Ultrix-11

[Jay Jaeger]

> On Aug 15, 2021, at 10:08, Bill Gunshannon via cctalk <cctalk at classiccmp.org> wrote:
> 
> On 8/15/21 12:45 AM, Warner Losh via cctalk wrote:
>>> On Sat, Aug 14, 2021 at 2:36 PM Warner Losh <imp at bsdimp.com> wrote:
>>> 
>>> 
>>> On Sat, Aug 14, 2021, 2:08 PM Douglas Taylor <dj.taylor4 at comcast.net>
>>> wrote:
>>> 
>>>> On 8/14/2021 1:54 PM, Warner Losh wrote:
>>>> 
>>>> 
>>>> 
>>>> On Sat, Aug 14, 2021 at 10:19 AM Douglas Taylor via cctalk <
>>>> cctalk at classiccmp.org> wrote:
>>>> 
>>>>> I ran into a YouTube video, that it is 5 years old, titled "Ultrix-11
>>>>> 3.1 on an emulated PDP-11/73" and I found it very interesting.
>>>>> It shows installation of Ultrix-11 under SIMH.  The fellow steps through
>>>>> the installation process and appears to be quite knowable.
>>>>> I wanted to replicate it but couldn't locate the *.tap file used in the
>>>>> video that was an image of the bootable TK50 distribution.
>>>>> Bitsavers and tuhs.org have Ultrix-11 files, but not the bootable tape
>>>>> image.
>>>>> Anyone know where the tape image is located?
>>>>> 
>>>> 
>>>> https://www.tuhs.org/Archive/Distributions/DEC/Ultrix-3.1/
>>>> has ultrix-3.1-bootape.tar.gz and seems to be, at first blush, the boot
>>>> tape (or its files) that you are looking for.
>>>> 
>>>> Warner
>>>> 
>>>> I took a look at that file and don't exactly know what to do with it.  It
>>>> is not a bootable image of a tape, but rather the files that are on that
>>>> tape.  Have to do some more digging.  Its a learning experience.
>>>> 
>>> 
>>> There are several prep programs that take the tape files and make a .tap
>>> file.
>>> 
>> Distributions/DEC/Ultrix-11/Fred-Ultrix3 in the tuhs archive has complete
>> instructions as well as a program to build the ultrix tapes
> 
> It took a day because I wanted to test it but I have a TK50 image that
> works with SIMH.  I did an install on an 11/73 with 3M of memory and
> two RD54's.  Worked fine.  It's been a while since I did any Ultrix-11
> on real or simulated hardware.
> 
> Have no idea how to get this tape to anyone.  It's just shy of 4M. Not
> sure if it could be emailed.  The SIMH ini file is trivially simple but
> I could provide that as well.
> 
> I have nowhere I could put it up for download.  I don't do things like
> Google Drive.  Maybe we need a GITHUB site or something for Ultrix stuff.
> 
> bill
> 

Would presumably be a lot smaller gzip’d?