Re: Multiprocessor Qbus PDP-11

> On Aug 19, 2021, at 7:39 PM, Charles Dickman via cctalk > wrote: > > There are indications in the KDJ11-B processor spec on bitsavers that the > M8190 could be used in a multiprocessor configuration. For example, bit 10 > of the Maintenance Register (17 777 750) is labeled "Multiprocessor S

Re: Ultrix-11

I just installed Ultrix-11 3.1 using the ultrix31.tap file from https://pdp-11.org.ru/files.pl?lang=en which is the location from the comments in Stephen's Machine Room video on YouTube that I think started this thread. It installed just fine, but just like the video, I ran out of space on /usr.

Re: Ultrix-11

On Fri, Aug 20, 2021 at 9:50 AM Peter Allan via cctalk < cctalk@classiccmp.org> wrote: > How can I make a larger /usr partition? Is it possible to do this at > installation time? There did not seem to be an option for this. Can it be > done by using an additional disk? That would seem likely, but

Re: Ultrix-11

On 8/20/21 11:50 AM, Peter Allan via cctalk wrote: I just installed Ultrix-11 3.1 using the ultrix31.tap file from https://pdp-11.org.ru/files.pl?lang=en which is the location from the comments in Stephen's Machine Room video on YouTube that I think started this thread. It installed just fine, b

Re: Ultrix-11

On Fri, Aug 20, 2021 at 11:50 AM Peter Allan via cctalk wrote: > I just installed Ultrix-11 3.1 using the ultrix31.tap file from > https://pdp-11.org.ru/files.pl?lang=en > which is the location from the comments in Stephen's Machine Room video on > YouTube that I think started this thread. > > It

Re: Ultrix-11

Bill; I started this thread by asking what I thought was a simple question about Ultrix-11.  Yes, I am trying to install and learn about this fascinating piece of old software. Some of the folks who have posted know much more about Unix than I do and I am learning and enjoying this. I just t

Re: Ultrix-11

On 8/20/21 12:38 PM, Ethan Dicks via cctalk wrote: On Fri, Aug 20, 2021 at 11:50 AM Peter Allan via cctalk wrote: I just installed Ultrix-11 3.1 using the ultrix31.tap file from https://pdp-11.org.ru/files.pl?lang=en which is the location from the comments in Stephen's Machine Room video on You

Re: Ultrix-11

On 8/20/21 12:53 PM, Douglas Taylor via cctalk wrote: Bill; I started this thread by asking what I thought was a simple question about Ultrix-11.  Yes, I am trying to install and learn about this fascinating piece of old software. Some of the folks who have posted know much more about Unix tha

Re: Ultrix-11

> On Aug 19, 2021, at 4:45 PM, Paul Koning wrote: > > > >> On Aug 19, 2021, at 4:37 PM, John Forecast via cctalk >> wrote: >> >> >>> On Aug 19, 2021, at 9:37 AM, Bill Gunshannon via cctalk >>> wrote: >>> >>> On 8/19/21 12:23 AM, Warner Losh via cctalk wrote: On Wed, Aug 18, 2021

Re: Multiprocessor Qbus PDP-11

Charles Dickman wrote: > There are indications in the KDJ11-B processor spec on bitsavers that > the M8190 could be used in a multiprocessor configuration. For > example, bit 10 of the Maintenance Register (17 777 750) is labeled > "Multiprocessor Slave" and indicates that the bus arbitrator is

Re: Ultrix-11

On Fri, Aug 20, 2021 at 1:14 PM Bill Gunshannon via cctalk wrote: > > http://ftp.fibranet.cat/UnixArchive/Distributions/DEC/Fred-Ultrix3/setup-3.1.txt > > > > I've installed older versions of UNIX where you had to explicitly set > > up disks and partitions (where you _could_ resize partitions). P

Re: Multiprocessor Qbus PDP-11

There were a couple of other PDP-11 multiprocessors that I know of (and used): * C.MMP (eventually 16 PDP-11/40e's in an SMP configuration with a crosspoint switch accessing a large memory).  It ran a capability based OS called Hydra. * CM*  this was a cluster of LSI-11s (as I recall) th

