17 Apr
2001
17 Apr
'01
7:14 a.m.
Hi all,
The public access 2.11BSD system is finally back up, at styx.leguin.org.uk.
You might find your account has been deleted, in which case just create a new
one..
(for anyone who didn't see my original mail, styx is a public access 2.11bsd
system on a pdp-11/70 that anyone can create an account on via telnet).
-larne-
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From Markus E Leypold
<leypold(a)informatik.uni-tuebingen.de> Tue Apr 17 21:51:14 2001
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From: Markus E Leypold <leypold(a)informatik.uni-tuebingen.de>
To: helbig(a)Informatik.BA-Stuttgart.DE
Cc: pups(a)minnie.cs.adfa.edu.au
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(message from Wolfgang Helbig on Sun, 15 Apr 2001 19:08:32 +0200
(CEST))
Subject: Re: [pups] V6 and Supnik-simulator
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From: Wolfgang Helbig <helbig(a)Informatik.BA-Stuttgart.DE>
Sender: owner-pups(a)minnie.cs.adfa.edu.au
Hi,
If the following README sounds interesting to you, maybe we can
arrange to put a tar ball of it onto minnie?
I also prepared postscript files of the V6-documentation.
Anyone interested?
Yes, me in example :-). I wonder wether you could give them to dmr to be
placed just at the side of the v7 docs, or wether you could put it
into the archive?
Regards -- Markus
Wolfgang
First README:
UNIX V6 on the Supnik simulator:
--------------------------------
This directory contains tape files for the Supnik simulator and
accompaning README files, which I produced when preparing an OS
course at the Berufsakademie. Further it contains C-sources of two
commands (enblock.c/deblock.c). These commands prepare a tapefile for the
simulator (enblock) and produce a plain file from a simulator
tapefile (deblock).
The Supnik simulator can be obtained from:
ftp://minnie.cs.adfa.edu.au/pub/PDP-11/Sims/Supnik_2.3/sources/
I used the sim_2.3d.tar.gz tar ball.
This directory contains a *.README and *.enb files with the following
basenames:
ctable: A bug in the input table for the C-compiler code generator is fixed.
ctime: Some y2k related changes to V6.
dcheck: Bug fix and enhancement of dcheck.
dist: The V6 distribution tape: dist.README explains how to install
and setup UNIX-V6 with the simulator. The file dist.enb is missing
for copyright and space reasons, you have to prepare it yourself.
(see enb.README).
dotdot: Kernel enhancement: If in a root directoy of a mounted filesystem,
let ".." mean the parent of the mount point, not the root directory.
enb: Conventions and usage of .enb files. Explains how to
prepare tape files for the Supnik simulator and tells you
how to prepare the V6 distribution tape.
ludiv: Derivation of a double word unsigned division algorithm, which is used
in ctime. (no corresponding .enb)
man: The man command, which was missing from the distribution, and some
changes to make V6-nroff output readable on an xterm.
So enb.README and dist.README are the next files you should read.
If you have questions or find bugs or whatever, mail to
helbig(a)informatik.ba-stuttgart.de
Last but not least I thankfully acknowledge the work of the people
who talked SCO into offering the ancient-UNIX source license, who collected
the old distribution tapes and run the PUPS Archive. And of course I thank
Bob Supnik for this great simulator!
Second README:
This directory contains some documentation as found on the UNIX V6
Distribution tape. The files were converted to postscript with
groff and the usage of the V6 ms-macro package. (See the print
shell script)
Assembler: as.ps (*)
Beginners Guide: beg.ps (*)
C-Language Reference: c.ps (***)
C-Tutorial: ctut.ps (**)
ED-Tutorial: ed.ps (*)
Summary of UNIX: hel.ps (*)
Description of the C-IO-Library: iolib.ps ()
Description of the kernel IO/Subsystem: iosys.ps (**)
Some thought about security: secur.ps (*)
Instruction how to install V6 from tape:start.ps (***)
Table of Contents of the Online Manual toc.ps (**)
Overview of UNIX (ACM-paper) unix.ps (***)
YACC - yet another compiler compiler yacc.ps ()
The more stars the more useful for the OS course. Two or more stars
indicate high recommended!
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From the V7-distribution I included "A tour
through the UNIX-C-Compiler"
(ctour.ps), which describes the internal workings
of the said
compiler. The format and meaning of /usr/sources/c/table.s is
particular interesting reading if you want to learn about how a
compiler generates machine code.
