> Have you ever logged in since install, ie done upgrades?
No - this is a fresh install. I was using the previous build (archlinuxarm-29-04-2012) without problems, but have not been able to login on archlinuxarm-13-06-2012 at all.
> If no, I can't help, sounds like corruption.
This was my thought but have redownloaded, checked hash and re-imaged.
> If yes, there was a blip with previous kernel, now fixed, so burn and upgrade again.
I will keep trying - was really just looking for confirmation that root:root should work.
Is a firmware update required?