Make OpenSUSE 12.3 admin node install process work.

This allows the automated installation of an opensuse 12.3 admin node
proceed to the point of alllowing the smoketest framework SSH into the
freshly-installed node and kick off the second stage of the bringup.
Merge pull request #1952 from VictorLowther/pull-req-opensuse-12.3-fixups

Make OpenSUSE 12.3 admin node install process work.