Warner Losh imp at bsdimp.com
Sat Aug 21 23:09:39 CDT 2021

On Sat, Aug 21, 2021, 9:50 PM Jay Jaeger via cctalk <cctalk at classiccmp.org>

> On 8/17/2021 1:39 PM, Paul Koning via cctalk wrote:
> > I thought V7M and Ultrix were entirely diferent and unrelated things.
> >
> > At least on the Pro, DEC released a betal version of the one (which I
> tried when it came out) and then canceled it and replaced it by a release
> of the other.  I forgot which came first, other than that the beta was
> really clunky.  As in, a "vi" that didn't do real screen updates...
> >
> >       paul
> >
> >> On Aug 17, 2021, at 2:16 PM, Al Kossow via cctech <
> cctech at classiccmp.org> wrote:
> >>
> >> images up under
> http://bitsavers.org/bits/DEC/pdp11/floppyimages/rx50/V7M-11-V1.0_6_USR_RX50-QJ083-H3.zip
> >
> They are indeed different.  V7m is based on 7th edition A&T UNIX,
> whereas Ultrix was based in BSD.

Ultrix32 was based on 4BSD, but Ultrix-11 is very definitely v7m rebranded.
Ultrix--11 2.0 did pull in some improvements from 2.9BSD, System III and
System V, at least according to the SPD. Ultrix-11 3.0 pulled in networking
from 2.10BSD (or 2.10BSD got it from Ultrix) at least based on source



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