[Coco] SuperIDE and CF Cards

[Mark Marlette]

Alright I'm starting a list! :)

Kidding aside, easy for some, near impossible for others.....Thus the problem.




________________________________
 From: Frank Pittel <fwp at deepthought.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com> 
Sent: Wednesday, July 10, 2013 7:28 PM
Subject: Re: [Coco] SuperIDE and CF Cards
 

I have to admit I'm finding this to be an interesting thread. Not long after I first got my Side I made backups of the CF card using DD from linux. I put
the CF in a card reader and ran "dd if=<device name of CF card> of=<filename to save to> and 3-4 minutes I had an image of the card. I don't access the
data in the file but it's a good way to make backups and have written that image to CF cards many times. Easy Peasy!!!

The Other Frank


On Wed, Jul 10, 2013 at 05:54:58AM -0700, Mark Marlette wrote:
> 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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