Description of problem: When installing oVirt, the /usr/share/ovirt-engine/ui-plugins directory should be created, as the engine looks for the UI plugins in that directory.
The patch uploaded for a review: http://gerrit.ovirt.org/11200
Merged; http://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=commit;h=88950fdbd4d7eb8635155cc214ac2ec6ad10f16b