Re: Multiprocessor Qbus PDP-11

> On Aug 20, 2021, at 4:07 PM, Guy Sotomayor via cctalk > wrote: > > There were a couple of other PDP-11 multiprocessors that I know of (and used): > > * C.MMP (eventually 16 PDP-11/40e's in an SMP configuration with a > crosspoint switch accessing a large memory). It ran a capability >

Re: Ultrix-11

The idea of using an RA81 drive as it is bigger sounds like a simple solution, but does it actually give a larger /usr partition? Even though an RD54 drive is not huge, most of it is not taken up by the root partition plus the /usr partition, but is available for use as (on the video at least) /use

Re: Multiprocessor Qbus PDP-11

> On Aug 19, 2021, at 7:39 PM, Charles Dickman via cctalk > wrote: > > There are indications in the KDJ11-B processor spec on bitsavers that the > M8190 could be used in a multiprocessor configuration. For example, bit 10 > of the Maintenance Register (17 777 750) is labeled "Multiprocessor Sl

Re: Multiprocessor Qbus PDP-11

> On Aug 20, 2021, at 4:31 PM, John Forecast via cctalk > wrote: > > See: > > > > > for more info on multi-processor PDP-11s including KDJ11-B’s. > > John. Nice. Intere

Re: Ultrix-11

On Fri, Aug 20, 2021, 2:26 PM Peter Allan via cctalk wrote: > The idea of using an RA81 drive as it is bigger sounds like a simple > solution, but does it actually give a larger /usr partition? Even though an > RD54 drive is not huge, most of it is not taken up by the root partition > plus the /u

Re: Multiprocessor Qbus PDP-11

On Aug 19, 2021, at 4:39 PM, Charles Dickman via cctalk wrote: > > There are indications in the KDJ11-B processor spec on bitsavers that the > M8190 could be used in a multiprocessor configuration. For example, bit 10 > of the Maintenance Register (17 777 750) is labeled "Multiprocessor Slave" >

Re: Ultrix-11

On 8/20/21 4:25 PM, Peter Allan via cctalk wrote: The idea of using an RA81 drive as it is bigger sounds like a simple solution, but does it actually give a larger /usr partition? By default, no. /dev/ra00 46063080152667%/ /dev/ra01 95982849674930%/

Re: Ultrix-11

On Fri, Aug 20, 2021 at 4:30 PM Bill Gunshannon via cctalk < cctalk@classiccmp.org> wrote: > On 8/20/21 4:25 PM, Peter Allan via cctalk wrote: > > The idea of using an RA81 drive as it is bigger sounds like a simple > > solution, but does it actually give a larger /usr partition? > > By default, n

DEC ME11 Memory Expansion on eBay

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Re: Ultrix-11

On 8/20/21 6:45 PM, Warner Losh wrote: On Fri, Aug 20, 2021 at 4:30 PM Bill Gunshannon via cctalk mailto:cctalk@classiccmp.org>> wrote: On 8/20/21 4:25 PM, Peter Allan via cctalk wrote: > The idea of using an RA81 drive as it is bigger sounds like a simple > solution, but does

Re: DEC ME11 Memory Expansion on eBay

I had an 11/15 with one of these, no memory in the main box. Both stolen along with an 8/M Wondering if anyone saw such for sale in the last 5 years.   Private email if so. thanks Jim On 8/20/2021 4:04 PM, Steve Malikoff via cctalk wrote: I just saw there is an ME11 Memory Expansion unit on

Re: DEC ME11 Memory Expansion on eBay

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Archiving otrona attache disks

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Re: Archiving otrona attache disks

On Fri, 20 Aug 2021, Bill Degnan via cctech wrote: Is there a simh for the otrona attache? I have some.disk images created with Dunfield's utility..if not I will try to read them by using the Zorba portable, which is pretty good with varied formats. Bill Otrona is fairly straightforward for fo

Re: Multiprocessor Qbus PDP-11

On Aug 20, 2021, at 1:39 PM, Paul Koning via cctalk wrote: > Interestingly enough, I remember another machine that was also called 11/74; > it existed in the RSTS/E lab in Merrimack (NH). That one wasn't an MP > machine; instead, it was an 11/70 with additional microcode to add the CIS > (str

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