Mach 2.5 sources?

[Michael Engel]

Hi,

I'm not sure if anyone using Mach (and especially, one of the
developers) is still reading this group, but I'll give it a
try...

I'm aware of the fact that getting Mach 2.5 source code required
an AT&T source license. As Unix 32V and earlier versions were
released under a BSD-style license by Caldera in 2000, is it still
necessary to own an AT&T license? It seems that 4.3 and 4.4 non-lite
BSD source code are also available on tuhs.org now.

If no license is required nowadays, does anyone still have a copy of
Mach 2.5 sources lying around that could be made available?

regards,
Michael
--
Michael Engel - en...@informatik.uni-marburg.de
Philipps-Universitaet Marburg - FB Mathematik und Informatik
Hans-Meerwein-Str. - 35032 Marburg, Germany
Tel. 06421 / 28 21562 - Fax: 06421 / 28 21573

[Wojciech Galazka]

http://www-2.cs.cmu.edu/afs/cs.cmu.edu/project/mach/public/src/

No paid license is required to use Mach these days

[Michael Engel]

Wojciech Galazka <wojciech...@polkomtel.com.pl> wrote:

> http://www-2.cs.cmu.edu/afs/cs.cmu.edu/project/mach/public/src/

> No paid license is required to use Mach these days

...and the only thing you can find there are Mach 3 sources and
related things. 2.5 does not seems to be avaiable there...

Michael
--
Michael Engel - en...@informatik.uni-marburg.de
Philipps-Universitaet Marburg - FB Mathematik und Informatik
Hans-Meerwein-Str. - 35032 Marburg

[The Eighth Doctor]

In article <cqu1kt$nvq$1...@surz18.uni-marburg.de>,
en...@informatik.uni-marburg.de says...

Hello from the Eighth Doctor
I might be preaching to a choir, but have you ran a search engine query for the
elusive Mach 2.5 sources?
--------
GCL drwho8 atsign att dot net
"This signature supports the fight to free Gowandaland."

[Michael Engel]

The Eighth Doctor <drwho8_...@att.net> wrote:
> Hello from the Eighth Doctor
> I might be preaching to a choir, but have you ran a search engine query for the
> elusive Mach 2.5 sources?

Of course I did - without success. At least with the obvious keywords...
Any tips? ;-)

regards,

[The Eighth Doctor]

In article <crsbsk$1k5$1...@surz18.uni-marburg.de>,
en...@informatik.uni-marburg.de says...

Not really, But you might try visiting ftp.uu.net and looking inside the various
directories that live there. Also Mach is now technically obsolete. You might try
looking at GNU HURD. Also on the Flux server at flux.cs.utah.edu .
---
Gregg drwho8 atsign att dot net

[neo...@gmail.com]

I have been searching for 2.5 for well over 15 years. Probably closer to 25.

So I feel justified bumping this ancient post, although I do not think anyone from this thread will see it.

I found the source hiding on CD4 of the CSRG archive. I should have paid the $100 back when I got my personal SYSIII license.

Anyway the key thing to getting this to run was getting disk images of Mt Xinu's Mach386 product. It has an appropriate build environment to get this built.

So I present on sourceforge.net of all things (because they have survived this long) a ready to run disk image with the 2.5 kernel & sources along with the Mt Xinu userland.

There is no userland sources or the libmach/libthreads sources sadly. Although the system is capable of building the kernel itself it is not 100% self hosting.

There is 2 kernels the MK35 and the X147. The later is more capable and incorporates many fixes from Mt Xinu. Also by default there is a bug in start.s where the protected mode bits are changed in the wrong order. That has been fixed here. Also of note that the CMU mach here cannot read Mt Xinu hard disks, so this disk image is in the CMU format. Although at the same time the Mt Xinu kernel can read the CMU disks.

So here you go, 15 years later.

https://sourceforge.net/projects/bsd42/files/4BSD%20under%20Windows/v0.4/Mach25-MK35.vmdk.7z/download