@arn I've written up instructions for Jessie inspired by this post (and many other). See here:

http://petr.io/2015/11/09/read-only-raspberry-pi-with-jessie/

@arnt - what did you do with resolvconf?

Hello!

Sorry for being lazy but I would you consider providing pre-built images with all of the work above built-in? Or, alternatively, a script one can use that does all of the above?