- I planned to use Gentoo (which I love) but amdgpu-pro is not available for it yet (well, not in a working condition) and amdgpu+MESA instantly crashes with ethminer (claymore refuses to use MESA).
- then I tried to fall back to Ubuntu (which I hate) but I had some issues with amdgpu-pro (and since I hate debugging Ubuntu problems, I gave up fast)
- finally, I settled for Win10 (which I like and prefer over Win7)
I quickly checked the hashrate in Win7 but saw no meaningful difference compared to Win10, so I was pleased the Windows line is not restricted with these cards.