On 10/4/2021 6:26 PM, Tony Nicholson via cctalk wrote:
*Neat*! I was
thinking of trying to lay this down on a real 11/23+ here
at the house, then realized I didn't have two RD51's. Can it gen on an
RD53 by chance, I could upload one of those to a disk in a weekend or
immediately with the Dave Gesswin emulator (which I need to return but
we're just about to pull out those big Perqs)
I doubt you'll be able to use anything other than a RD51 drive - as
this ancient V7M doesn't yet support newer drive types. You might
be able to put some of the system files on an RL02 - but I haven't confirmed
there's a RL02 boot loader on this kit.
Back in 1983 the PDP-11/23-PLUS was a relatively *new* machine. There's
later versions of Ultrix-11 (V2 and later) that added support for the 11/73
and bigger drives - look on the Unix Heritage Society site under Unix
Archive. There's a downloadable installation tape for Ultrix-11 there.
Once installed, one ought to be able to gen a system for other devices,
at least for an RL01/RL02, but perhaps not for RD series beyond the RD51
The drivers ought to be there for RL01, RL02, RK06, RK07, RP02/3/4/5/6,
RM02/3/5, RA60 and RA80/81 and more, according to the installation
manual - you just have to do a sysgen.
Might be good to do the contemplated work under SimH first, of course.
For later RQDX controllers, though, you presumably would need to change