I'm new to Ubuntu and I want to run steam games from my SD card on Unity. I have a 32 Gigabyte SD card and I was able to install all of my games onto it. But when I shut down my computer, all of my programs were uninstalled! The files are still there, but the game says it needs to re-download all of it. It is mounted and I don't know what to do, Any help? also if it helps I am running Unity 14.04 LTS on Chromebook.