Re: Greetings

2019-05-08 Thread Greg Stark via cctalk
I'm just guessing here but I would suspect this had more to do with the
hardware capabilities of the tape system.

Not all tape drives could just pause to wait for more data then resume. If
the data wasn't being steamed fast enough the tape would have to resync
somehow which could even require rewinding and it's possible that was
either unsupported or just unreliable

On Thu., May 2, 2019, 12:41 p.m. Paul Koning via cctalk, <
cctalk@classiccmp.org> wrote:

>
>
> > On May 2, 2019, at 10:49 AM, Ethan Dicks  wrote:
> >
> > On Thu, May 2, 2019 at 8:13 AM Paul Koning 
> wrote:
> >>> On May 1, 2019, at 10:58 PM, Ethan Dicks 
> wrote:
> >>> I think those were still true for V3.X.  I know we had a problem back
> >>> then with our backups where someone elevated the priority of the Tape
> >>> ACP over the Disk ACP (because it was faster) that left us with months
> >>> of corrupt backups.
> >>
> >> Wow, that reflects very badly on the engineering involved.  Setting
> priorities wrong might cause things not to get done, or to take too long,
> but it cannot ever be an excuse for data corruption.
> >
> > Thinking back 35 years... it was that someone enabled the backup
> > operator account with SETPRI, allowing the operator to elevate the
> > priority of the script.  What I think was happening was that the
> > script was grabbing buffers from the disk before they were filled and
> > slamming them out to tape.  It definitely cut minutes off the backup
> > time, which is why it happened.
> >
> > I'm sure the VMS wizards hadn't expected a user process to run at
> > priority 31 (IIRC) because anyone with SETPRI _surely_ had the wisdom
> > not to elevate above system processes.
> >
> > Definitely a failure to think of ways users could abuse the system.
> >
> > -ethan
>
> More in particular, it is a design failure, relying on timing hacks rather
> than explicitly and correctly passing ownership of data from producer to
> consumer.
>
> paul
>
>


Re: Greetings

2019-05-02 Thread Paul Koning via cctalk



> On May 2, 2019, at 10:49 AM, Ethan Dicks  wrote:
> 
> On Thu, May 2, 2019 at 8:13 AM Paul Koning  wrote:
>>> On May 1, 2019, at 10:58 PM, Ethan Dicks  wrote:
>>> I think those were still true for V3.X.  I know we had a problem back
>>> then with our backups where someone elevated the priority of the Tape
>>> ACP over the Disk ACP (because it was faster) that left us with months
>>> of corrupt backups.
>> 
>> Wow, that reflects very badly on the engineering involved.  Setting 
>> priorities wrong might cause things not to get done, or to take too long, 
>> but it cannot ever be an excuse for data corruption.
> 
> Thinking back 35 years... it was that someone enabled the backup
> operator account with SETPRI, allowing the operator to elevate the
> priority of the script.  What I think was happening was that the
> script was grabbing buffers from the disk before they were filled and
> slamming them out to tape.  It definitely cut minutes off the backup
> time, which is why it happened.
> 
> I'm sure the VMS wizards hadn't expected a user process to run at
> priority 31 (IIRC) because anyone with SETPRI _surely_ had the wisdom
> not to elevate above system processes.
> 
> Definitely a failure to think of ways users could abuse the system.
> 
> -ethan

More in particular, it is a design failure, relying on timing hacks rather than 
explicitly and correctly passing ownership of data from producer to consumer.

paul



Re: Greetings

2019-05-02 Thread Ethan Dicks via cctalk
On Thu, May 2, 2019 at 8:13 AM Paul Koning  wrote:
> > On May 1, 2019, at 10:58 PM, Ethan Dicks  wrote:
> > I think those were still true for V3.X.  I know we had a problem back
> > then with our backups where someone elevated the priority of the Tape
> > ACP over the Disk ACP (because it was faster) that left us with months
> > of corrupt backups.
>
> Wow, that reflects very badly on the engineering involved.  Setting 
> priorities wrong might cause things not to get done, or to take too long, but 
> it cannot ever be an excuse for data corruption.

