How to connect a Nexus 10 to transfer files?
Solution 1:
I don't know if this will work on the 10, but what I did for my 7 was installed a program called gMTP. It's kind of slow and glitchy, but it works. I don't fully understand exactly why it doesn't just open like a regular flash drive though.
Solution 2:
I came across this article discussing the topic, if it helpful at all. It specifically speaks to mounting Android 4.0+ devices in Ubuntu and the issues with MTP.
http://www.webupd8.org/2012/12/how-to-mount-android-40-ubuntu-go-mtpfs.html