256 -s 4 -f /var/lib/xen/images/guest2/guest2File
-l http://192.168.0.202/ftp/fc6_x86_64_os/ -p --nographics
and it works.


Supppose I will install the new version by building from Xen from
source (3.0.4_1 version).
Will I be able to boot the guest image
(/var/lib/xen/images/guest2/guest2File)
I created before from this new Xen installation (when booting to Xen 3.0.4_1)?
Regards,
Ian