Fedora xen - Jun 2006 - problem with domU install from xenguest-install.py

I am trying an http install a guest from
http://download.fedora.redhat.com/pub/fedora/linux/core/5/i386/os/
the install starts ok but then fails because it can''t find any Hard
Disks.
Is there a faq on how to
create hard disks so the install sees a disk and not just the directory I
passed it to install  script ? or am
I missing something ?

thanks,
Ron.

xend.log

 150, in waitForDevice
    raise VmError("Device %s (%s) could not be connected. "
VmError: Device 51712 (vbd) could not be connected. Backend device not
found.
[2006-06-25 22:10:56 xend] INFO (XendDomain:363) Domain guest1 (2) unpaused.
[2006-06-25 22:17:29 xend.XendDomainInfo] INFO (XendDomainInfo:841) Domain
has shutdown: name=guest1 id=2 reason=reboot.
[2006-06-25 22:17:29 xend.XendDomainInfo] DEBUG (XendDomainInfo:1343)
XendDomainInfo.destroy: domid=2