Thinking back 35 years... it was that someone enabled the backup
operator account with SETPRI, allowing the operator to elevate the
priority of the script.  What I think was happening was that the
script was grabbing buffers from the disk before they were filled and
slamming them out to tape.  It definitely cut minutes off the backup
time, which is why it happened.

I'm sure the VMS wizards hadn't expected a user process to run at
priority 31 (IIRC) because anyone with SETPRI _surely_ had the wisdom
not to elevate above system processes.

Definitely a failure to think of ways users could abuse the system.

-ethan


Re: Greetings

2019-05-02 Thread Paul Koning via cctalk



> On May 1, 2019, at 10:58 PM, Ethan Dicks  wrote:
> 
> On Wed, May 1, 2019 at 7:42 PM Paul Koning via cctalk
>  wrote:
>> ...
>> 9.3 names back then, I'm pretty sure.  File system still in an ACP (separate 
>> process)?  DECnet Phase II ???
> 
> I think those were still true for V3.X.  I know we had a problem back
> then with our backups where someone elevated the priority of the Tape
> ACP over the Disk ACP (because it was faster) that left us with months
> of corrupt backups.
> 
> -ethan

Wow, that reflects very badly on the engineering involved.  Setting priorities 
wrong might cause things not to get done, or to take too long, but it cannot 
ever be an excuse for data corruption.

paul



Re: Greetings

2019-05-01 Thread Ethan Dicks via cctalk
On Wed, May 1, 2019 at 7:42 PM Paul Koning via cctalk
 wrote:
> > On May 1, 2019, at 3:54 PM, Antonio Carlini via cctalk 
> >  wrote:
> >
> > I would expect V1.x to feel distinctly clunky in comparison ... to V4.x and 
> > later.
> >
> > Still a fun exercise though I would think.
>
> I would think so.  I was an occasional VMS user at DEC, and I somehow got 
> myself a spot on an OS Internals course for VMS 1.5.  I wasn't in or near VMS 
> at the time, I don't remember how that came to be.  It was interesting to 
> learn how to add a syscall to the OS.
>
> 9.3 names back then, I'm pretty sure.  File system still in an ACP (separate 
> process)?  DECnet Phase II ???

I think those were still true for V3.X.  I know we had a problem back
then with our backups where someone elevated the priority of the Tape
ACP over the Disk ACP (because it was faster) that left us with months
of corrupt backups.

-ethan


Re: Greetings

2019-05-01 Thread Paul Koning via cctalk



> On May 1, 2019, at 3:54 PM, Antonio Carlini via cctalk 
>  wrote:
> 
> ...
> I would expect V1.x to feel distinctly clunky in comparison ... to V4.x and 
> later.
> 
> Still a fun exercise though I would think.

I would think so.  I was an occasional VMS user at DEC, and I somehow got 
myself a spot on an OS Internals course for VMS 1.5.  I wasn't in or near VMS 
at the time, I don't remember how that came to be.  It was interesting to learn 
how to add a syscall to the OS.

9.3 names back then, I'm pretty sure.  File system still in an ACP (separate 
process)?  DECnet Phase II ???

paul




Re: Greetings

2019-05-01 Thread Ethan Dicks via cctalk
On Wed, May 1, 2019 at 2:54 PM Antonio Carlini via cctalk
 wrote:
> I may have missed some of the thread, so this might be old news ...

We've tossed around the facts from the edges but didn't list them one by one.

> So I think that to use anything pre-V4.0 you need compatibility mode
> support in SIMH. But that seems to be there.

I think that's true.  MicroVMS 4.0 runs on MicroVAXen, which don't
happen to have compatibility mode, so I think it's safe to say that it
was all worked out by then.  I'm pretty sure there was still some
PDP-11 code in the corners of late v3.x.

> I would expect V1.x to feel distinctly clunky in comparison ... to V4.x
> and later.

