Just an observation for users of the Pi 2

[jpsc]

I could not get fstab to automatically mount a thumb drive, whereas it was working with the B+

It turns out that the new Pi boots too quickly and the USB stick is not ready

To give it time, add rootdelay=5 at the end of cmdline.txt after rootwait (NOT rootwait=5 - that hangs the boot)

[steve]

That's interesting - I have a USB hard drive and that didn't seem to be getting mounted all the time, presumably this would also apply to that?

I switched off my Windows server at the weekend, I'm now using my Pi2 for my main Cumulus installation and all my other server needs.

[jpsc]

More than likely. For a rotating drive you might need a bigger delay, I don't know what the units are, seconds?

Increase it until it works then add 5 maybe.

[tumutbound]

Units are seconds.
I run a USB hard disk on my Pi and 5 seconds seems to be enough.