[SASAG] Centos XEN Host... issues installing Ubuntu Guest

[Bill Levering]

Hey,

I'm having problems trying to get Ubuntu to install as a Guest under  
Centos.

It appears that pygrub doesn't recognize the ubuntu isntall cd as valid.

# virt-install -name ubuntu --ram 256 --nographics -l /backup/ 
ubuntu-8.10-server-amd64.iso -f /vimages/ubuntu/root.img -f /vimages/ 
ubuntu/usr.img -d --os-type=linux -d
Thu, 13 Nov 2008 12:39:22 DEBUG    DistroInstaller location is a local  
file/path: /backup/ubuntu-8.10-server-amd64.iso


Starting install...
Thu, 13 Nov 2008 12:39:23 DEBUG    Preparing mount at /var/lib/xen/ 
virtinstmnt.I9tv0I
Thu, 13 Nov 2008 12:39:23 DEBUG    Acquiring file from /var/lib/xen/ 
virtinstmnt.I9tv0I/.treeinfo
Thu, 13 Nov 2008 12:39:23 DEBUG    Cannot find file .treeinfo
Thu, 13 Nov 2008 12:39:23 DEBUG    Acquiring file from /var/lib/xen/ 
virtinstmnt.I9tv0I/fedora.css
Thu, 13 Nov 2008 12:39:23 DEBUG    Cannot find file fedora.css
Thu, 13 Nov 2008 12:39:23 DEBUG    Acquiring file from /var/lib/xen/ 
virtinstmnt.I9tv0I/Fedora
Thu, 13 Nov 2008 12:39:23 DEBUG    Cannot find file Fedora
Thu, 13 Nov 2008 12:39:23 DEBUG    Acquiring file from /var/lib/xen/ 
virtinstmnt.I9tv0I/Server
Thu, 13 Nov 2008 12:39:23 DEBUG    Cannot find file Server
Thu, 13 Nov 2008 12:39:23 DEBUG    Acquiring file from /var/lib/xen/ 
virtinstmnt.I9tv0I/Client
Thu, 13 Nov 2008 12:39:23 DEBUG    Cannot find file Client
Thu, 13 Nov 2008 12:39:23 DEBUG    Acquiring file from /var/lib/xen/ 
virtinstmnt.I9tv0I/RedHat
Thu, 13 Nov 2008 12:39:23 DEBUG    Cannot find file RedHat
Thu, 13 Nov 2008 12:39:23 DEBUG    Acquiring file from /var/lib/xen/ 
virtinstmnt.I9tv0I/CentOS
Thu, 13 Nov 2008 12:39:23 DEBUG    Cannot find file CentOS
Thu, 13 Nov 2008 12:39:23 DEBUG    Acquiring file from /var/lib/xen/ 
virtinstmnt.I9tv0I/directory.yast
Thu, 13 Nov 2008 12:39:23 DEBUG    Doesn't look like a Suse distro  
Invalid file location given: No such file or directory
Thu, 13 Nov 2008 12:39:23 DEBUG    Cleaning up mount at /var/lib/xen/ 
virtinstmnt.I9tv0I
Could not find an installable distribution at '/backup/ubuntu-8.10- 
server-amd64.iso'
Domain installation may not have been
  successful.  If it was, you can restart your domain
  by running 'virsh start ame'; otherwise, please
  restart your installation.
Thu, 13 Nov 2008 12:39:23 ERROR    Could not find an installable  
distribution at '/backup/ubuntu-8.10-server-amd64.iso'
Traceback (most recent call last):
   File "/usr/sbin/virt-install", line 502, in ?
     main()
   File "/usr/sbin/virt-install", line 462, in main
     dom = guest.start_install(conscb,progresscb)
   File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line  
811, in start_install
     self._prepare_install(meter)
   File "/usr/lib/python2.4/site-packages/virtinst/ParaVirtGuest.py",  
line 56, in _prepare_install
     self._installer.prepare(guest = self, meter = meter)
   File "/usr/lib/python2.4/site-packages/virtinst/DistroManager.py",  
line 239, in prepare
     self._prepare_kernel_and_initrd(guest, distro, meter)
   File "/usr/lib/python2.4/site-packages/virtinst/DistroManager.py",  
line 209, in _prepare_kernel_and_initrd
     distro = distro)
   File "/usr/lib/python2.4/site-packages/virtinst/DistroManager.py",  
line 122, in acquireKernel
     progresscb=progresscb, distro=distro, scratchdir=scratchdir)
   File "/usr/lib/python2.4/site-packages/virtinst/DistroManager.py",  
line 101, in _storeForDistro
     raise ValueError, _("Could not find an installable distribution  
at '%s'" % baseuri)
ValueError: Could not find an installable distribution at '/backup/ 
ubuntu-8.10-server-amd64.iso'
[root at watchmen xen]#

I can boot a centos guest, and mount the cd, but I see no way of  
starting the install process.

Does anyone have any suggestions?

Bill