Re: [TUHS] v7 tar and 2bsd.tar

[Clem Cole <clemc@ccc.com>]

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Glad it's working.   We probably need to create Joy's tarball in the future
with the same file ordering he used and get that the Warren.  The trick is
getting a v6tar that properly works.   Maybe one thing we should do is
write a tp format 'tape' with the v6tar binary on it and get that in the
archives independently.

When V7 came out, there was a way to create v6tar (which I suspect is
somehow part of Joy's image).  The issue is that some of the system calls
changed in small but important ways.   tar was a much better way to move
files around than tp which is why it so quickly became the archive scheme
in the Unix community.

On Tue, Jul 28, 2020 at 9:38 AM Will Senn <will.senn@gmail.com> wrote:

> After much travail, I found a post in some ancient Asian language
> (Japanese) and was reminded of Wolfgang's enblock. I didn't bother to
> translate, but just did the enblock:
>
> gunzip -d 2bsd.tar.gz
> cat 2bsd.tar | enblock > 2bsd.tap
>
> I attached the result, et voila:
> tar xv0
> tar: bin/ - cannot create
> x bin/csh, 40412 bytes, 79 tape blocks
> tar: bin/etc/ - cannot create
> x bin/etc/htmp, 0 bytes, 0 tape blocks
> x bin/etc/install, 81 bytes, 1 tape blocks
>
> The cannot create messages are filthy lies :).
>
> That brought it all back to me - just like when I built tar from tape
> for v6... sheesh, why does it have to be so painfully difficult to
> remember these tricky bits?!
>
> Anyhow, afterward, I went back, did the translation from Japanese to
> English (or google did), and it was good stuff about how to apply
> 2bsd.tar to v6:
>
>
> https://translate.google.com/translate?sl=auto&tl=en&u=https%3A%2F%2Forumin.blogspot.com%2F2014%2F06%2Funix-and-2bsd-on-pdp11simh-2.html
>
> Thanks for the help and patience.
>
> Will
>
> --
> GPG Fingerprint: 68F4 B3BD 1730 555A 4462  7D45 3EAA 5B6D A982 BAAF
>
>

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