> I've been running OpenBSD 5.0 on simh 3.8-1 without a problem, but can't > get it to boot on my MicroVAX 3100-40.
Support for this particular model (KA45 series) was accidentally broken a few releases ago, and was fixed shortly after 5.0 was completed. You may want to install 5.1 when it gets released, or a current snapshot, and these will run on your machine fine. Miod
