i ran into this myself the other day. you already got good advice, so i will just make one comment.
On Sat, 9 Jan 2016 18:54:22 +0900 Joel Rees <joel.r...@gmail.com> wrote: > Do I need to backup my data, wipe the OS, and re-install from a snapshot > kernel? > it's unlikely you will ever have to nuke the system. upgrading from snapshots should always work.