I need a small CNC controller for desktop robots and machine tools. Thus I decided to try LinuxCNC with Raspberry Pi and MESA 7i90HD. I have Raspberry Pi 2, and Pi 3 has been ordered recently from aliexpress.
Surprisingly (or not so much) there's no clear manual how to install LinuxCNC on a Raspberry Pi. A lot of information is available, but in very different places (a debt to collect). I'll try to get everything together here.