I've noticed that some architectures provide:

  .../ARCH/installation/instkernel

in the release (for example NetBSD-1.4.2/alpha has this) while others
don't (notably, macppc, pmax).  I was wondering why.  Since macppc should
be able to boot from a CD-ROM (and pmax too in -current), it would be nice
to have a sysinst kernel available for making bootable CD-ROMs.

thanks

-Dan