I would agree (I got started with V3.4 or so, so anything V2.0 or
older is going to feel strange to me, I'm sure).

> Still a fun exercise though I would think.

No doubt.  Definitely a learning experience.

I was just a user for V3.x, then became a System Manager with V4.x
(late 1985 or early 1986), then started doing device drivers in 1988
with the push to add SMP under V5.0, at first driver upgrades, then
later, drivers from scratch.  How many times a day can you crash a
VAX?  Lots.

-ethan


Re: Greetings

2019-05-01 Thread Huw Davies via cctalk



> On 2 May 2019, at 07:47, Eric Smith via cctalk  wrote:
> 
> The VAX 8600 and 8650 were the last VAX models to have PDP-11 compatibility
> mode, so if the purpose of VMS 4.0 was to support the 8600, I would expect
> it to still contain compatibility mode support. VMS versions at least as
> late as 5.2 still supported the 8600. I don't have firsthand experience, as
> the only 8600 I used ran BSD.


I seem to recall that there was a software implementation of compatibility mode 
to allow PDP-11 code to be run on VAX hardware that didn’t have it natively.

At one stage I used to manage a very eclectic mix of VAX systems, including 
11-780, 11-785, 8650, 8700, 8800, 8820, 8840, 6300, 6600, 7740.

Huw Davies   | e-mail: huw.dav...@kerberos.davies.net.au
Melbourne| "If soccer was meant to be played in the
Australia| air, the sky would be painted green" 



Re: Greetings

2019-05-01 Thread Eric Smith via cctalk
On Wed, May 1, 2019 at 1:54 PM Antonio Carlini via cctalk <
cctalk@classiccmp.org> wrote:

> Then (I think) came the VAX 8600 and that needed VMS V4.0. That (I
> think, but I can't find anything to support this right now ...) is when
> the last of the PDP-11 compatibility code was finally removed.
>

The VAX 8600 and 8650 were the last VAX models to have PDP-11 compatibility
mode, so if the purpose of VMS 4.0 was to support the 8600, I would expect
it to still contain compatibility mode support. VMS versions at least as
late as 5.2 still supported the 8600. I don't have firsthand experience, as
the only 8600 I used ran BSD.


Re: Greetings

2019-05-01 Thread Antonio Carlini via cctalk

On 30/04/2019 10:25, Huw Davies via cctalk wrote:


I know later 780s (probably with an upgraded memory controller) supported 64MB 
of memory.

I have used VMS 1.6 and started managing VMS systems around the 2.4 timeframe.

I haven’t looked but does the simh 11/780 also provide PDP-11 compatibility 
mode? You used to run a very large amount of -11 code in VMS 1.x..



I may have missed some of the thread, so this might be old news ...


The VAX-11/780 was followed by the VAX-11/750 and that needed (iirc) VMS 
V2.0.



The VAX-11/730 was next and that needed VMS V3.0.


Then (I think) came the VAX 8600 and that needed VMS V4.0. That (I 
think, but I can't find anything to support this right now ...) is when 
the last of the PDP-11 compatibility code was finally removed.



So I think that to use anything pre-V4.0 you need compatibility mode 
support in SIMH. But that seems to be there.



I've not used anything older than V3.x ... I remember command line 
recall arriving, so I expect that happened in V4.0.



I would expect V1.x to feel distinctly clunky in comparison ... to V4.x 
and later.



Still a fun exercise though I would think.


Antonio


--
Antonio Carlini
anto...@acarlini.com



Re: Greetings

2019-04-30 Thread Huw Davies via cctalk



> On 29 Apr 2019, at 21:47, allison via cctech  wrote:
>> 
> You are limited to what the VAX-11/780 system had for peripherals and
> typically under 8MB ram (it maxed at 16mb).

I know later 780s (probably with an upgraded memory controller) supported 64MB 
of memory.

I have used VMS 1.6 and started managing VMS systems around the 2.4 timeframe.

