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From: jdudeck@polyslo.CalPoly.EDU (John R. Dudeck)
Newsgroups: comp.org.decus,comp.sys.dec
Subject: Re: Reading RT-11 format 5-1/4 inch disks in a PC/AT
Message-ID: <2754ba41.c12@petunia.CalPoly.EDU>
Date: 29 Nov 90 07:35:29 GMT
References: <350.2752352d@inland.com>
Organization: Cal Poly State Univ,CSC Dept,San Luis Obispo,CA 93407
Lines: 29



In an article allebrandi@inland.com (Tom Allebrandi) wrote:
>Does anyone have a program that will read RT-11 format 5-1/4" disks
>on a PC/AT? I know that such a thing exists because I saw a NetNews
>article about it some time ago. (I don't remember who posted it :-()

I was and still am interested in this problem, but haven't had time to
write such a program.  As far as I know, I have never heard of a program
that runs on the AT that can read the RT11 file format.  It is possible
to read the sectors and to format them, but somebody needs to just write
a file transfer program that knows about the RT11 layout.

Someone else who responded (the one you are referring to, I think)
was contemplating writing a program to do this.  I don't know if he
ever did.  If so, I would love to get a copy.

If your test equipment uses the RX50 format (SS 80 tracks), maybe you
can boot a standard RT11 boot disk from a Micro-PDP11 system, instead
of your special diskettes, and somehow go from there through the serial
port with Kermit.  Or maybe you can read your disks on a MicroPDP11.
Also there is the Pro-350 which might read them (I don't know if the
Pro and the Micro are compatible.  I know I couldn't boot a Micro RT11
floppy in a Pro).

-- 
John Dudeck                                  "If it's Object Oriented then by
jdudeck@Polyslo.CalPoly.Edu                    definition it's A Good Thing".
ESL: 62013975 Tel: 805-545-9549                                 -- D. Stearns