On 2020-11-06, Aharon Robbins <arn...@skeeve.com
> Hello all. I started to play with freebee (the 3B1 emulator yesterday).
> Looking at the install doc sure shot me back in time!
> Anyway, it's not 100% clear how to get a floppy image of the "enhanced"
> diagnostics disk. Has someone already done that who could outline
> the steps? Or better yet, simply mail me the image I can use with
Well -- to search the web, the file in question is part of the
"FOUNDATION" subdirectory of a "3B1-IMAGES-US" -- which I can't tell you
where I downloaded it from -- because I don't remember, and am not sure
whether it is still present or not. But the file name is:
and there is also the standard diag, named:
You boot one or the other of those, format the hard disk, and install a
minimal part of the OS from that. Then you boot that and install the
rest of the foundation set (02of12 through 12of12). If you already have
those, you may have the Enhanced Diag image already.
Hmm ... using strings on the image, I find this at the end
(presumably a file included there)
Enhanced UNIX PC Diagnostic Disk
o Allows multiple partitions to be created when doing hard disk format.
o Entries for larger hard disks in the format table, Maxtor XT1140 and
o Allows the hard disk format to format more than 1024 cylinders
o The loader on this disk is a special loader. It will allow you to boot
from the second hard drive if the machine is upgraded to P5.1. Otherwise
the second drive doesn't even show up as a viable option. You can copy
the loader to the hard disk with:
# /etc/ldrcpy /dev/rfp020 /dev/rfp000
The special verbose loader will boot /unix from drive 0 if no input
is given at the "Enter load device option or Load what program option"
in about 60 seconds. This gives the user the option to boot different
programs but still give the machine a chance to auto-reboot if no
user is available.
Distributed by Lenny Tropiano, ICUS Software Systems, le...@icus.islp.ny.us
Note that I used the final option listed to boot various
diagonistics directly from the hard disk at need.
These images are dd copies of the floppy they represent. I note
from the size that even the std diag is on a 360K floppy, unlike the
That directory contains a few things other than the foundation
set, and a cpio image of the foundation set installed.
01of12a-Std-Diag 04of12 08of12 12of12 foundation.cpio ROOT
01of12b-Enhanced-Diag 05of12 09of12 ATE-1of1 GSSDRV-2of2 TEL-MGR-1of1
02of12 06of12 10of12 COMMPT-1of1 GSSDRV1of2 TIDB-1of1
03of12 07of12 11of12 CURTI-1of1 Notes
Note the "ROOT" directory in here is where I recently extracted
a bunch of information to re-discover the format images for other disk
drives than the ones which the original systems came with. (Most of
that is hiding in /usr/lib/iv.)
> I'd like to get a system installed and up and running. The nostalgia
> is incredible; I had a 3B1 for 5-7 years and spent many (many!) happy
> hours writing code and documentation (for gawk) on it. It was the first
> computer that I owned.
I'm not sure how one installs them into the emulator, but
hopefully you have that info.
> Many thanks,
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