assuming you have a apu2|apu3|apu4 from pcengines or a virtual machine running on KVM/Qemu. And you don’t have vga/dvi/hdmi whatever kind of video output. of course, you can install and run OpenBSD (or Linux) on this boxes.
Prepare USB Stick write openbsdxx.img to an USB Stick. On MacOS, you can use Balena Etcher for example.
boot.conf if you wanna install from an USB Stick, set the correct Port and Speed before booting.
How to Access APU “B” from APU “A” via Serial Console (USB to Serial Device) APU “A” Connect USBtoSerial Adapter
Connect to Serial Console on APU “B”
APU “B” /etc/ttys tty00 "/usr/libexec/getty std.115200" vt220 on secure APU “A” cu -s 115200 -l /dev/tty00 cu -s 115200 -l /dev/cuaU0 (8 Port USB2Serial Device) -> you have now Console Access to APU “B”
Hardware https://www.amazon.de/LogiLink-AU0033-USB-Adapter-Serial/dp/B00BBXHOAY Any Comments ? sha256: 28cee1e19429893ed3a288609d580ce28305a3c80961771d3a495403af3cf3c5