@7

> I have started setting up the first machine in my cluster

NICE

> when I do that I lose access to terminal and can’t edit the plan9.ini again

What does `9fs 9fat` say? Can you see the device anywhere in /dev?

Typically what you do for CPU servers is PXE them, so the plan9.ini comes from the PXE files on the fileserver. So by default, cpu(1) and drawterm access don't provide disk services, those are usually diskless. There are a handful of things designed to only be available with physical access (which means VNC if you're running it in a VM or something); ANTS gives you this on port 17060 (the ramdisk-embedded-in-kernel environment, which is why you have to do `rerootwin -f boot` to get to the regular environment from there), so you can drawterm in.

(The punchline is `bind '#S' /dev`. See `man sd`, `cat /dev/drivers`.)