I haven’t looked but does the simh 11/780 also provide PDP-11 compatibility 
mode? You used to run a very large amount of -11 code in VMS 1.x..

Huw Davies   | e-mail: huw.dav...@kerberos.davies.net.au
Melbourne| "If soccer was meant to be played in the
Australia| air, the sky would be painted green" 



Re: Greetings

2019-04-30 Thread Peter Allan via cctalk
On 4/28/19 3:55 PM, Ray Jewhurst via cctalk wrote:
> I am new to the list and would like to introduce myself. I
> am a computer history buff who especially likes DEC machines.

> I unfortunately don't own any hardware but I use Simh on a daily
> basis. I would like to start off with a question. I see that Bitsavers
> has a copy of VMS 1.5 and wanted to know if anyone got it working
> with the Vax 780 simulator?

> I hope to learn a lot from this group.

Hi Ray, about 18 months ago, I did indeed install VMS 1.5 on a simulated
(with simh) VAX-11/780. It was not particularly difficult, but it did take
a bit more effort than I expected. Here is what I did and the problems that
I came across. I am typing this from memory, so I might have mis-remembered
the odd fact.

The instructions tell you to create a bootable disk from tape using the DSC
utility. However, DSC was something that ran in PDP-11 emulation mode on a
VAX and was discontinued early enough in the evolution of VMS that it was
not present on any of my simulated systems (VMS 4.x, 5.x and 7.3). I needed
to build a VMS 3.0 system in order to complete copying the VMS 1.5 tape to
disk. If you have a simulated PDP-11 system, you might be able to use that
instead.

Building the VMS 3.0 system gave me another problem in that I tried using a
simulated TE16 (Massbus) tape drive to read the VMS 3.0 installation tape.
This should have been fine, but actually I uncovered a bug in simh. Bob
Supnik fixed the bug, but you do need to use an up to date version of simh
to get the bug fix. If you need to use an old version of simh for some
reason, then use a TS (Unibus) tape drive and all should be well.

VMS 1.5 is primitive compared with later versions, but does have historical
interest. Do let me know if you want any further information about my
adventures with VMS 1.5.

Cheers

Peter Allan


Re: Greetings

2019-04-29 Thread Ethan Dicks via cctalk
On Mon, Apr 29, 2019 at 12:44 PM allison via cctech
 wrote:
> On 04/29/2019 11:37 AM, Jon Elson wrote:
> > On 04/29/2019 06:47 AM, allison via cctech wrote:
> >> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote:
> >>> On 4/28/19 6:27 PM, Ray Jewhurst wrote:
>  I already have a Hobbyist License.  I am just interested in
>  experimenting with different OSes and different versions of OSes.
> >>> ACK
> >>>
> >>> I don't know what VAX hardware VMS 1.5 supported, what VAX hardware
> >>> that Simh supports, or what the overlap is between the two.
> >>>
> >> You are limited to what the VAX-11/780 system had for peripherals and
> >> typically under 8MB ram (it maxed at 16mb).
>
> The typical environment during the DEC years '83-93 was a 780 with a
> 4-12mb and dozens of users or more.

We (by that I mean Software Results) had an 11/750 that started out
with 512K of RAM and quickly upgraded to 2MB.  I later bumped it up to
8MB (adding the backplane wire and replacing the memory controller)
and we ran 40+ users on it.

> In 83 that meant 3.2 or later and much of the time was V3.8 or 3.9 till
> maybe 86ish then V4 and soon after V5.

I first encountered VMS in late 1984.  I started off a just a user, so
I don't recall the version, but ISTR we upgraded to either V3.4 or
V3.6.  We stayed there for a while, but the MicroVAX I we got was
upgraded from, MicroVMS 1.0 to MicroVMS 4.0 as fast as that came out.
Eventually we did the upgrade path to 4.0 and beyond, pausing at 4.6
on that machine in part because we had a SI9900 controller (you had to
patch DRDRIVER.EXE to use all the cylinders of a Fuji Eagle) and in
part because we had customers who were still on V4.X.  I put
V5.something on an 11/730 and we used that box to link our product for
newer versions of VMS (after 1988).

