I'm in search of ways to break Ubuntu. Why? Practice! I'm setting up a simulation lab using virtual machines and I'm in need of ways to break Ubuntu. Where can I go to find some? I was thinking to do some GRUB errors because I remember when first setting up Ubuntu, I got those errors. I need to recreate them, but I don't know how. Maybe a Black Screen of Death too. Any suggestions is appreciated! Need as much practice as I can get!