I was tasked recently at work to create a new instance of MySQL in a server where there were two (2) instances already existing and running. This task should have been a breeze and done in no time. Unfortunately, I was working on a GNU/Linux distribution, okay Ubuntu, with AppArmor activated with security profile for MySQL, and I figuratively banged my head on the wall for almost a week why the steps I follow doesn't work, I already stripped the config file to the minimum and the setup still won't work. Turns out AppArmor is in my way in it's objective to secure the system it runs on.