I bought a Robomaker developer kit, but it says come with Ubuntu 16.04 preinstalled, is it true? I turned on for the first time the Up2 and goes straight to the bios, is it normal?
I am sorry about that, your are correct, it should be preinstalled.
We have published a tutorial to setup the system and it is available in our wiki: https://wiki.up-community.org/UP_Squared_RoboMaker_Developer_Kit
It is useful also to restore the system in case you want to start from scratch.
Let us know if you may have any issue