Thank you for this!  I was pulling my hair out trying to OC on 16.04.

As a token of my appreciation, I'll be mining ZEC with the default oneBash until I get a faster usbstick.

I'm having trouble getting my ethernet to work, but I'm sure I'll figure it out. 16.04 server also didn't connect via ethernet until I tweaked a few things, but unfortunately the same tweaks aren't working for nvOC, and my usbstick is  too painfully slow to want to keep troubleshooting. Wifi works no problem though.