I know that it's not exactly what was asked for, but DEC's OSF/1 V1.0
source is floating around out there in the ether, which is a fusion of Mach
2.5 and Ultrix 4.2.  It's the original release, for MIPS-based DECstations,
of what eventually became Digital UNIX / Tru64.

-Henry

On Sun, 23 Jun 2019 at 04:05, Jason Stevens <jsteve@superglobalmegacorp.com>
wrote:

> The fractions I've found of the 2.5 is on the CSRG #4 cd
>
> https://vpsland.superglobalmegacorp.com/install/Mach/MACH_CSRG_CD.7z
> <https://vpsland.superglobalmegacorp.com/old/install/Mach/MACH_CSRG_CD.7z>
>
> You have to read the 404 to get the password. It changes frequently.
>
> I've been slowly trying to get 2.5 to build under Mt Xinu BSD/Mach.
>
> I've managed only the tools and bootloader so far.  I've just been busy
> moving offices the last week.
>
> Anyway in that directory is a bunch of other Mach stuff I've found.
>
> I also started trying to map the Mach 3.0 stuff
>
>
> https://unix.superglobalmegacorp.com/cgi-bin/cvsweb.cgi/?sortby=file&only_with_tag=MAIN&hideattic=1&hidenonreadable=1&f=u&logsort=date&cvsroot=Mach3&path=
>
> Including BSDSS a unknown to me port of BSD to Mach 3.
>
> It seems plenty of the Mach 1/2 stuff is hidden on CMU's servers in wait
> of the ATT v CSRG lawsuit.  And that everyone who worked on it left so it's
> locked away hidden.
>
> There is a vmdk of the mt Xinu installed that will run on qemu and most
> likely others as well.  So you can take it out for a test drive
>
>
>
>
>
> *From: *Chris Hanson <cmhanson@eschatologist.net>
> *Sent: *Sunday, June 23, 2019 12:46 PM
> *To: *tuhs@minnie.tuhs.org
> *Subject: *[TUHS] CMU Mach sources?
>
>
>
> Does anyone know whether CMU’s local Mach sources have been preserved?
>
>
>
> I’m not just talking about MK84.default.tar.Z  and so on, I’m talking
> about all the bits of Mach that were used on cluster systems on campus,
> prior to the switch to vendor UNIX.
>
>
>
> I know at least one person who had complete MacMach sources for the last
> version, but threw out the backup discs with the sources in the process of
> moving. So I know they exist.
>
>
>
> If nothing else, CMU did provide other sites their UX source package (eg
> UX42), which was the BSD single server environment. So I know that has to
> be out there, somewhere.
>
>
>
>   — Chris
>
>
>
> Sent from my iPhone
>
>
>