I've updated to the latest ovirt-system-tests, and apparently commit ed759a62 was breaking things to me. So I've updated Lago to latest (from http://resources.ovirt.org/repos/lago/unstable/0.0/latest/rpm/fc23/noarch/ ) - which is 0.16.12-1 now, and now things break differently, possibly by Lago commit ba6dda1e92faf26bc6842a78143ced20ae0546ff

@ Create prefix internal repo: ERROR (in 0:00:00)
Error occured, aborting
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/ovirtlago/cmd.py", line 248, in do_run
    self.cli_plugins[args.ovirtverb].do_run(args)
  File "/usr/lib/python2.7/site-packages/lago/plugins/cli.py", line 180, in do_run
    self._do_run(**vars(args))
  File "/usr/lib/python2.7/site-packages/lago/utils.py", line 584, in wrapper
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/lago/utils.py", line 595, in wrapper
    return func(*args, prefix=prefix, **kwargs)
  File "/usr/lib/python2.7/site-packages/ovirtlago/cmd.py", line 166, in do_ovirt_reposetup
    skip_sync=skip_sync,
  File "/usr/lib/python2.7/site-packages/lago/log_utils.py", line 615, in wrapper
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/ovirtlago/__init__.py", line 423, in prepare_repo
    _sync_rpm_repository(rpm_repo, reposync_yum_config, repos)
  File "/usr/lib/python2.7/site-packages/ovirtlago/__init__.py", line 105, in _sync_rpm_repository
    ret, out, _ = utils.run_command(reposync_command)
AttributeError: 'module' object has no attribute 'run_command

Any idea?