I've fianlly figured out how to enter the correct form of data to do a paravirt install
from the dvd, and it's virtually useless.  Of the three distros that deal with xen,
only fedora will work off the dvd, and then it lacks the drivers to actually complete
an install.

idella@debian:~$ sudo mount /dev/sr1 /mnt/tmp
mount: block device /dev/sr1 is write-protected, mounting read-only
idella@debian:~$ ls /mnt/tmp
autorun.inf     dists      install      md5sum.txt   README.mirrors.html  setup.exe
css             doc        install.386  pics         README.mirrors.txt   tools
debian          g2ldr      install.amd  pool         README.source
win32-loader.ini
dedication.txt  g2ldr.mbr  isolinux     README.html  README.txt

Unable to complete install '<type 'exceptions.ValueError'> Could not find an
installable distribution at '/mnt/ftp'
Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/create.py", line 728, in do_install
    dom = guest.start_install(False, meter = meter)
  File "/var/lib/python-support/python2.5/virtinst/Guest.py", line 733, in
start_install
    self._prepare_install(meter)
  File "/var/lib/python-support/python2.5/virtinst/ParaVirtGuest.py", line 48, in
_prepare_install
    self._installer.prepare(guest = self, meter = meter)
  File "/var/lib/python-support/python2.5/virtinst/DistroManager.py", line 269, in
prepare
    self._prepare_kernel_and_initrd(guest, distro, meter)
  File "/var/lib/python-support/python2.5/virtinst/DistroManager.py", line 235, in
_prepare_kernel_and_initrd
    arch=arch)
  File "/var/lib/python-support/python2.5/virtinst/DistroManager.py", line 109, in
acquireKernel
    scratchdir=scratchdir, arch=arch)
  File "/var/lib/python-support/python2.5/virtinst/DistroManager.py", line 93, in
_storeForDistro
    raise ValueError, _("Could not find an installable distribution at '%s'" % baseuri)
ValueError: Could not find an installable distribution at '/mnt/ftp'

Hello,

attached it an admittedly ugly patch[1] to make it possible to start an
installation from debian-jessie-DI-rc1-amd64-DVD-1.iso. The patch
applies on top of debian/1%1.0.1-4.

Best regards
Uwe

[1] I think part of the reason that the patch is ugly is that virtinst
is ugly, too :-)