Douglas Taylor dj.taylor4 at comcast.net
Fri Aug 20 11:53:11 CDT 2021


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 tried using the f77 compiler to see how it works.  It is really 
outdated and wouldn't recognize some accepted f77 items.  Even under 
SIMH it is slow!  But the load libraries are there.

There is a plot command in there that will drive a Tek 4014 graphics 
terminal.  Eager to find out how that works.

In the long run I would like to see if it can run on real pdp11 hardware 
and support multiple terminals/users.  Just for fun!


On 8/20/2021 12:24 PM, Bill Gunshannon via cctalk wrote:
> 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, but just like the video, I ran out of space 
>> on /usr.
>> 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 not what a
>> system manager back in the 70's or 80's would expect to need to do,
>> especially as there is a relatively large amount of space left to create
>> /user1.
>> I noted the options for installing software using soft links to other
>> locations. Was that the preferred method when installing additional
>> software?
> That worked for me.
>> Any help would be greatly appreciated.
>> Cheers
>> Peter Allan
> bill

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