The shell script "print" can be used to format the *.ps files.
(on a contemporary UNIX system with groff)
The file tmac.s contains V6-ms macros, which are used by some of
the doc files.
Some of the V6 doc files needed to be adopted to groff to render
acceptable output. But the 25 year old troff sources were amazingly
compatible with groff.
From Markus E Leypold
<leypold(a)informatik.uni-tuebingen.de> Tue Apr 17 21:53:23 2001
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From: Markus E Leypold <leypold(a)informatik.uni-tuebingen.de>
To: iking(a)microsoft.com
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Subject: Re: [pups] Ken_Welsch_v6 and Dennis_v6
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Thread-Topic: [pups] Ken_Welsch_v6 and Dennis_v6
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From: "Ian King" <iking(a)microsoft.com>
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All,
Yes, I saw the "rights" declaration (with a non-zero switch register) on
a real machine (PDP-11/34a with programmer's panel), when I booted Ken's
v6 distribution in single-user mode (there is a specific value you enter
into the register, 173030, as documented in bproc.8; does anyone know
why this value was used?).
I'm not sure why, but I was never able to get Dennis' distribution to
boot in the emulator; as a result, I didn't take the time to copy it
As far as I remember I had the same problem. The bootsector I think is
simply empty (god knows why). I took the bs from another disk -- and
everything was fine.
Regards -- Markus
over to an RK05 (using Warren's excellent tools)
to boot on the 11/34.
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From Edward Brocklesby <ejb(a)leguin.org.uk> Wed
Apr 18 02:06:34 2001
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From: Edward Brocklesby <ejb(a)leguin.org.uk>
Organization: Leguin Network Services
To: pups(a)minnie.cs.adfa.edu.au
Subject: [pups] very strange problems with 2.11BSD tcp/ip stack
Date: Tue, 17 Apr 2001 16:06:34 +0000
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hi,
I've been using the 2.11BSD tcp/ip stack fine for weeks, but now, just when
we move it to a new host, its been very flaky.. I'm not sure if it's a
problem with the configuration of the emulator host system, or the TCP stack
itself.
the problem seems to be with packets arriving and being processed out of
order.. I get this from a ping:
PING 62.242.39.162 (62.242.39.162): 56 data bytes
64 bytes from 62.242.39.162: icmp_seq=2 ttl=255 time=14.427 ms
64 bytes from 62.242.39.162: icmp_seq=3 ttl=255 time=24.571 ms
64 bytes from 62.242.39.162: icmp_seq=0 ttl=255 time=3194.977 ms
64 bytes from 62.242.39.162: icmp_seq=1 ttl=255 time=2207.308 ms
64 bytes from 62.242.39.162: icmp_seq=12 ttl=255 time=14.602 ms
64 bytes from 62.242.39.162: icmp_seq=13 ttl=255 time=24.598 ms
64 bytes from 62.242.39.162: icmp_seq=14 ttl=255 time=14.612 ms
64 bytes from 62.242.39.162: icmp_seq=15 ttl=255 time=24.571 ms
64 bytes from 62.242.39.162: icmp_seq=16 ttl=255 time=14.614 ms
64 bytes from 62.242.39.162: icmp_seq=4 ttl=255 time=12156.845 ms
64 bytes from 62.242.39.162: icmp_seq=5 ttl=255 time=11166.777 ms
64 bytes from 62.242.39.162: icmp_seq=6 ttl=255 time=10176.688 ms
64 bytes from 62.242.39.162: icmp_seq=7 ttl=255 time=9186.604 ms
64 bytes from 62.242.39.162: icmp_seq=8 ttl=255 time=8197.344 ms
64 bytes from 62.242.39.162: icmp_seq=9 ttl=255 time=7206.744 ms
64 bytes from 62.242.39.162: icmp_seq=10 ttl=255 time=6216.641 ms
64 bytes from 62.242.39.162: icmp_seq=11 ttl=255 time=5226.532 ms
but the box i'm pinging from is the host system where the emulator is
located.. so there isn't any possible network problem.
