> > > On 2/2/17 11:32 AM, william degnan wrote: > > All this talk about compatibility...was there ever UNIX made for the PDP > > 11/40 and RL02, or was it only run on RK05? Wouldn't all of the C and > wake > > calls, etc issues have been solved then? Why is this an issue now? I am > > largely ignorant to the details but from 20000 feet it would seem like > this > > would have been taken care of long ago. No need for pre-processing code, > > etc. Please educate me if I am wrong, just curious. > > > > Bill Degnan > > > > On Thu, Feb 2, 2017 at 2:36 PM, Al Kossow <a...@bitsavers.org> wrote:
> DEC V7m comes to mind. Yes, but in 1974 that was not an option. I guess the 74-77 version of UNIX that would have been installed on a PDP 11/40 would have been made for RK05 drives. It would prob be worth the effort to find a version of UNIX 6 for that media and port to RL02, rather than take a vanilla UNIX 6 and try to make it work on RL02's and re-solve all of the problems that have already been solved for the RK05 version. AND the RL02 is larger so moving a multi-disk UNIX for RK05 disks/partition would not be confined by space. b