I attempted to upgrade from 15.10 to 16.04 last night - it appeared to hit a point in installation where it started to hang then froze/failed overnight. I bought the laptop originally with Windows 7 and Ubuntu dual boot. Before upgrading I backed up my user's /home directory. Now on boot Ubuntu won't mount and just freezes immediately.
Having never done an install on my own (rather previously using vm's), can I install 16.04 from a jump drive and have it overwrite the failed 15.10 instance then just restore my backed up directory? Or will doing so install a fresh 16.04 instance with its own partition?
I apologize in advance if there are many other 16.04 upgrade questions - thanks in advance.