After successful installation of Ubuntu 12.04.2, a change is needed from graphics-less Ubuntu server terminal-style interface to a Linux Mint graphical interface.
I have booted with an inserted Linux Mint 15 Cinnamon install disc. I had no response beyond an initial prompt between similar "Ubuntu with Linux" options that led to operation just like it was without a disc-inserted-boot without a directed Linux installation.
This situation is Ubuntu server operating on 160 GB of 320 GB with an operator who's inexperienced with terminal-style interfaces and a need for a graphical interface.