14 Apr
2001
14 Apr
'01
9:01 p.m.
Hi,
I'm referring to the Ken_Welsch_v6 description in
http://minnie.cs.adfa.edu.au/TUHS/Archive/PDP-11/Distributions/DETAILS
The Ken Welsch tape differs from the Dennis disks only in the "RESTRICTED
RIGHTS"-
statement that was put into /usr/sys/ken/main.c on October 10th 1975 EDT.
The binaries that depend on this change, were rebuilt (usr/sys/lib1 and the
kernels in /) and thus show the same modification date.
All other files from the Ken Welsch tape bear a timestamp between May 14th 1975
and July 18th 1975.
After installation from the Ken Welsch tape onto a (simulated) RK-disk
the date(1) command displays:
October 10 12:29:51 EDT 1975
(which in Australia is October 11th. That might explain, why the
dates given in the DETAILS file are off by one)
Wolfgang
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From Bill Gunshannon <bill(a)cs.scranton.edu> Sun
Apr 15 01:38:20 2001
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Date: Sat, 14 Apr 2001 11:38:20 -0400 (EDT)
From: Bill Gunshannon <bill(a)cs.scranton.edu>
To: PUPS Mailing List <pups(a)minnie.cs.adfa.edu.au>
Subject: [pups] PDP-11/24 -- BA11-A help needed
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Is there anyone here with experience working on a PDP-11/24 in a BA11-A
box?? I am trying to more mine from a broken BA11-L to a working BA11-A
and I need some help with where one of the cables from the control panel
goes.
Anyone??
bill
--
Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three wolves
bill(a)cs.scranton.edu | and a sheep voting on what's for dinner.
University of Scranton |
Scranton, Pennsylvania | #include <std.disclaimer.h>
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From Ken Wellsch <kwellsch(a)tampabay.rr.com> Sun
Apr 15 03:05:49 2001
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To: Wolfgang Helbig <helbig(a)Informatik.BA-Stuttgart.DE>
CC: pups(a)minnie.cs.adfa.edu.au
Subject: Re: [pups] Ken_Welsch_v6 and Dennis_v6
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I always wondered why when booting the image it did not print the
notice so often displayed with V6. I've not looked at the physical
tape this image was pulled from in many years, but I cannot imagine
the fine folks at the University of Waterloo (where I worked for
many years) would have changed anything. So I would gather from
your detective work that based on dates, this tape just predates
that provided by Dennis Richie by such a short time? I do know
that the physical paper label on the tape was hand written. Not
the typed sort I expected with any sort of (c) notice or anything.
-- Ken
Wolfgang Helbig wrote:
Hi,
I'm referring to the Ken_Welsch_v6 description in
http://minnie.cs.adfa.edu.au/TUHS/Archive/PDP-11/Distributions/DETAILS
The Ken Welsch tape differs from the Dennis disks only in the "RESTRICTED
RIGHTS"-
statement that was put into /usr/sys/ken/main.c on October 10th 1975 EDT.
The binaries that depend on this change, were rebuilt (usr/sys/lib1 and the
kernels in /) and thus show the same modification date.
All other files from the Ken Welsch tape bear a timestamp between May 14th 1975
and July 18th 1975.
After installation from the Ken Welsch tape onto a (simulated) RK-disk
the date(1) command displays:
October 10 12:29:51 EDT 1975
(which in Australia is October 11th. That might explain, why the
dates given in the DETAILS file are off by one)
Wolfgang
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From Wolfgang Helbig
<helbig(a)Informatik.BA-Stuttgart.DE> Sun Apr 15 04:48:45 2001
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Date: Sat, 14 Apr 2001 20:48:45 +0200 (CEST)
From: Wolfgang Helbig <helbig(a)Informatik.BA-Stuttgart.DE>
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To: helbig(a)Informatik.BA-Stuttgart.DE, kwellsch(a)tampabay.rr.com
Subject: Re: [pups] Ken_Welsch_v6 and Dennis_v6
Cc: pups(a)minnie.cs.adfa.edu.au
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I always wondered why when booting the image it did
not print the
notice so often displayed with V6. I've not looked at the physical
tape this image was pulled from in many years, but I cannot imagine
the fine folks at the University of Waterloo (where I worked for
many years) would have changed anything. So I would gather from
your detective work that based on dates, this tape just predates
that provided by Dennis Richie by such a short time? I do know
No, the other way round: The tape you provided is from October 10th
and the disk image provided by Dennis is from July 18th. The
"RESTRICED RIGHT"- remark was put into the kernel on October 10th.
It is on the tape that you provided, it is not on the disk image
from Dennis. But the source code from the Lions book shows this
remark as well.
I don't know who changed main.c on October 10th 1975 (I lived in Israel
at that time)
You see the remark only if you set the switch register on the PDP-11
to a nonzero value befor booting. I installed V6 from the tape
following the setup instructions. With the Supnik simulator, enter
sim > d sr 1
sim > boot rk0
@rkunix
And it will print your rights!
Wolfgang