> From: "Tobias Russell" <toby(a)russellsharpe.com>
> To: "PDP Unix Preservation Society" <pups(a)tuhs.org>
> Date: Mon, 2 Sep 2002 08:38:26 +0100
>
> Hi,
>
> I have a micro PDP11/73 equipped with an RD53, RX50 and a Cipher mag tape
> drive (untested). The machine currently boots into TSX (although I don't
> have usernames/passwords so no shell access).
>
> I'd like to get BSD2.11 onto the machine. What is going to be the best
> route? I assume that my chances of breaking through TSX security (so I can
> use kermit) are small, so is vtserver going to be the easiest method?
I haven't done it in many years, but after you get the machine to
boot into RT11 you can disable the TSX security stuff. Probably a file
named "STARTF.COM" is the initial RT11 startup and it contains the
command to chain to TSX.
I suppose the easiest break-in tool would be a floppy disk with a bootable
RT11 on it.
carl
--
carl lowenstein marine physical lab u.c. san diego
clowenst(a)ucsd.edu
Unix was _developed_ on the 11/20. The first versions (up to the
fourth or fifth edition or so) didn't require an MMU, and, therfore,
had no protection whatsoever.
Dennis... tell us the "All out?" story.. please.. :)
--fred
> -----Original Message-----
> From: Dave Horsfall [mailto:dave@horsfall.org]
> Sent: Monday, September 02, 2002 3:02 AM
> To: PDP Unix Preservation Society
> Subject: Re: [pups] PDP-9?
>
>
> On Sun, 18 Aug 2002, Lars Buitinck wrote:
>
> > we all know that UNIX first ran on the PDP-7 and then on
> the PDP-11/20,
>
> Just got back from overseas, but this doesn't seem to have
> been addressed:
> AFAIK, Unix never ran on the 11/20 (no MM unit); did you mean
> a DEC-20?
>
> --
> Dave Horsfall DTM VK2KFU dave(a)esi.com.au Ph: +61 2
> 9906-3377 Fx: 9906-3468
> (Unix Guru) Pacific ESI, Unit 22, 8 Campbell St, Artarmon,
> NSW 2065, Australia
>
> _______________________________________________
> PUPS mailing list
> PUPS(a)minnie.tuhs.org
> http://minnie.tuhs.org/mailman/listinfo/pups
>
Early editions of Unix did run on a PDP11/20, written in assembly language.
There was a memory mapping option KS-11 that sat between the processor and
Unibus that mapped chunks of memory. It was a DEC special, and only about a
dozen were built. See http://cm.bell-labs.com/cm/cs/who/dmr/odd.html
A hardware story'
On Mon, 2 Sep 2002, Dave Horsfall wrote:
> On Sun, 18 Aug 2002, Lars Buitinck wrote:
>
> > we all know that UNIX first ran on the PDP-7 and then on the PDP-11/20,
>
> Just got back from overseas, but this doesn't seem to have been addressed:
> AFAIK, Unix never ran on the 11/20 (no MM unit); did you mean a DEC-20?
Um? Who said Unix used an MMU in the beginning?
No, Unix never ran on a PDP-10. It was PDP-7 and then the PDP-11, and I
believe it was a PDP-11/20 at the beginning.
Johnny
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Larry McVoy:
In response to old hardware... My first machine was an Okidata CPM machine
which had a color (!) monitor and a built in printer. If someone had one
of these, I'd like it just for old time's sake...
Well, my first computer was a Cardiac. I'm glad to say that I managed
to grab one from Classic Computing a few years ago, but I don't think
they have any left. If anyone knows of a source, I'd be interested to
hear about it; every now and then I mention Cardiac to someone who hasn't
heard of it, and they'd like to know where to get one.
I still think Cardiac should be a required tool in freshman programming
courses.
Norman Wilson
Toronto ON
In response to old hardware... My first machine was an Okidata CPM machine
which had a color (!) monitor and a built in printer. If someone had one
of these, I'd like it just for old time's sake...
--
---
Larry McVoy lm at bitmover.comhttp://www.bitmover.com/lm
