Description of problem: Spacewalk setup (setup.Pm) needs to support Oracle 12.2. Oracle 12.1 for Linux is no longer available for download. http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html
https://github.com/spacewalkproject/spacewalk/pull/523
This PR has been accepted and merged into master as spacewalk.git: abe300c8d3b930c0a751648d4ce5e1cf7036a949
Spacewalk 2.7 has been released. https://github.com/spacewalkproject/spacewalk/wiki/ReleaseNotes27