So I was really pretty negligent on maintaining my Pogoplug. I decided to upgrade to CouchPotato v2 and saw practically everything was out of date; the worst being glibc and by proxy, pacman. Well, suffice it to say I fucked things up and my /etc/shadow and passwd got messed up and I can't log into my device anymore.
I'm totally willing to wipe everything, but frankly I'm at a loss of where to begin since I can't even login.