Subject: Re: VTSERVER booting
From: Patrick Finnegan <pat at computer-refuge.org>
Date: Sun, 19 Jun 2005 20:06:17 -0500
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>
I'm not 100% sure if it's your problem, but 2.11BSD doesn't work on the
F11 chipset (11/23) because it doesn't have split I&D space. You'll
need to use 2.9BSD or earlier on it.
There are two versions of 2.11 if memory serves one with split
I&D and one without.
I have to check but fuzzy memory says 11/23 had I&D or was that later
with the J11? I distinctly remember the MMU of the 11/23 as being
software compatable with 11/34, 11/69 and 11/70 (to the limits of
Q18 or Q22).
I know the Falcon, LSI-11/ and 11/2 did not even have MMU.
Allison