RSTS/E and PDP 11/23

From: Ethan Dicks <>
Date: Mon May 17 16:29:51 2004

On Mon, May 17, 2004 at 11:05:25AM -0400, Ashley Carder wrote:
> I acquired a PDP 11/23 this weekend. It runs RT-11, which boots fine from either the RL01 or RX01s. Has anyone ever attempted to run RSTS/E on an 11/23? I was thinking about attempting to SYSGEN RSTS/E v7.0 on this machine, but in looking over some info on RSTS/E, it does not list the 11/23 as one of the systems that RSTS/E will run on.

Hmm... good question... we used to run RSTS/E v7.0 on Unibus hardware, and
RSX 11/M 4.x on Qbus hardware, but I don't know if that was because of a
compatibility issue, or our own machine availability.

The 11/23 and 11/24 have a KDF-11 CPU chip, so it can't be that. I would
_think_ that if you could get a tape controller that was compatible with
whatever RSTS wants (I'd guess "MT", not "MS", given the era), and you had
a compatible disk controller, an RLV11 or RLV12, I don't know why you
_couldn't_ bring RSTS/E 7.0 up on an 11/23.

5MB isn't a lot of room, but it is probably enough. You have a blank
pack for that RL01? What are you using for a v7.0 distro? That, I think,
would be the limiting factor.


Ethan Dicks, A-130-S      Current South Pole Weather at 17-May-2004 21:20 Z
South Pole Station
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Received on Mon May 17 2004 - 16:29:51 BST

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