Unix or BSD for Dec PDP 11/34 and 11/45

devin davison lyokoboy0 at gmail.com
Fri Sep 17 07:29:07 CDT 2021

Thank you for the valuable information.
It seems like v7 unix will be the way to go. Perhaps i can get some uucp
connection going over a serial line out of the machine, that could be

I found this page, and it confirms what you said about 2.11 bsd, not
compatible with the 11/34 cpu.


On the same page, there is mention of 2.9 bsd, and the 11/34 is listed as
compatible. Is tcpip availible in this version?

Thank you again for the helpful info.

--Devin D.

On Fri, Sep 17, 2021, 7:55 AM Pete Turnbull via cctalk <
cctalk at classiccmp.org> wrote:

> On 17/09/2021 12:37, devin davison via cctalk wrote:
> > I'm working to get my pdp 11/34  and 11/45 running. I was curious what
> > versions of unix or bsd would work on the machines i have. I wanted to
> set
> > up  the systems with a bunch of dumb terminals and show them off at a
> local
> > maker fair.
> 7th Edition Unix would run on either machine, and will support multiple
> serial terminals.  BSD 2.11 needs split I/D space, which the 11/34
> doesn't have.
> > If possible too, id like to be able to telnet in to unix or bsd.I was
> also
> > curious if a ethernet interface exists for my unibus systems, or if i
> could
> > SLIP/PPP serial to another machine,so i could telnet in as well as use
> dumb
> > terminals.
> 7th Edition has no Ethernet/TCP/IP capability.  BSD 2.11 does.
> --
> Pete
> Pete Turnbull

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