How do I upgrade a mkusb Persistent Live system from 16.04 to 18.04
I have a 16.04 Persistent Live flash drive made using mkusb.
It is set up just how I want it.
I want to upgrade to 18.04.
When I copy the 16.04 casper-rw partition to the new 18.04 flash drive everything goes wonky.
What can I do?