When we shut everything down in 1993, we were still running VMS 4.6 on
that 11/750 and never needed to upgrade it past 8MB.  It did have
about 1GB on 4 spindles and 2 controllers.

> The years 83 and 84 I fondly remember V3.6 and later mostly V3.8...

I definitely remember V3.6 but I don't think we were on V3.8 for very
long before moving to V4.0.

> If memory serves V4 was the last that ran in 1meg, V5 pushed that higher
> as a 4 meg system was more common then.

I don't think I ever tried to run V4 in under 4MB (even our MicroVAX I
was maxxed out).  Or MicroVAX II had 9MB (and I think we had that one
on V5.4 for a while before moving to V5.5-1).  I think our VAX 8200
was on V5.4 for product development (COMBOARD for VAXBI) and it had no
less than 8MB (the total amount varied by how many slots we had to
free up by removing 2MB boards.

> However the Qbus uVAX has a RD54[system] and RD52[swap] on
> separate MSCP controllers
> for performance as thats where they bottlenecked when heavy swapping.

That sounds like fun - we never had enough hardware to pull that off.

> All my uVAXen have run from V4.4 [MicroVaxII/GPX] or later and my
> nominal version is 5.4.  Though I have a
> RZ56 with V7.2 on it.   All are physical hardware in the Qbus BA123
> realm and M3100 series.

Cool.  I've powered up the MicroVAX II in recent memory, and the VAX
8200 but I haven't fired up the 11/750 since the company folded.

> Running anything before V3 is painful as it was a build.  Also V1 was
> tied the 780 and that did PDP11 emulation
> mode for a lot of stuff.

Like I said, I started with V3.x so I missed out on the "joy".

> VMS changed a lot from 4.2 to 4.6, long file
> names are one that comes to mind as well as
> phase III and IV DECnet.

Yep.  Lots of changes, most of them improvements.

> That was a long time ago.

It sure was.

-ethan


Re: Greetings

2019-04-29 Thread allison via cctalk
On 04/29/2019 11:37 AM, Jon Elson wrote:
> On 04/29/2019 06:47 AM, allison via cctech wrote:
>> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote:
>>> On 4/28/19 6:27 PM, Ray Jewhurst wrote:
 I already have a Hobbyist License.  I am just interested in
 experimenting with different OSes and different versions of OSes.
>>> ACK
>>>
>>> I don't know what VAX hardware VMS 1.5 supported, what VAX hardware
>>> that Simh supports, or what the overlap is between the two.
>>>
>>> There's a reasonable chance that someone will chime in with experience.
>>>
>>>
>>>
>> You are limited to what the VAX-11/780 system had for peripherals and
>> typically under 8MB ram (it maxed at 16mb).
> Well, for command-line computing (well, this IS the classic computing
> list) you can do a lot.
> Our first 11/780 had half a megabyte of memory.  Friday afternoon one
> memory board went bad, and I pulled it out.  A user group ran a
> gigantic batch job of mechanical analysis over the weekend on 256 K! 
> I was amazed, I really thought it would thrash itself to death on that.
>
> I ran a microVAX-II at home on one meg for years.

The typical environment during the DEC years '83-93 was a 780 with a
4-12mb and dozens of users or more.
In 83 that meant 3.2 or later and much of the time was V3.8 or 3.9 till
maybe 86ish then V4 and soon after V5.
The years 83 and 84 I fondly remember V3.6 and later mostly 3.8 and
often the best available machine was
a PDP-11 [PRINCE] and [VIDEO] as the terminals and printers machines
were running RSTS and phase II DECnet.
Others of memory were MILRAT, REX, and ROYALT and later (1989) my own
work box VIDSYS (uVAXII BA123].

If memory serves V4 was the last that ran in 1meg, V5 pushed that higher
as a 4 meg system was more
common then.  However the Qbus uVAX has a RD54[system] and RD52[swap] on
separate MSCP controllers
for performance as thats where they bottlenecked when heavy swapping.

