DEC (Minc 11?) RX01 disks and PUTR

From: Don Maslin <donm_at_cts.com>
Date: Fri Apr 20 18:52:18 2001

On Fri, 20 Apr 2001, ajp166 wrote:

> From: Don Maslin <donm_at_cts.com>
> > I have been asked to see if I can transfer the contents of some 8"
> > disks to PC compatible disks. A CP/M disk has offered no challenge,
> > but I am stopped dead on a disk whose label indicates that it was
> > for use on a DEC Minc 11.
>
>
> Are you sure they are RX01 (single density) and not RX02 (double density
> but m2fm)?

As I see it now, they must be!
                                                 - don

> The latter is not readable on anything nonDEC compatable.
>
> > Using AnaDisk, I am able to determine that there are 26x128 byte
> > sectors per track, but with a data error message for each sector.
> > Considering some of DEC's strange format characteristics I am not
> > too surprised that AnaDisk has a problem with it. But PUTR's
> > problems do surprise me. Another disk gives exactly the same result.
> > It is certainly possible that the disk is simply bad, but could there
> > possibly be some other operating system format that is also 26x128
> > but does not respond to PUTR and the options that I have tried.
>
>
> the RX02 has SD header and DD data, NONE of the IC controllers can
> read that.
>
> > Thanks for any hints that you can offer.
>
> find a PDP-11 (MIC-11 is a PDP11 with lab interfaces).
>
> Allison
>
>
>
>
Received on Fri Apr 20 2001 - 18:52:18 BST

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