Description of problem:
If you use koan to create a guest, you get the following error:
# koan --server=localhost --virt --virt-type=qemu --system=foo
- looking for Cobbler at http://localhost:80/cobbler_api
- reading URL: http://192.168.122.1/cblr/svc/op/ks/system/foo
install_tree: http://192.168.122.1/cblr/links/rhel5-x86_64
libvirtd (pid  3581) is running...
- using qemu hypervisor, type=kvm
Wed, 23 May 2012 15:40:11 DEBUG    No conn passed to Guest, opening URI 'qemu:///system'
Wed, 23 May 2012 15:40:11 DEBUG    DistroInstaller location is a network source.
libvir: QEMU error : Domain not found: no domain with matching name 'foo'
exceptions.AttributeError
'FullVirtGuest' object has no attribute 'set_autostart'
  File "/usr/lib/python2.4/site-packages/koan/app.py", line 245, in main
    k.run()
   File "/usr/lib/python2.4/site-packages/koan/app.py", line 385, in run
    self.virt()
   File "/usr/lib/python2.4/site-packages/koan/app.py", line 739, in virt
    return self.net_install(after_download)
   File "/usr/lib/python2.4/site-packages/koan/app.py", line 630, in net_install
    after_download(self, profile_data)
   File "/usr/lib/python2.4/site-packages/koan/app.py", line 737, in after_download
    self.virt_net_install(profile_data)
   File "/usr/lib/python2.4/site-packages/koan/app.py", line 1291, in virt_net_install
    qemu_net_type    =  self.qemu_net_type
   File "/usr/lib/python2.4/site-packages/koan/qcreate.py", line 161, in start_install
    guest.set_autostart(virt_auto_boot)
#

Version-Release number of selected component (if applicable):
koan-2.2.2-1.el5
python-virtinst-0.400.3-13.el5


How reproducible:
Every time.


Steps to Reproduce:
1. Configure a cobbler server.
2. Run the command above to create a guest.
  
Actual results:
The exception above.


Expected results:
Virtual machine is created.


Additional info: