We (INTERACTIVE Systems Corp.) also did a port of UNIX to
IBM's VM/370 for IBM in the mid 1980's. Also ported UNIX
to Hitachi's mainframe in the late 1980's, although it's not
mentioned here:
https://en.wikipedia.org/wiki/Interactive_Systems_Corporation

Heinz

On 10/31/2019 6:51 AM, Tom Lyon wrote:
> The Bell Labs 370 port was different, it was based on running inside 
> of TSS/370, which was an IBM OS which hardly anyone besides Bells's 
> ESS group used.
>
> Clem can tell us all about the IBM/Locus port to the 370.  And maybe 
> there was another IBM port??
>
> Much later, Sun ported Solaris to the Hitachi HDS 370 clones (for 
> Hitachi), and then to Amdahl clones for Amdahl/Fujitsu.
>
> On Thu, Oct 31, 2019 at 12:51 AM <arnold@skeeve.com 
> <mailto:arnold@skeeve.com>> wrote:
>
>     Hi Tom,
>
>     Kudos for making these things available. The links are great reading
>     as well.
>
>     I have the strong impression that this is different from the port
>     at Bell Labs described in the 1984 BSTJ article; can you confirm?
>
>     Warren, can you add the links into the README or whatever that's
>     in the archive?
>
>     Thanks,
>
>     Arnold
>
>     Tom Lyon <pugs@ieee.org <mailto:pugs@ieee.org>> wrote:
>
>     > Hi, folks. Tom Lyon here - this UNIX 370 stuff was recovered by
>     Stephen at
>     > LCM+L from DECtapes that I've had sitting around for 40+ years.
>     > You can read all about the Princeton/Amdahl project here:
>     > https://akapugs.blog/2018/05/12/370unixpart1/
>     >
>     > If anyone wants to get serious with the code, you'll need
>     Hercules with a
>     > VM/370 image as well as a PDP-11 emulator running V6. There's
>     not a lot
>     > beyond the kernel, I got the shell working enough to prove that fork
>     > worked, and then ran out of steam because of the awful communication
>     > problems between the PDP and the IBM.  [ But that was my start as a
>     > networking guy ]. I personally haven't had time to do anything
>     with the
>     > recovered bits.
>     >
>     > I've been lurking on TUHS for a while - a special Hi to Ken
>     Thompson and
>     > Steve Johnson. I owe a lot to each of them. Read about my summer
>     at Bell
>     > with the Interdata 8/32 here:
>     https://akapugs.blog/2018/05/16/belllabspart1/
>     >
>     > On Mon, Oct 28, 2019 at 9:04 PM Warren Toomey <wkt@tuhs.org
>     <mailto:wkt@tuhs.org>> wrote:
>     >
>     > > All, the second Unix artifact that I've been waiting to
>     announce has
>     > > arrived. This time the LCM+L is announcing it. It's not the
>     booting PDP-7.
>     > >
>     > > So, cast your eyes on
>     https://www.tuhs.org/Archive/Distributions/IBM/370/
>     > >
>     > > Cheers, Warren
>     > >
>     > > P.S Thanks to Stephen Jones for this as well.
>     > >
>     >
>     >
>     > --
>     > - Tom
>
>
>
> -- 
> - Tom