Looks like this guy has everything you need for installing BSD 2.9 on a PDP 11/70 under SIMH, including instructions and a source "tape". http://gunkies.org/wiki/Installing_2.9_BSD_on_SIMH p.s. I'm super envious of the PiDP 11/70 kit. I sure wish I was building one tomorrow, but I have to wait until...

Many thanks to ejolson for writing this up. I am posting a few minor but crucial edits. Like MaxK1 , I too am trying this on a cold Minnesota day, and I couldn't get the `dz` device working; the `ls -l unix` command returned only 52580 bytes, not 54866. Also, I got an error ` dz: cannot find ` when ...