> To: netbsd-users@NetBSD.org
> Subject: changing the boot console
> 
> I have a NetBSD (-current, if it matters, which I suspect it does not)
> that was configured for a 'com0' console.  I've now moved the disk to
> another machine where I want it to have a 'pc' console.  How can I
> change it?  I've tried using an install CD to get the boot prompt,
> saying 'consdev pc' followed by 'boot hd0a:netbsd -s'; it gives the
> 'Hit return' prompt, but never listens to keyboard input.  I've also
> tried rerunning installboot, again to no avail.
>
> Suggestions?

is it custom kernel without vga/wscons/pc display support?

if so - it's exactly what you say.

boot generic kernel and recompile yours to support vga as console