Ubuntu 18.04 – VFIO PCIe Passthrough

I managed to VFIO one of two identical GPUs in Ubuntu, there is a guide on this Forums, that i used and worked, ist something new, update in 2019.
Here is the link to the guide:

It doesnt have “similar gpu” tags in the title, so ist maybe hard to find.
I must mention that i run latest kernel 5.1.15 (with zfs 0.8.1) so perhaps thats a factor as well, i dont know