I have never used linux or ubuntu. I may should just leave this alone.
thats the point, you dont have to do anything with linux

just flash it to drive (if you have problem i can help you via team viewer this one time)
then insert your btc,eth and siyacoin addresses and wiola. you can boot it and forget about it.
I want to make this system as simple as possible and in week or two there will be managing rigs via website - simple and easy.