Upgrading Ubuntu 14.10 to 15.04 increases stress and adds hours to development.
...seriously. Better off just re-installing. This is my third or fourth week attempting to make Ubuntu give me the functionality I had available with a Windows XP/7 install. Almost had a desktop I could settle on and foolishly decided to upgrade. Now I get to spend hours figuring out why an upgrade should break Mysql in such a terrible way. Found a solution over @ At The Edge Of Time Author Luís de Sousa shows amazing restraint as he steps thru the process of figuring out this horrible mess.