Okay I found out what the problem was. I stumbled over the bug in the
creation of the Python interface that I filed some weeks ago
(
https://bugzilla.redhat.com/show_bug.cgi?id=518029).
Andreas Sommer wrote:
Hi,
I'm having a problem with starting a HVM virtual machine on Xen-3.4
with python-libvirt.
Then I call
connection.createXML(libvirtXmlDescription, 0)
which leads to an exception "unknown root elementi for storage pool".