The configuration is, tap0 has the IP 62.242.39.161 on the host, and the
pdp-11 has 62.242.39.162, with netmask 0xfffffff8. Nothing else special has
been done on either side.
on the host, we have this:
freeze% ifconfig xl0
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 195.249.6.94 netmask 0xfffffff8 broadcast 195.249.6.95
inet6 fe80::260:97ff:fe7d:74ac%xl0 prefixlen 64 scopeid 0x1
ether 00:60:97:7d:74:ac
media: 100baseTX <full-duplex> status: active
supported media: autoselect 100baseTX <full-duplex> 100baseTX
10baseT/UTP <full-duplex> 10baseT/UTP 100baseTX <hw-loopback>
freeze% ifconfig tap0
tap0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1532
inet6 fe80::260:97ff:fe7d:74ac%tap0 prefixlen 64 scopeid 0xb
inet 62.242.39.161 netmask 0xfffffffc broadcast 62.242.39.163
ether 00:bd:e7:e0:cc:00
Opened by PID 31257
freeze% netstat -rn
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
default 195.249.6.90 UGSc 2 8355 xl0
62.242.39.160/30 link#11 UC 0 0 tap0 =>
127.0.0.1 127.0.0.1 UH 2 15389 lo0
195.249.6.88/29 link#1 UC 0 0 xl0 =>
and on the pdp-11:
styx% ifconfig qe0
qe0: flags=63<UP,BROADCAST,NOTRAILERS,RUNNING>
inet 62.242.39.162 netmask fffffffc broadcast 62.242.39.163
styx% netstat -rn
Routing tables
Destination Gateway Flags Refs Use Interface
127.0.0.1 127.0.0.1 UH 0 0 lo0
62.242.39.162 127.0.0.1 UH 0 0 lo0
default 62.242.39.161 UG 1 3551 qe0
62.242.39.160 62.242.39.162 U 1 321 qe0
If someone could shed some light on this problem, it'd be much appreciated..
-larne-
19 Apr
19 Apr
9:30 a.m.
Edward Brocklesby <ejb(a)leguin.org.uk> writes:
The public access 2.11BSD system is finally back up,
at styx.leguin.org.uk.
You might find your account has been deleted, in which case just create a new
one..
works well :)
please, could you open access to /usr/src since many files are 640 ?
something like chmod -R o+r /usr/src and maybe
find /usr/src -type d -print | xargs chmod o+x
thanks in advance.
Cyrille.
--
home: mailto:clefevre@poboxes.com UNIX is user-friendly; it's just particular
work: mailto:Cyrille.Lefevre@edf.fr about who it chooses to be friends with.
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From Edward Brocklesby <ejb(a)leguin.org.uk> Thu
Apr 19 15:58:49 2001
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From: Edward Brocklesby <ejb(a)leguin.org.uk>
Organization: Leguin Network Services
To: Cyrille Lefevre <clefevre(a)poboxes.com>om>,
Cyrille Lefevre <clefevre-lists(a)noos.fr>
Subject: Re: [pups] 2.11BSD system
Date: Thu, 19 Apr 2001 06:58:49 +0100
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On Thursday 19 April 2001 4:30 am, Cyrille Lefevre wrote:
please, could you open access to /usr/src since many
files are 640 ?
well.. i can't do that without violating SCO's license. however, i am
working on a program to add people to the src group once they have indicated
they agree to the license.
-larne-
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From Cyrille Lefevre <root(a)gits.dyndns.org> Thu
Apr 19 21:57:42 2001
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From: Cyrille Lefevre <root(a)gits.dyndns.org>
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Subject: Re: [pups] 2.11BSD system
In-Reply-To: <01041906584901.00527(a)klamath.leguin.org.uk> "from Edward
Brocklesby
at Apr 19, 2001 06:58:49 am"
To: Edward Brocklesby <ejb(a)leguin.org.uk>
Date: Thu, 19 Apr 2001 13:57:42 +0200 (CEST)
CC: pups(a)minnie.cs.adfa.edu.au
Reply-To: clefevre(a)poboxes.com
Organization: ACME
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Edward Brocklesby wrote:
> On Thursday 19 April 2001 4:30 am, Cyrille Lefevre wrote:
> please, could you open access to /usr/src since many
files are 640 ?
>
> well.. i can't do that without violating SCO's license. however, i am
> working on a program to add people to the src group once they have indicated
> they agree to the license.
oh! I see. forgot about that.
see you.
Cyrille.
--
home: mailto:clefevre@poboxes.com UNIX is user-friendly; it's just particular
work: mailto:Cyrille.Lefevre@edf.fr about who it chooses to be friends with.
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