All my uVAXen have run from V4.4 [MicroVaxII/GPX] or later and my
nominal version is 5.4.  Though I have a
RZ56 with V7.2 on it.   All are physical hardware in the Qbus BA123
realm and M3100 series. 

>
> But, I never experienced VMS before about version 3.4, I think.  I'd
> really hate to run any VMS that didn't have loadable device drivers. 
> Doing the brute force sysgens was so RSX-11 ish.
> I think VMS 1.5 still had a bunch of utilities running in PDP-11
> emulation.
>
> Jon
>
Running anything before V3 is painful as it was a build.  Also V1 was
tied the 780 and that did PDP11 emulation
mode for a lot of stuff.  VMS changed a lot from 4.2 to 4.6, long file
names are one that comes to mind as well as
phase III and IV DECnet.

That was a long time ago.

Allsion



Re: Greetings

2019-04-29 Thread allison via cctalk
On 04/29/2019 09:41 AM, Paul Koning wrote:
>
>> On Apr 29, 2019, at 7:47 AM, allison via cctech  
>> wrote:
>>
>> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote:
>>> On 4/28/19 6:27 PM, Ray Jewhurst wrote:
 I already have a Hobbyist License.  I am just interested in
 experimenting with different OSes and different versions of OSes.
>>> ACK
>>>
>>> I don't know what VAX hardware VMS 1.5 supported, what VAX hardware
>>> that Simh supports, or what the overlap is between the two.
>>>
>>> There's a reasonable chance that someone will chime in with experience.
>>>
>> You are limited to what the VAX-11/780 system had for peripherals and
>> typically under 8MB ram (it maxed at 16mb).
> Does it support MSCP?  If not, RP06 would certainly serve for your disks.
>
>   paul
>
I believe its pre MSCP.  V1.5 is pre 1981 if memory serves.  MSCP I
think was introduced
Qbus systems in the 80s just prior to the MicroVAX.

VAX-11/78-- was introduced in '78 and the next generation was around
1980 with the
730 and 750 for the small systems and the 782 and 785 for the larger ones.


Re: Greetings

2019-04-29 Thread Bill Gunshannon via cctalk
On 4/29/19 12:45 PM, allison via cctech wrote:
> On 04/29/2019 11:37 AM, Jon Elson wrote:
>> On 04/29/2019 06:47 AM, allison via cctech wrote:
>>> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote:
 On 4/28/19 6:27 PM, Ray Jewhurst wrote:
> I already have a Hobbyist License.  I am just interested in
> experimenting with different OSes and different versions of OSes.
 ACK

 I don't know what VAX hardware VMS 1.5 supported, what VAX hardware
 that Simh supports, or what the overlap is between the two.

 There's a reasonable chance that someone will chime in with experience.



>>> You are limited to what the VAX-11/780 system had for peripherals and
>>> typically under 8MB ram (it maxed at 16mb).
>> Well, for command-line computing (well, this IS the classic computing
>> list) you can do a lot.
>> Our first 11/780 had half a megabyte of memory.  Friday afternoon one
>> memory board went bad, and I pulled it out.  A user group ran a
>> gigantic batch job of mechanical analysis over the weekend on 256 K!
>> I was amazed, I really thought it would thrash itself to death on that.
>>
>> I ran a microVAX-II at home on one meg for years.
> 
> The typical environment during the DEC years '83-93 was a 780 with a
> 4-12mb and dozens of users or more.

Unless someone tried to run Ada, then it became a single user system.  :-)

bill



Re: Greetings

2019-04-29 Thread Paul Koning via cctalk



> On Apr 29, 2019, at 7:47 AM, allison via cctech  wrote:
> 
> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote:
>> On 4/28/19 6:27 PM, Ray Jewhurst wrote:
>>> I already have a Hobbyist License.  I am just interested in
>>> experimenting with different OSes and different versions of OSes.
>> 
>> ACK
>> 
>> I don't know what VAX hardware VMS 1.5 supported, what VAX hardware
>> that Simh supports, or what the overlap is between the two.
>> 
>> There's a reasonable chance that someone will chime in with experience.
>> 
> You are limited to what the VAX-11/780 system had for peripherals and
> typically under 8MB ram (it maxed at 16mb).

