In message <20010522052630.792931E4CA@thoreau.thistledown.com.au>, Simon Burge 
writes:
>Between http://www.NetBSD.ORG/Documentation/bootcd.html#alphaimage and
>installboot(8) you should get enough info...

Hmm.  The info there seems to be suffering bitrot to some extent; it has
a "-a" flag to mkhybrid, which now gets errors.  I omitted it, and it seems
to be working so far.  Thanks!

-s