22 Feb
2022
22 Feb
'22
10:29 a.m.
I was wondering how well a Greaseweasel would write floppies for my Rainbow. Also, I saw
that someone had images for Venix-86 Rainbow and I was wondering if they would be
interested in sharing them.
Thanks
Ray
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________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Paul Koning via cctalk
<cctalk at classiccmp.org>
Sent: Tuesday, February 22, 2022 1:17:12 PM
To: Joshua Rice <Rice43 at btinternet.com>; cctalk at classiccmp.org <cctalk at
classiccmp.org>
Subject: Re: Installing an operating system on the 11/83 - update.
On Feb 22, 2022, at 12:27 PM, Joshua Rice via cctalk
<cctalk at classiccmp.org> wrote:
I have a generic 5.25? (not sure of brand) in my dell GX1 but it writes plain SSDD
floppies in RX50 format no problem.
The RX33 was a pretty standard PC floppy drive AFAIK, just configured (with jumpers) to
work as an RX33. You may find better milage configuring it as a PC floppy drive, as PUTR
expects to work on PC drives at the device level. Having a real RX33 might be throwing it
off. Don?t take it as gospel, since i?ve not got an RX33 to test it with.
Not sure if PUTR can copy images to a floppy, as i?ve only used it to build a bootable
RT11 disk, and make a few RT11 disks out of the contents of images mounted by PUTR. You
might find it better to work on a blank formatted floppy and build up from there.
I have a utility to go between real floppies and images, it's included with my RSTSFLX
utility. It can deal with interleaving, so (for example) you can have an image file in
logical block order as they usually are, and copy that to a floppy in the correct physical
order. Or you can have an image that's in physical order, as you would use for the
xHomer fork of SIMH.
Look for svn://akdesign.dyndns.org/flx/trunk -- the program I mentioned is rx50.py.
I have no idea if this can be made to work on Windows, but it runs fine on Linux. (I did
once, long ago, write code for DOS -- DJGPP -- to access the PC floppy in the right way to
read/write RX50 format floppies, but while that works fine under Win95 it probably
won't work under WinNT derivatives.)
paul