4 Oct
2021
4 Oct
'21
4:26 p.m.
*Neat*! I was thinking of trying to lay this down on a
real 11/23+ here
at the house, then realized I didn't have two RD51's. Can it gen on an
RD53 by chance, I could upload one of those to a disk in a weekend or
immediately with the Dave Gesswin emulator (which I need to return but
we're just about to pull out those big Perqs)
Chris,
I doubt you'll be able to use anything other than a RD51 drive - as
this ancient V7M doesn't yet support newer drive types. You might
be able to put some of the system files on an RL02 - but I haven't confirmed
there's a RL02 boot loader on this kit.
Back in 1983 the PDP-11/23-PLUS was a relatively *new* machine. There's
later versions of Ultrix-11 (V2 and later) that added support for the 11/73
and bigger drives - look on the Unix Heritage Society site under Unix
Archive. There's a downloadable installation tape for Ultrix-11 there.
https://www.tuhs.org
Tony
--
Tony Nicholson <tony.nicholson at computer.org>
4 Oct
4 Oct
4:42 p.m.
I doubt you'll be able to use anything other than
a RD51 drive - as
this ancient V7M doesn't yet support newer drive types.? You might
be able to put some of the system files on an RL02 - but I haven't confirmed
there's a RL02 boot loader on this kit.
Interesting. Given that it's MSCP it should be just a matter of mapping
out the sectors and such. But to be honest, naah. I have a copy of
Ultrix-11 on 20 or so floppies here, I think I'd just use that on an
RD54 and be done with it.
Oddly enough I do have a copy of Pro/Venix 1.0 that would fit on a
Pro/350 with a 5mb hard drive. Slow as *dirt*, you could literally watch
the hard drive seek back and forth with the little arm on the side. But
it did work. Unfortunately I only have a pair of Pro/380's these days so
I'd have to use Venix 2.0 which is probably less fun :-)
Back in 1983 the PDP-11/23-PLUS was a relatively *new*
machine.? There's
later versions of Ultrix-11 (V2 and later) that added support for the 11/73
and bigger drives - look on the Unix Heritage Society site under Unix
Archive.? There's a downloadable installation tape for Ultrix-11 there.
Speaking of which, has anyone ever written a loader to allow one to copy
a SIMH tape file onto a real tape drive via serial like that pdp11GUI
allows you to load up an RL02/RX02/MSCP drive? I do have a working TK50
and a TK70 (and know how to fix them) and they are pretty nice units.
C
6:47 p.m.
On Mon, Oct 4, 2021 at 7:42 PM Chris Zach via cctalk
<cctalk at classiccmp.org> wrote:
Oddly enough I do have a copy of Pro/Venix 1.0 that
would fit on a
Pro/350 with a 5mb hard drive. Slow as *dirt*, you could literally watch
the hard drive seek back and forth with the little arm on the side. But
it did work.
I have one of those. I brought it to VCF East two years ago for the
Mother of all UNIX Demos. I think there's 300-400KB free on that
RD50.
It is indeed slow as dirt. Also, 'date' only allows for 2-digit
years, so I had to write a utility to accept UNIX epoch time to set
the date past the Y2K boundary.
-ethan
5 Oct
5 Oct
6:04 a.m.
On Oct 4, 2021, at 9:47 PM, Ethan Dicks via cctalk
<cctalk at classiccmp.org> wrote:
On Mon, Oct 4, 2021 at 7:42 PM Chris Zach via cctalk
<cctalk at classiccmp.org> wrote:
I wonder if it supports at least an RD51, since those arrived together with the RD50.
Oddly enough I do have a copy of Pro/Venix 1.0
that would fit on a
Pro/350 with a 5mb hard drive. Slow as *dirt*, you could literally watch
the hard drive seek back and forth with the little arm on the side. But
it did work.
I have one of those. I brought it to VCF East two years ago for the
Mother of all UNIX Demos. I think there's 300-400KB free on that
RD50. It is indeed slow as dirt.
Chances are it would be noticeably faster with an MFM emulator connected.
paul
12:09 p.m.
On Tue, Oct 5, 2021 at 7:04 AM Paul Koning via cctalk <cctalk at classiccmp.org>
wrote:
The initial DEC Rainbow port of Venix did not, though the later Boston
Software Works enhancements did. Venix 2.0R only supported RD50.
My Rainbow certainly is for similar disks.The MFM emulator isn't exactly
speedy, but it's at least a bit faster than the real disks it replaced.
Warner
On Oct 4, 2021, at 9:47 PM, Ethan Dicks via
cctalk <
cctalk at classiccmp.org> wrote:
On Mon, Oct 4, 2021 at 7:42 PM Chris Zach via cctalk
<cctalk at classiccmp.org> wrote:
I wonder if it supports at least an RD51, since those arrived together
with the RD50.
Oddly enough I do have a copy of Pro/Venix 1.0
that would fit on a
Pro/350 with a 5mb hard drive. Slow as *dirt*, you could literally watch
the hard drive seek back and forth with the little arm on the side. But
it did work.
I have one of those. I brought it to VCF East two years ago for the
Mother of all UNIX Demos. I think there's 300-400KB free on that
RD50. It is indeed
slow as dirt.
Chances are it would be noticeably faster with an MFM emulator connected.
2:01 p.m.
I wonder if it supports at least an RD51, since those
arrived together with the RD50.
Yes, it did. Venix 1.0 ran on a RD51 and was a LOT faster. I keep the
RD50 around mostly as a "good god, is this faster than a floppy"
conversation piece.
Chances are it would be noticeably faster with an MFM
emulator connected.
Probably, but I really don't use those. I like spinning media, and as
long as it keeps rolling I'll keep using it.
C
paul
11:57 a.m.
On 10/4/2021 6:26 PM, Tony Nicholson via cctalk wrote:
Once installed, one ought to be able to gen a system for other devices,
at least for an RL01/RL02, but perhaps not for RD series beyond the RD51
without
The drivers ought to be there for RL01, RL02, RK06, RK07, RP02/3/4/5/6,
RM02/3/5, RA60 and RA80/81 and more, according to the installation
manual - you just have to do a sysgen.
Might be good to do the contemplated work under SimH first, of course.
For later RQDX controllers, though, you presumably would need to change
the driver.
JRJ
*Neat*! I was
thinking of trying to lay this down on a real 11/23+ here
at the house, then realized I didn't have two RD51's. Can it gen on an
RD53 by chance, I could upload one of those to a disk in a weekend or
immediately with the Dave Gesswin emulator (which I need to return but
we're just about to pull out those big Perqs)
Chris,
I doubt you'll be able to use anything other than a RD51 drive - as
this ancient V7M doesn't yet support newer drive types. You might
be able to put some of the system files on an RL02 - but I haven't confirmed
there's a RL02 boot loader on this kit.
Back in 1983 the PDP-11/23-PLUS was a relatively *new* machine. There's
later versions of Ultrix-11 (V2 and later) that added support for the 11/73
and bigger drives - look on the Unix Heritage Society site under Unix
Archive. There's a downloadable installation tape for Ultrix-11 there.
https://www.tuhs.org
Tony
1174
days inactive
1175
days old
6 comments
6 participants
participants (6)
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cube1＠charter.net -
cz＠alembic.crystel.com -
ethan.dicks＠gmail.com -
imp＠bsdimp.com -
paulkoning＠comcast.net -
tony.nicholson＠computer.org