Using mv (move) instead of cp (copy) shouldn't overwrite any files on
the card, unless you're moving files /to/ the card. It should simply
replace the first character in the directory entry with a character the
system recognizes f"empty" (I used to know that code, I could probably
look it up), and marks the space the file exists in used as Free in the
FAT. Move doesn't erase anything, it just updates the FAT, I assume mv,
does the same thing. I'm going by his description.
On 6/13/2010 5:25 PM, Ken Waller wrote:
Kenneth Waller
http://www.pentaxphotogallery.com/kennethwaller
----- Original Message ----- From: "P. J. Alling"
<webstertwenty...@gmail.com>
Subject: Re: Memory card image recovery programs
Cards are pseudo FAT formatted, and due to their design constraints
the way riles get erased, (or for that matter the card gets
formatted), unless you go to extraordinary lengths only the directory
structure is changed by either of those operations. The only way the
data will be over written is if more photos are taken, or new
directories are created.
That's what Larry said "overwrote" - I took that to mean new images
were added.
On 6/13/2010 4:38 PM, Ken Waller wrote:
Were the images overwritten or deleted?
My understanding is if they have been over written they can't be
recovered. Could be wrong but that's what I recall.
Kenneth Waller
http://www.pentaxphotogallery.com/kennethwaller
----- Original Message ----- From: "Bran Everseeking"
<bran.everseek...@sasktel.net>
To: <pdml@pdml.net>
Sent: Sunday, June 13, 2010 2:39 AM
Subject: Re: Memory card image recovery programs
On Sat, 12 Jun 2010 10:36:53 -0700
Larry Colen <l...@red4est.com> wrote:
I did something stupd last night and overwrote some files when
copying them off an SD card.
I knew that using mv rather than cp was a bad idea, but I discovered
a failure mode that I hadn't thought of before.
Any recommendations for a program to recover erased files off an sd
card for either mac or linux?
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