Shucks my Nexus 5 is stuck on the boot screen (the swirling dots)... I cleared the cache this morning (using Recovery), rebooted and now I'm stuck here. Been this way for about an hour already.
What do I do?
EDIT: So apparently I didn't wait long enough for the flash to format - it takes minutes (not seconds like a lot of other phones/guides say). Supposed to give me a notification when it was done but I just rebooted after a couple of minutes.
Crap.
According to this:
http://forum.xda-developers.com/google-nexus-5/help/help-nexus-5-bricked-clearing-cache-t2564509
... I should download the stock image and than flash the cache.img file from it. Downloading now, then I'll do that.
(Basically if I go into recovery and try and clear the cache partition again, I get "failed to mount /cache")