I have my .minecraft folder on a USB drive, but it's getting old to keep copying and pasting it into my root directory every time I want to play. It's nice keeping all my Minecraft files on a USB, but I would like to be able to run the entire game from the USB. It seems that Java always looks on my PC's program/app data files even if I run the Minecraft launcher from the USB. Is there a way to change Java's default root directory to a USB?
I am using a Linux Mint.