[olug] Linux utilities to unformat / unerase / scavange digital camera flash memory cards?

[Rob Townley]

i wonder if ddrescue would be better -- it goes back to sections it could
not read and attempts to reread repeatedly.

The following article documents a script that makes using dd_rescue easier.

http://www.oreillynet.com/sysadmin/blog/2004/07/save_your_data_from_the_click.html

However, djlizard recommends ddrescue over dd_rescue (confusing names)
because the retries and backwards file reading are built-in.

#something like the following would attempt to recover the files
#indefinitely, ctrl-c to stop.
ddrescue /dev/sda /mnt/dadscamera.flash /tmp/sda.log -r -1

The RecoveryIsPossible RipLinux has ddrescue and PhotoRec.

On 12/30/07, Dan Linder <dan at linder.org> wrote:
>
> My dads Olympus digital camera decided to reformat the flash card right
> *AFTER* taking all the Christmas photos.  :-(
>
> I found the "foremost" utility (http://foremost.sourceforge.net/) which
> can analyze drive
> images, but it couldn't find anything. As a test, I used my camera
> phones 64MB flash, and
> it did find the images.
>
> Anyone else have any other suggestions?  I did get a copy of the flash
> image (dd if=/dev/sdd of=flash.backup.dd), and a quick check usin "od"
> showes that it's not just filled with zero's, but the common JPEG
> headers (0xffe1 or 0xffd0) don't show up anywhere...
>
> It's FAT16 so if anyone knows of a FAT16 editor for Linux or Windows I'd
> appreciate the pointer.
>
> Dan
>
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