I would like to run 9legacy on OpenBSD as well. Unfortunately, I'm still learning and even though finding and ideally contributing solutions to such bugs is a distant goal of mine, my only current option is to run on 9front.
"Since VMM doesn’t provide any display functionality, 9front’s console has to be redirected to virtual serial port by adding console=0 to plan9.ini. It makes sense to also use display=none while at it.
Note that even though you might not have a chance to modify plan9.ini before booting, stopping boot process with an early hit of a key, typing an additional configuration in, and then boot<ENTER> is ought to work."
Unfortunately, the only way I know to start a VM under OpenBSD is to set up the vm in /etc/vm.conf, enable and start vmd via rcctl and then connect via SSH or vmctl console.
Could someone possibly help me out and explain how I can edit the plan9.ini during the boot process, please?
Thank you very much in advance!