My iPod nano (6th gen) is stuck in a loop.

I have a 6th generation iPod nano, the blue one, it has worked flawlessly up to this point and I have no idea why it has suddenly failed. It is stuck in restore/recovery mode, where it says I need to connect to itunes and restore it, but when I connect it to my computer, it goes into disk mode and fails to mount. I am running ubuntu (it had no problems mounting) but I also have a windows vm that I can use with it.

Any help is appreciated,

J.Runyan