Does it support MSCP?  If not, RP06 would certainly serve for your disks.

paul



Re: Greetings

2019-04-29 Thread Jon Elson via cctalk

On 04/29/2019 06:47 AM, allison via cctech wrote:

On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote:

On 4/28/19 6:27 PM, Ray Jewhurst wrote:

I already have a Hobbyist License.  I am just interested in
experimenting with different OSes and different versions of OSes.

ACK

I don't know what VAX hardware VMS 1.5 supported, what VAX hardware
that Simh supports, or what the overlap is between the two.

There's a reasonable chance that someone will chime in with experience.




You are limited to what the VAX-11/780 system had for peripherals and
typically under 8MB ram (it maxed at 16mb).
Well, for command-line computing (well, this IS the classic 
computing list) you can do a lot.
Our first 11/780 had half a megabyte of memory.  Friday 
afternoon one memory board went bad, and I pulled it out.  A 
user group ran a gigantic batch job of mechanical analysis 
over the weekend on 256 K!  I was amazed, I really thought 
it would thrash itself to death on that.


I ran a microVAX-II at home on one meg for years.

But, I never experienced VMS before about version 3.4, I 
think.  I'd really hate to run any VMS that didn't have 
loadable device drivers.  Doing the brute force sysgens was 
so RSX-11 ish.
I think VMS 1.5 still had a bunch of utilities running in 
PDP-11 emulation.


Jon



Re: Greetings

2019-04-29 Thread allison via cctalk
On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote:
> On 4/28/19 6:27 PM, Ray Jewhurst wrote:
>> I already have a Hobbyist License.  I am just interested in
>> experimenting with different OSes and different versions of OSes.
>
> ACK
>
> I don't know what VAX hardware VMS 1.5 supported, what VAX hardware
> that Simh supports, or what the overlap is between the two.
>
> There's a reasonable chance that someone will chime in with experience.
>
>
>
You are limited to what the VAX-11/780 system had for peripherals and
typically under 8MB ram (it maxed at 16mb).





Re: Greetings

2019-04-29 Thread Ethan Dicks via cctalk
On Sun, Apr 28, 2019 at 4:55 PM Ray Jewhurst via cctalk
 wrote:
> I am new to the list and would like to introduce myself. I am a computer
> history buff who especially likes DEC machines.

Welcome.  I started working with DEC machines for fun in 1982 and for
money in 1984, so they have a dear place in my heart.

> I see that Bitsavers has a copy of VMS 1.5 and wanted to
> know if anyone got it working with the Vax 780 simulator?

There was some discussion about that on the Simh mailing list a couple
of years back.  The difficulty is that Simh doesn't emulate the
console media closely enough to use them to start the install and
prior to VMS 2.0, the method (tools used, etc) was different.  VAXen
don't boot from tape like a PDP-11, so you have to have an install kit
to match your console medium (RX01 for an 11/780, TU58 for 11/750,
11/730, 11/725, etc)   From the discussion, it seems to be easiest to
install a newer version of VMS (3.0 works, 2.0 does as well, I think)
to unpack the VMS 1.5 files onto a blank disk, then boot that on an
emulated 11/780 and finish the install.

I myself haven't tried the process but the Simh mailing list archives
describe the process in a way that someone with VMS experience can
likely figure it out.  I haven't encountered any step-by-step recipes.

Where the Hobbyist License comes into play is with VMS 5.0 and newer -
you'll need LMF license keys and the Hobbyist Program is a way to get
free keys with a one-year expiration.

