DE5_NET OpenCL support on Ubuntu 16.10

Terasic only officially supports CentOS 7 right now, you should not use any other OS unless you are willing to dig through and manually fix all the problems you will face like what you mentioned above. There reason why they specifically stick to CentOS is that they don't want to spend their resources on keeping the driver updated for the quickly-changing kernels on Debian/Ubuntu/etc. Needless to say, you will not receive any support from Teraisc unless you use a supported OS, either; the first thing they will tell you is to switch to a supported OS.

Furthermore, Terasic has not released a BSP for Quartus v17.0.2 yet. Even though their v16.1 BSP might work with the newer Quartus on their Stratix V board (but definitely not the Arria 10 one), I recommend sticking with Quartus v16.1.2 to avoid more headaches.