I've tried for the last two hours to install OpenBSD 6.8 onto an new HPE MicroServer but so far without success.
Installed the .img file onto a USB stick (via Balena Etcher on a Macbook).
Booted up the device and eventually got it to boot from the USB stick.
The USB keyboard works initially, i.e. it allows me to press carriage return at the boot loader prompt.
When I get to the 'Install, Upgrade...' prompt the keyboard no longer responds.
I've disconnected and reconnected the keyboard and get the expected messages on screen to show that these actions have taken place.
I've subsequently installed FreeBSD 12.2 and that's gone in with no issues at all (trouble is, whilst I could use FreeBSD for what I intend to do, I've prefer to use OpenBSD).