Comment 3 for bug 890066

To temporarly solved the problem by modifing the file nova/virt/libvirt/connection.py and changed the line 414 from:

  shutil.rmtree(target)

to:

  utils.execute('rm', '-rf', target, run_as_root=True)

in the _cleanup method. I also added the permissions for "rm" in the sudoers file.