unfortunately, somehow I cannot get photos from a camera to the PC, but I’ll try to describe:
1st stage is the one with the blue lettered/symboled NomadBSD logo - the one with the 4 + 2 options. (If I don’t stop the countdown by Esc, then it continues to the 2nd stage.) I thought that maybe AMD/ATI Graphics could be the issue. But honestly, I don’t know how to enter/activate them (neither highlighted letters, nor the numbers work - “Unknown command” is the system’s response; I’ll try the Fs, yet).
2nd stage happens when I either do nothing or hit Enter in the 1st stage - then a long sequence that, ends with the “mountroot” - thus I tried USB 2.0 port, but that did not help. Hitting Enter with the mountroot weirdly leads to booting (the pre-installed) Losedows.