11 May
2022
11 May
'22
2:43 a.m.
On Tue, May 10, 2022 at 1:35 PM Richard Salz <rich.salz(a)gmail.com> wrote:
Per wikipedia (FWIW), V7M was for PDP-11; Ultrix was
the first VAX unix
project and based on 4.2BSD. https://en.wikipedia.org/wiki/Ultrix
At some point, Unix V7M was rebranded as Ultrix-11 and pulled in a lot from
the BSD releases (2.9 or 2.10) to get TCP/IP
networking onto the PDP-11. I don't think DEC ever shipped pure AT&T
binaries. The V7M was a modified version of V7,
with most of the modifications in the kernel to fix a few bugs with buffer
handling, and also make it run on all the different
PDP-11 models.
All the sources to V7, V7M and the last Ultrix-11 version are in TUHS for
people to peruse...
Warner