-ethan


Re: Greetings

2019-04-28 Thread Grant Taylor via cctalk

On 4/28/19 6:27 PM, Ray Jewhurst wrote:
I already have a Hobbyist License.  I am just interested in 
experimenting with different OSes and different versions of OSes.


ACK

I don't know what VAX hardware VMS 1.5 supported, what VAX hardware that 
Simh supports, or what the overlap is between the two.


There's a reasonable chance that someone will chime in with experience.



--
Grant. . . .
unix || die


Re: Greetings

2019-04-28 Thread Grant Taylor via cctalk

On 4/28/19 3:55 PM, Ray Jewhurst via cctalk wrote:
I am new to the list and would like to introduce myself. I 
am a computer history buff who especially likes DEC machines.


Welcome.

I unfortunately don't own any hardware but I use Simh on a daily 
basis. I would like to start off with a question. I see that Bitsavers 
has a copy of VMS 1.5 and wanted to know if anyone got it working 
with the Vax 780 simulator?


I've not messed with VMS 1.5 on anything.  But I have gotten OpenVMS 7.3 
(memory?) to work in Simh quite happily.


If you join a DECUS (?) user group, you can legally get a hobbyist 
license to run the latest VAX / Alpha OpenVMS on multiple systems for 
free.  Seeing as how easy it is to do, I encourage people to legally 
obtain licenses and download install media (images) from HPE directly.


IMHO the OpenVMS hobbyist program is very nice and we want to keep it 
around.



I hope to learn a lot from this group.


I know I have.  I bet that most people can.



--
Grant. . . .
unix || die


Greetings

2019-04-28 Thread Ray Jewhurst via cctalk
I am new to the list and would like to introduce myself. I am a computer
history buff who especially likes DEC machines. I unfortunately don't own
any hardware but I use Simh on a daily basis. I would like to start off
with a question. I see that Bitsavers has a copy of VMS 1.5 and wanted to
know if anyone got it working with the Vax 780 simulator?
I hope to learn a lot from this group.

Thanks

Ray


Re: Seasons greetings

2015-12-27 Thread Fred Cisin

On 12/24/2015 04:47 PM, Murray McCullough wrote:

To all readers/followers of this website - for those who love


What's the URL for the website?


Happy humbug


--
Grumpy Ol' Fred ci...@xenosoft.com


Re: Seasons greetings

2015-12-27 Thread Mike


On 12/24/2015 04:47 PM, Murray McCullough wrote:
> To all readers/followers of this website - for those who love
> classic/vintage computers - I want to wish all the best of the holiday
> season no matter what your beliefs. In this day of political
> correctness it is simply to acknowledge Mother Nature's transition
> from fall to winter and we should take time from our busy schedules to
> reflect on this 'special' time of the year.
>
> Happy computing!
>
> Murray  :)
Thanks Murry and a Merry CHRIST-mas to you and yours!
Habe a blessed day now On to setting up still in the box Commodore 64
together that I got for CHRIST-mas!


Re: Seasons greetings

2015-12-24 Thread Jason Howe



On Thu, 24 Dec 2015, Murray McCullough wrote:


To all readers/followers of this website - for those who love
classic/vintage computers - I want to wish all the best of the holiday
season no matter what your beliefs. In this day of political
correctness it is simply to acknowledge Mother Nature's transition
from fall to winter and we should take time from our busy schedules to
reflect on this 'special' time of the year.

Happy computing!

Murray  :)



And to you!  Today was a work from home day.  I used the opportunity to 
have my Atari running as an auxillary terminal to do some real work on.


http://archives.smbfc.net/uploads/retrocomupting/atari800/AtariTerminal_sm.jpg

--
Jason

Sent from my Atari 800


Seasons greetings

2015-12-24 Thread Murray McCullough
To all readers/followers of this website - for those who love
classic/vintage computers - I want to wish all the best of the holiday
season no matter what your beliefs. In this day of political
correctness it is simply to acknowledge Mother Nature's transition
from fall to winter and we should take time from our busy schedules to
reflect on this 'special' time of the year.

Happy computing!

Murray  :)