I can verify that AIX/386 and AIX/370 were a common set of SCCS sources at Locus when they did the development for IBM.   So if you can find the base sources for the one you should have much of the other.   There were obviously some low level tools that were specific to each architecture and the compiler back ends were different. 

I do not have access to any of the that, as I was not directly involved with that project, since I was leading the TNC work for Intel, HP, DEC and Sun; I was specifically fire walled from the original IBM TCF project at the time (I was one of the architects and we all got together regularly but for legal reasons, Locus was careful about who had access to what sources).    I know folks that did have access to the IBM IP and I can ask around. i.e. Walker, Joe Hopfield, et al would people to ask, if you can find them.

On Wed, Nov 22, 2017 at 4:38 AM, Kevin Bowling <kevin.bowling@kev009.com> wrote:
I was asking about s/370 UNIX flavors

I can help you with AIX for i386, I’m probably one of the main “historians” for that vintage of IBM stuff.. here ya go http://ps-2.kev009.com/aixps2/. All the docs are scattered on my server there. It WILL run under virtualization but is picky anout which. Google will point you to guides. 


On Tuesday, November 21, 2017, Wesley Parish <wobblygong@gmail.com> wrote:
As would I. I'd also be interested in that i386 AIX Clem mentioned.

It would be interesting studying the different ways the *BSD and the
SVR4 and the AIX people etc adapted the Unix code to the i386
architecture. It'd make an interesting topic for discussion. (Likewise
in comparison with the "native" i80x86 Unix-like OSes like Coherent,
Minix and Linux. :)

Wesley Parish

On 11/22/17, Kevin Bowling <kevin.bowling@kev009.com> wrote:
> I'm also interested if any of these s/370 *ix ever escaped captivity.
> The earliest stuff may be covered by Novell's grant of early code.
> I'd be willing to pay for a lawyer to help liberate any contested
> material.
>
> I have an R/390 (1990s era), z800 (2000s era) and z114 (2010s era) at
> home.  And Hercules.  Would be fun to run *ix on any of them.
>
> Regards,
>
> On Sun, Nov 19, 2017 at 5:57 PM, Nemo <cym224@gmail.com> wrote:
>> Recent commentary on porting led me to read the article on porting
>> UNIX to S/370 (https://www.bell-labs.com/usr/dmr/www/otherports/ibm.pdf)
>> to support 5ESS development because the existing PDP11s were being
>> overwhelmed.  I confess to not having this read this before and find
>> it interesting.  Any recollections from anyone on the matter.  And
>> whatever happened to it?
>>
>> N.
>