I have an Ubuntu 14.04 system running (dual boot) on a Dell Laptop machine. It happens to have a Broadcom wireless device in it, such that after initial installation, I need to follow the instructions here in order to get the wireless functionality to work.
Generally this involves a wired ethernet connection to a router to provide temporary internet connectivity.
I want to upgrade to 16.04, but may be forced by other circumstances to do so without access to an ethernet connection. The question is: Will this work? Or will the upgrade process undo (during or after) the solution to the Broadcom issues leaving me in a dire position?