On Fri, Feb 3, 2017 at 2:31 PM, Paul Koning <paulkon...@comcast.net> wrote:
> > > On Feb 3, 2017, at 12:00 PM, Noel Chiappa <j...@mercury.lcs.mit.edu> > wrote: > > > >> From: Paul Koning > > > >> Another OS that would run on your machine (as well as an 11/20) would > >> be RSTS-11 (V4, or I suppose V3 if you can find that) > > > > I'd love to have an old RSTS-11, is there any variant around? > > Yes, on bitsavers. But John's comment reminds me that RSTS-11 V4A doesn't > support RL02. (Only RF11, RK11, RP11.) V4B may be different, I don't know. > > >> didn't use the MMU > > > > Huh? He's got an MMU (I think): it's the EIS he's currently struggling > with. > > True. I meant to point out the main difference between RSTS-11 and > RSTS/E. The other difference is that it doesn't require EIS. Both follow > from the fact it was designed for the 11/20. > > paul > > So you're saying for a system with a MMU but no working EIS (removed for now) and 64KW RAM (half populated M7891) you're suggesting which OS? I still have to research the best options, RSX-11M? I was able to get the extended three cables so I can put the M7238 EIS card on a riser so I can probe for faults, and maybe if I am lucky boot XXDP+. With the EIN installed I can't boot RT-11