🚀 go-pugleaf

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

In article <350.2752352d@inland.com>, allebrandi@inland.com (Tom Allebrandi) writes:
> We have a piece of purchased test equipment that contains a PDP-11/73
> running RT-11. The system uses 5-1/4" floppy disks for removable disk
> storage. The floppies themselves are standard PC/AT style - that is,
> Double Sided High Density.
>	[Stuff deleted] 
> We would like to take data from this machine up to our VAX. The problem
> is that the only link this machine supports is a 1200 Baud no flow
> control printer port. Even worse, the way you talk to that port is to
> tell the software to use it and then print something!
> 	[Stuff deleted]

If the idea is to get the data to your VAX, then what is the possiblility of
using VMS EXCHANGE with an RX50 disk drive? Or am I missing something?

-- 
Jonathan M. Prigot      j_prigot@wrglex or ...!drilex!wrglex!j_prigot

In article <2754ba41.c12@petunia.CalPoly.EDU>,
jdudeck@polyslo.CalPoly.EDU (John R. Dudeck) writes:
> 
> 
> 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.
> 

I wrote a Fortran program to read and write RT-11 5-1/4" floppies on
a UNITY system (UNIX computer with an LSI-11 bus) over 5 years ago.
It also had list and delete commands.  Basically it emulated the PIP
utility on a PDP-11.  If I can find it, I will mail it to anyone interested
(as far as I can remember it's not too long).  I hope I had the good sense
to keep a listing at least!  I'll find out over the next few days.
-- 
Jack N. Churchill                            | E-mail:
CSIRO  Division of Exploration Geoscience    | churchill@decus.com.au
Remote Sensing Group                         | Phone:  +61 2 887 8884
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