[Coco] SuperIDE and CF Cards

[Mark Marlette]

Aaron,

So noted....Not sure what the issue is then. Common tool was SideWalk, did a compare and not equal. I didn't look at where the difference were. Could very well be the unused partition between NitrOS-9 and HDB-DOS.

I verified that it was not an sIDE issue, found a free alt solution for raw backups.

How do you tell what is used and what is not? Detect LSN0, read gemotry, then scan for a formated HDB-DOS disk beyond that?

Wouldn't it be easier just to save the whole CF???? That way to validate, binary compare of the files???

Regards,

Mark




________________________________
 From: Aaron Wolfe <aawolfe at gmail.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com> 
Sent: Wednesday, July 10, 2013 12:41 AM
Subject: Re: [Coco] SuperIDE and CF Cards
 

On Tue, Jul 9, 2013 at 9:15 AM, Mark Marlette <mmarlette at frontiernet.net> wrote:

> 1. SideWalk DOES NOT create an exact image. Had almost 6million compare errors on a 256MB image. So not sure what it is doing...??? Do not use it otherwise you will have corruption. Aaron will need to address this issue. Sure it has something to do with HDB-DOS and NitrOS-9 partitions on same device.
>

SideWalk *does not* create raw images of a CF card.  It creates a file
containing only the data, i.e. with the "wasted" portions of the
HDBDOS area removed.  These images can then be used in DriveWire, or
written to another CF card.  They cannot be mixed with raw images
created by dd or other tools that do not deal with the half sector use
of the HDBDOS area.  SideWalk *can* read images created by dd and
understand them, but it does not create images that dd will properly
write to a card and they will not be identical (or even close) to the
contents of a raw image.

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