[root@csacca ~]# xenguest-install 
What is the name of your virtual machine? splat1
 How much RAM should be allocated (in megabytes)? 190
 What would you like to use as the disk (path)? /dev/VolGroup00/testlv
 What is the install location?
http://download.fedora.devel.redhat.com/pub/fedora/linux/core/development/x86_64/os/
 
Starting install...
libvir: Xen Daemon error : GET operation failed: No such domain splat1
libvir: Xen Daemon error : POST operation failed: No such domain splat1
Failed to get devices for domain splat1
Traceback (most recent call last):
  File "/usr/sbin/xenguest-install", line 237, in ?
    main()
  File "/usr/sbin/xenguest-install", line 229, in main
    r = guest.start_install(True)
  File "/usr/lib/python2.4/site-packages/xeninst/ParaVirtGuest.py", line 183, in
start_install
    self.domain = conn.createLinux(cxml, 0)
  File "/usr/lib64/python2.4/site-packages/libvirt.py", line 249, in createLinux
    if ret is None:raise libvirtError('virDomainCreateLinux() failed')
libvirt.libvirtError: virDomainCreateLinux() failed
[root@csacca ~]# rpm -q xen libvirt
xen-3.0.2-28
libvirt-0.1.4-4
[root@csacca ~]# uname -r
2.6.17-1.2597.fc6xen