From: <ron@ronnatalie.com>
To: "'Richard Salz'" <rich.salz@gmail.com>, "'Clem Cole'" <clemc@ccc.com>
Cc: 'The Eunuchs Hysterical Society' <tuhs@tuhs.org>
Subject: Re: [TUHS] PWB vs Unix/TS
Date: Wed, 11 Sep 2019 13:52:28 -0400 [thread overview]
Message-ID: <009e01d568c9$afd2ca40$0f785ec0$@ronnatalie.com> (raw)
In-Reply-To: <CAFH29tqpO_BScoaQ528aw-J4dp2JgDwOJvkccK24qTrFLmkHYw@mail.gmail.com>
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The Pyramid OS used “conditional symlinks” if I recalled to implement switching the bin directories.
The UCLA LOCUS/IBM Transparent Computing Facility switched versions of executables by using a “magic” directory that was conditional on the cpu type.
From: TUHS <tuhs-bounces@minnie.tuhs.org> On Behalf Of Richard Salz
Sent: Wednesday, September 11, 2019 1:49 PM
To: Clem Cole <clemc@ccc.com>
Cc: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: Re: [TUHS] PWB vs Unix/TS
> course, this caused a new set of problems of trying to do bug fixes in the two command streams [BTW: Pyramid would try the Universe trick also as did a couple of other folks; but I don't know how they implemented it - as I say, I did it with CDSL].
Yes, /bin was a CDSL to /.attbin or /.ucbbin depending on a flag in the proc structure. The "universe" command queried/set the bit. The Pyramid kernel was a BSD kernel with the missing ATT syscalls added. The boot mechanism, at least at first, was BSD. I did things like "rm -rf" /.attbin, /usr/.attinclude, etc., and the system was fine. :)
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next prev parent reply other threads:[~2019-09-11 17:52 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-09 6:25 Warner Losh
2019-09-09 6:36 ` arnold
2019-09-10 15:16 ` Clem Cole
2019-09-11 0:28 ` Steve Johnson
2019-09-11 3:53 ` Warner Losh
2019-09-11 15:36 ` Clem Cole
2019-09-11 16:55 ` [TUHS] IBM Unix source licenses [was " Charles H Sauer
2019-09-12 19:31 ` Kevin Bowling
2019-09-12 20:59 ` Clem Cole
2019-09-12 21:09 ` [TUHS] IBM Unix source licenses - Series/1 NUXI Ronald Natalie
2019-09-12 21:31 ` [TUHS] IBM Unix source licenses [was Re: PWB vs Unix/TS Warner Losh
2019-09-12 22:30 ` jcs
2019-09-12 23:12 ` reed
2019-09-12 23:22 ` jcs
2019-09-12 23:29 ` [TUHS] IBM Unix source licenses Warren Toomey
2019-09-13 7:06 ` arnold
2019-09-13 8:30 ` SPC
2019-09-14 18:29 ` Warner Losh
2019-09-12 21:29 ` [TUHS] IBM Unix source licenses [was Re: PWB vs Unix/TS Charles H Sauer
2019-09-11 17:49 ` [TUHS] " Richard Salz
2019-09-11 17:52 ` ron [this message]
2019-09-11 21:44 ` Clem Cole
2019-09-11 18:11 ` Larry McVoy
2019-09-11 18:18 ` Richard Salz
2019-09-11 18:54 ` Larry McVoy
2019-09-11 21:05 ` Steve Johnson
2019-09-11 21:34 ` Steve Johnson
2019-09-11 21:57 ` Clem Cole
2019-09-11 22:50 ` Arthur Krewat
2019-09-11 21:59 ` Clem Cole
2019-09-11 21:50 ` Clem Cole
2019-09-11 22:49 ` Dave Horsfall
2019-09-12 3:43 ` [TUHS] SCCS Larry McVoy
2019-09-12 4:20 ` George Michaelson
2019-09-12 4:31 ` [TUHS] [SPAM] SCCS Larry McVoy
2019-09-12 13:44 ` Tony Finch
2019-09-13 4:11 ` Larry McVoy
2019-09-13 5:54 ` Dave Horsfall
2019-09-13 8:00 ` Peter Jeremy
2019-09-13 15:23 ` Larry McVoy
2019-09-13 21:36 ` Dave Horsfall
2019-09-12 4:28 ` [TUHS] SCCS Jon Forrest
2019-09-12 4:33 ` Larry McVoy
2019-09-12 6:12 ` William Corcoran
2019-09-12 14:35 ` Clem Cole
2019-09-13 5:22 ` Dave Horsfall
2019-09-13 5:50 ` Bakul Shah
2019-09-12 16:45 ` Eric Allman
2019-09-12 17:29 ` Clem Cole
2019-09-12 17:47 ` Warner Losh
2019-09-13 8:12 ` emanuel stiebler
2019-09-13 21:11 ` Steffen Nurpmeso
2019-09-13 21:17 ` Larry McVoy
2019-09-13 21:48 ` Bakul Shah
2019-09-13 23:12 ` Steffen Nurpmeso
2019-09-13 23:03 ` Steffen Nurpmeso
2019-09-14 1:55 ` [TUHS] [SPAM] SCCS Larry McVoy
2019-09-16 17:23 ` [TUHS] SCCS Steffen Nurpmeso
2019-09-16 20:31 ` Larry McVoy
2019-09-17 17:57 ` Steffen Nurpmeso
2019-09-18 8:48 ` Eric Allman
2019-09-18 17:33 ` Steffen Nurpmeso
2019-09-12 20:07 ` Nemo
2019-09-11 16:05 ` [TUHS] PWB vs Unix/TS Paul Winalski
2019-09-11 17:14 ` ron
2019-09-14 0:44 ` [TUHS] a book (was Re: PWB vs Unix/TS) reed
2019-09-14 2:53 ` Warner Losh
2019-09-15 2:18 ` Jon Steinhart
2019-09-15 2:39 ` Clem Cole
2019-09-15 3:24 ` Adam Thornton
2019-09-14 22:46 ` Clem cole
2019-09-15 0:58 ` Adam Thornton
2019-09-15 3:30 ` Eric Allman
2019-09-15 4:21 ` Larry McVoy
2019-09-15 5:17 ` Jon Steinhart
2019-09-15 20:14 ` Clem Cole
2019-09-15 20:21 ` Jon Steinhart
2019-09-15 20:12 ` Clem Cole
2019-09-15 21:28 ` Dave Horsfall
2019-09-15 23:27 ` Clem cole
2019-09-15 23:45 ` Richard Salz
2019-09-15 7:43 ` Andy Kosela
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