Warner Losh imp at bsdimp.com
Sat Aug 14 15:36:07 CDT 2021

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



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