19 Sep
2020
19 Sep
'20
9:28 p.m.
From: Paul Riley
Is LSX the only option on the 11/03, or could I run V6
or Mini-Unix with
more RAM?
All PDP-11 Unix versions from V4 on require the MMU, so the -11/03 is out for
them. We don't have the code for V2-V4, though. So V1 (mostly all assembler,
no C :-), LSW and Mini-Unix are the only options for it.
V6 can be run on an -11/23 (I've done it), but not straight out of the box;
it requires a few minor tweaks first:
http://gunkies.org/wiki/Running_UNIX_V6_on_an_-11/23
Noel
21 Sep
21 Sep
4:26 p.m.
New subject: Fwd: Choice of Unix for 11/03 and 11/23+ Systems
Noel,
In the bootable images archive, there's the "Unknown V6" RL02 image.
I've
tried that on SimH configured as an 11/23+ with 256kB of RAM and it seems
to work fine. It seems to be somewhat tweaked, as the shell accepts "cd"
instead of "chdir" and I know the C compiler is happy with either "+="
or
"=+". It seems to be reasonably complete (at least binaries I mean). I
can't recall if the source files are there or not.
I guess at least if I use LSX and V6 then they both are V6 based, which
might minimize pain. I'd imagine stuff I write for the '23 would also then
compile on the '03.
I'll have some fun eventually on these machines with my home automation
system. I've picked-up an RS-232 -> WiFi module on TaoBao (China's answer
to eBay) and I'll implement a super-lightweight MQTT system to drive some
stuff at home. (Think custom Christmas lights.) I would assume that
Ethernet boards are available, but not supported on V6.
Anyone else have an LSI machine at home? I'd be interested to know some fun
stuff to do with it.
Paul
*Paul Riley*
On Sat, 19 Sep 2020 at 23:28, Noel Chiappa <jnc(a)mercury.lcs.mit.edu> wrote:
From: Paul
Riley
Is LSX the only option on the 11/03, or could I
run V6 or Mini-Unix
with
more RAM?
All PDP-11 Unix versions from V4 on require the MMU, so the -11/03 is out
for
them. We don't have the code for V2-V4, though. So V1 (mostly all
assembler,
no C :-), LSW and Mini-Unix are the only options for it.
V6 can be run on an -11/23 (I've done it), but not straight out of the box;
it requires a few minor tweaks first:
http://gunkies.org/wiki/Running_UNIX_V6_on_an_-11/23
Noel
24 Jan
24 Jan
10:07 p.m.
New subject: Fwd: Choice of Unix for 11/03 and 11/23+ Systems
Noel Chiappa <jnc(a)mercury.lcs.mit.edu> writes:
V6 can be run on an -11/23 (I've done it), but
not straight out of the box;
it requires a few minor tweaks first:
http://gunkies.org/wiki/Running_UNIX_V6_on_an_-11/23
Noel,
here's a huge THANK YOU! from me - I've had a couple of uPDP-11/23+
systems stowed away for over twenty years, with an eye to one day
porting V6 to them, and this comment from you finally made me pull out
one of them and do it. I now have V6 running on the physical hardware,
booting from an RD52 on an RQDX3 MSCP controller, and announcing 488KW
of available RAM at boot.
Here's the write-up: https://www.hamartun.priv.no/v6unix.html
I am *so* looking forward to continuing work on this system (it's just
barely running, since a couple of days ago), and your web page about
improving V6 will certainly be my launch pad for the next rounds.
-tih
--
Most people who graduate with CS degrees don't understand the significance
of Lisp. Lisp is the most important idea in computer science. --Alan Kay
25 Jan
25 Jan
10:58 a.m.
New subject: Fwd: Choice of Unix for 11/03 and 11/23+ Systems
Hello!
You mention having gotten the Shoppe collection of images up on Simh.
Now I worked out how to bring up the boot disk that way without any
problem. But, ah, never did figure out how to bring up the user disks
in the collection. When you have the time, can you provide me with
some information on how you did all of that?
-----
Gregg C Levine gregg.drwho8(a)gmail.com
"This signature fought the Time Wars, time and again."
On Sun, Jan 24, 2021 at 11:17 AM Tom Ivar Helbekkmo via TUHS
<tuhs(a)minnie.tuhs.org> wrote:
Noel Chiappa <jnc(a)mercury.lcs.mit.edu> writes:
V6 can be run on an -11/23 (I've done it),
but not straight out of the box;
it requires a few minor tweaks first:
http://gunkies.org/wiki/Running_UNIX_V6_on_an_-11/23
Noel,
here's a huge THANK YOU! from me - I've had a couple of uPDP-11/23+
systems stowed away for over twenty years, with an eye to one day
porting V6 to them, and this comment from you finally made me pull out
one of them and do it. I now have V6 running on the physical hardware,
booting from an RD52 on an RQDX3 MSCP controller, and announcing 488KW
of available RAM at boot.
Here's the write-up: https://www.hamartun.priv.no/v6unix.html
I am *so* looking forward to continuing work on this system (it's just
barely running, since a couple of days ago), and your web page about
improving V6 will certainly be my launch pad for the next rounds.
-tih
--
Most people who graduate with CS degrees don't understand the significance
of Lisp. Lisp is the most important idea in computer science. --Alan Kay
2:21 p.m.
New subject: Fwd: Choice of Unix for 11/03 and 11/23+ Systems
Gregg Levine <gregg.drwho8(a)gmail.com> writes:
But, ah, never did figure out how to bring up the user
disks in the
collection. When you have the time, can you provide me with some
information on how you did all of that?
To mount additional disks, just attach them (in simh) and mount them (in
the OS). Sort of like this (from memory, hopefully right):
$ pdp11
simh> set cpu 11/23+
simh> set rl0 rl02
simh> attach rl0 unix_v6.rl02
simh> deposit system sr 173030
simh> boot rl0
!unix
# STTY -LCASE
# ^E
simh> set rl1 rl02
simh> attach rl1 user01.rl02
simh> continue
# mount /dev/rl1 /mnt
-tih
--
Most people who graduate with CS degrees don't understand the significance
of Lisp. Lisp is the most important idea in computer science. --Alan Kay
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4 comments
4 participants
participants (4)
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Gregg Levine -
jnc＠mercury.lcs.mit.edu -
Paul Riley -
Tom Ivar Helbekkmo