Hi,
with NetBSD 5.1, the install kernel needs to be booted with a
kernel module loaded (the miniroot kernel module).
This means that any installation attempts following this old
avenue will FAIL from this point forward:
* dropping to the boot prompt
* switch to serial console
* resuming boot with just "boot"
which used to work just fine in the past, but will now fail
spectacularly, first with a warning about missing /dev/console
and subsequently with no ability to exec /sbin/init, and with
only "reboot" as the remaining option.
Now, there are probably several ways to go around mending this.
Some of them are:
1) provide a way to display the contents of boot.cfg (but need to
prevent showing the "contents of /netbsd"...)
2) provide a way to recall and edit one of the boot commands from
boot.cfg (sounds complicated, and more than I intended to chew
off in this round)
3) provide a way to re-enter the boot menu you dropped from in
the first step in the procedure above, and then allow to
select one of the boot methods already specified in boot.cfg