I had no problem expanding disk 177-20.

I did it on a Linux system using wteledisk (which I got from https://github.com/jmechnich/wteledsk.git) using this script:

for d in ~/downloads/decpro_software/ftp.update.uu.se/pub/professional/PRO* ; do
    newname=$(basename $d | tr [A-Z] [a-z])
    mkdir decus/$newname
    cd decus/$newname
    for f in $d/*.lzh ; do
    lha -x $f
    done
    for f in *.td0 ; do
    ~/build/wteledsk/src/wteledsk $f -o`basename $f .td0`.dsk
    done
    cd ../..
done

Here's what the files look like:

$ ls -la build/pos32/decus/pro177/177-20.dsk downloads/decpro_software/ftp.update.uu.se/pub/professional/PRO177/177-20.lzh -rw------- 1 user group 409600 May 16  2020 build/pos32/decus/pro177/177-20.dsk -rw-r--r-- 1 user group 152827 Oct 22  1993 downloads/decpro_software/ftp.update.uu.se/pub/professional/PRO177/177-20.lzh $ md5sum build/pos32/decus/pro177/177-20.dsk downloads/decpro_software/ftp.update.uu.se/pub/professional/PRO177/177-20.lzh
ca88b1d528dab3a5b3c1aaed1dd0f215 build/pos32/decus/pro177/177-20.dsk
fae286c23044d1cac4d412c64afce0f6 downloads/decpro_software/ftp.update.uu.se/pub/professional/PRO177/177-20.lzh

Did you possibly download a corrupted copy of 177-20.lzh?

--Bjoren


On 1/22/2021 11:09 AM, Warner Losh via cctalk wrote:
On Fri, Jan 22, 2021 at 8:32 AM Paul Koning <[email protected]> wrote:


On Jan 21, 2021, at 11:20 PM, Warner Losh <[email protected]> wrote:

Hey Paul...

This is really helpful. I've had to deal with those archives for the
Rainbow stuff I do and have some additional caveats below I thought I'd
share...

Thanks for that information.

Part of my motivation is that I mostly run Mac OS, and after that Linux --
not DOS let alone Windows.  So I was hoping to find a Unix solution which
is what I documented.

dosbox runs on macos :).


Now I have two additional questions.

1. In the PRO177 collection (P/OS 3.2 base system) the image 177-20 which
is the ProSetupV32 disk seems to be bad.  It converts fine, but the
converted file is 160k, not 400k as it should be.  If I pad it out with
zeroes it still doesn't work, even though the data at the start looks
plausible.  Any advice?  Is there a good one somewhere?  Tim Shoppa's copy
has the same issue.

The DEC Robin/VT180 had a format that was 160k long. It's 1 side, 40
tracks, 8 sectors. Though I can't imagine it being valid in context...

Have you tried the copies that are at
https://www.digiater.nl/openvms/decus/vmslt02a/pro/ ?

tar tvf 177-20.lzh
-rw-rw-rw-  0 0      0      245921 Oct 22  1993 177-20.TD0

which suggests a 'normal' size to me...  Though I've not decoded it, and
it's possible the original was corrupt somehow...


2. The Xhomer P/OS image has Pro/DECnet installed, it seems, but it
doesn't work.  I see the floppies (5 of them) but no information on how to
use them.  Any information on Pro/DECnet install and setup anywhere?

pro175 Pro/DECnet came up in my searches. It's also there. There's a
pro175.txt that has:

Following is a list of the manuals you will receive when you
order Media Service Charge Code (EE):
  "PRO/DECnet User's Guide"
  "PRO/DECnet Problem Determination Guide"

Notes: This program is also included on DECUS No. VS0112.

Restrictions: A DECNA module is required to use the NET1 port on the
rear of the system unit.

Documentation available in hardcopy only. Sources not included.

though I wasn't able to find it in the usual places, nor by searching for
AA-V445A-TH which is the document ID number for the first one (I could just
find references to it).

Warner

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