After few days playing in VM, I tried dfbsd on the real hardware.
lenovo G50-80 with i3 processor, 8GB ram, 1TB hdd
and Intel wlan.
Installation went smoothly, got backround from VM.
But only wired network. Hamdbook mentions
that it could happen that wlan is unrecognized,
but dosn't mention what to do.
I expected my driver to be named iwm, so according to iwm(4) man page
loader.conf was modified. After reboot, voila, ifconfig has another
interface listed.
Another surprise was that xorg keyboard didn't work.
After some googling, I installed libinput, added one line in sysctl.conf,
and now works.