Ultrix-11

[Warner Losh]

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

Warner


> Warner
>
>>