SUSE announced recently that it managed to take its enterprise-grade platform, SUSE Linux Enterprise Server (SLES), and marry it with the Raspberry Pi. Fancy that—a platform created to support massive workloads and mission-critical services running on a $35 computer.
You can download a 60-day evaluation of SUSE Enterprise Server 12 SP2 for Pi (login required). Be sure to check out the quick start guide. If you have trouble with subscription codes for SUSE Enterprise Server 12 SP2 for Pi, check out this forum thread.