This repository is an archive of the files from
two tapes that were on loan from Joe Cloutier
and archived by Al Kossow at
https://bitsavers.org/projects/cloutier/

The file usg_pg_issue_3.tar.bz contains the
files extracted from this release.  The manual
is also included as a link in this directory.

The first tape, rp.tap, is the UNIX Program Generic
Issue 3 installation tape.  The instructions
at:

https://www.tuhs.org/Archive/Documentation/TechReports/USG_Library/1017_Setting_Up_UNIX_Issue_Three.pdf

apply to an older release of Program Generic and
are still quite applicable here.  Of note, the
kernel is simply called as

"unix"

rather than

"/unix"

in the bootloader.

The second tape, src.tap, contains four tp
archives comprising the source code for Program
Generic Issue 3.

The contents of /usr/source were extracted from
this second tape by successive reads and conversions
to tar(1) archives on a V7 UNIX system running
in the SimH PDP-11 simulator.  In particular,
the commands

dd if=/dev/rmt0 of=/dev/null bs=20b files=<file_index>
tp xm

Extract the archive into the current directory, given the
directory structure needed is provided.

The directory can then be archived to a second magtape
using

tar cf /dev/rmt1 .

On the host system, this can then finally be extracted
using the rawtap utility:

rawtap -e tm1.tap
tar xf 00001.dat

The remaining contents were extracted from an installed
instance from rp.tap running in SimH's PDP-11 simulator.

- Matt G. (segaloco@protonmail.com)