I think this is caused by removing the 'yum' element in https://github.com/openstack/instack-undercloud/commit/7301b39d28cc6884717ba8a694afb2e913c6ca7f
I think this is caused by removing the 'yum' element in https:/ /github. com/openstack/ instack- undercloud/ commit/ 7301b39d28cc688 4717ba8a694afb2 e913c6ca7f