centos
a.k.a. CentOS Linux release 7.2.1511 (Core) with Kernel 3.10.0-327.3.1.el7.x86_64. The most difficult part was the upgrade of the Timemachine backup server, because of the netatalk paackage. I ended with building the netatalk RPMs from source on the Centos Desktop
nexus
Super easy upgrade without any configuration changes. Ducumentation updated accordingly.
nexus
Move to the jetty-bundled package.
upgrade
I finally succeeded with upgrading, but had a nightmare while doing so ;-) First i wanted to migrate to the jetty bundled version of Nexus, but for some reason that didn't work out well. So i have to use the old way via self hosted Tomcat 8 and