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computers / alt.sys.pdp11 / Re: PDP-11 Level 0 Bootstrap for Sykes Twin Floppy Disk Drive

SubjectAuthor
* PDP-11 Level 0 Bootstrap for Sykes Twin Floppy Disk Drivepdr0663
`* Re: PDP-11 Level 0 Bootstrap for Sykes Twin Floppy Disk DriveBill Gunshannon
 `- Re: PDP-11 Level 0 Bootstrap for Sykes Twin Floppy Disk Drivepdr0663

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PDP-11 Level 0 Bootstrap for Sykes Twin Floppy Disk Drive

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Subject: PDP-11 Level 0 Bootstrap for Sykes Twin Floppy Disk Drive
From: paul@rileyriot.com (pdr0663)
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 by: pdr0663 - Fri, 4 Jun 2021 06:10 UTC

Hi there, I have a twin 8" Sykes floppy drive unit, without any documentation.

I'm after a bootstrap program to read sector zero on the disk and execute it so I can boot from a floppy.

Anyone have any experience?

Paul

Re: PDP-11 Level 0 Bootstrap for Sykes Twin Floppy Disk Drive

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From: bill.gunshannon@gmail.com (Bill Gunshannon)
Newsgroups: alt.sys.pdp11
Subject: Re: PDP-11 Level 0 Bootstrap for Sykes Twin Floppy Disk Drive
Date: Fri, 4 Jun 2021 08:05:52 -0400
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 by: Bill Gunshannon - Fri, 4 Jun 2021 12:05 UTC

On 6/4/21 2:10 AM, pdr0663 wrote:
> Hi there, I have a twin 8" Sykes floppy drive unit, without any documentation.
>
> I'm after a bootstrap program to read sector zero on the disk and execute it so I can boot from a floppy.
>
> Anyone have any experience?
>
> Paul
>

Does it emulate the RX01/RX02?

RX01 bootstrap is available in the RT-11 Pocket Guide.

bill

Re: PDP-11 Level 0 Bootstrap for Sykes Twin Floppy Disk Drive

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Subject: Re: PDP-11 Level 0 Bootstrap for Sykes Twin Floppy Disk Drive
From: paul@rileyriot.com (pdr0663)
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 by: pdr0663 - Wed, 9 Jun 2021 00:21 UTC

On Friday, 4 June 2021 at 10:05:54 pm UTC+10, Bill Gunshannon wrote:
> On 6/4/21 2:10 AM, pdr0663 wrote:
> > Hi there, I have a twin 8" Sykes floppy drive unit, without any documentation.
> >
> > I'm after a bootstrap program to read sector zero on the disk and execute it so I can boot from a floppy.
> >
> > Anyone have any experience?
> >
> > Paul
> >
> Does it emulate the RX01/RX02?
>
> RX01 bootstrap is available in the RT-11 Pocket Guide.
>
> bill
Bill,

Thanks for your reply. I have tried the RX01/RX02 bootstrap without any luck. It has it's own controller card, so may not emulate RX01/RX02. There is a version of Unix for the PDP-11/03 called LSX, and there are separate drivers for the Sykes drive, so I suspect that it's different.

Paul

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