On Sat, Aug 1, 2020, 6:16 AM Clem Cole <clemc@ccc.com> wrote:

Dave those are ANSI tape labels.  Unix does not use them    DEC did although was inconsistent with the use particularly WRT HDR2 records.  Tom Quarles (of spice 3 fame) wrote probably the best version for Unix to deal with them.  I believe I gave a copy but it will be in BSD 4.1 maybe 4.2 compiler syntax. I'll ask him if he ever updated it. Clem

How is that related to ansitar.c?

Warner

On Sat, Aug 1, 2020 at 3:55 AM Dave Horsfall <dave@horsfall.org> wrote:

On Sat, 25 Jul 2020, Warner Losh wrote:

>       Weren't V5/6/7/etc distributed as bootable tapes?  Set the switch
>       register to point to the tape instead of the disk...
>
> Yes. They were. We have V6 and V7 tapes (and a V5 disk image). Likely
> earlier versions likely did too.  What I'd meant was that 2.8BSD is the
> first 2BSD that had a bootable tape.

Ah, my mistake.

I think the loader also read just the first block, so woe betide you if
you used a labelled tape...

If I recall, VOL1, HDR1, etc.

-- Dave

--

Sent from a handheld expect more typos than usual