1 Oct
2019
1 Oct
'19
9:25 a.m.
Right. That’s the V6 diff tape. I’m not sure where the story of it coming from Lou comes
from (I’ve never heard that before to be honest). But the source for many of us was Kens
trip to CA and the stop to see Chesson at U of I.
I don’t remember who gave it to us at CMU at the time but like copies of the Lions book
there was an active underground in those days.
Sent from my PDP-7 Running UNIX V0 expect things to be almost but not quite.
On Sep 30, 2019, at 10:54 PM, reed(a)reedmedia.net
wrote:
On Mon, 30 Sep 2019, Warner Losh wrote:
Ok. I know there was never a v6.5... officially. But there are several
references to that in different bits of the early user group news letters.
This refers to v6 plus all the patches that "leaked" out of bell Labs via
udel and Lou Katz.
My question?is,? have they survived? The story sure has, but I didn't find them
in the archive..?
I think these are the same as what went other places too.
See
Archive/Applications/Spencer_Tapes/unsw3.tar.gz
unsw3/usr/sys/v6unix/ directory.
has annotated changes and a diff
(following from my writings...)
In preparation to his year sabbatical, Thompson put together a Unix
system to take. ``Since it was almost a release, I made a `diff' with
V6. On the way to Berkeley, I stopped by Urbana-Champaign ... I left the
`diff' tape there and ... [said] I wouldn't mind it if it got
around.''\cite{salus2008}
At the University of Illinois at Chicago Circle, research assistant Mike
O'Brien got a copy of the single-file diff (from Thompson directly). Its
main purpose was to keep the Bell Labs systems from crashing. O'Brien
went through it, diff by diff, and annotated it so others would have
some idea of what it was what and whether they were
useful.\cite{mikeobrien1}
...
By the end of the summer, Haley and Joy began to explore the kernel
internals. With Schriebman's observance, they installed the fixes
and improvements provided on the ``fifty changes'' tape from Bell Labs.
As they learned to maneuver through the kernel code, they suggested
several small enhancements to streamline certain
bottlenecks.\cite{mckusick85}