Well, I'm sure you're doing the right thing by the Green Book.

However, it still remains, as far as I can remember, that OSF/1
will do a reboot when you say 'reboot' from the root prompt, no
matter what the prom settings are.

I'll look into this further, perhaps later today after I get
a couple of other things done.

I should note that a reboot is neither an "error halt" nor a "powerup"
condition.

-matt