[NTLUG:Discuss] unformat utility for fat32/fat16/fat12 filesystems

[Daniel Hauck]

Alvin Goats さんは書きました:
> I'm cross posting as I need something fairly quick. Yes, it's "windows", 
> but that's the format the camera uses...
> 
> My youngest accidentally got the Nikon to format the SD card, so all of 
> the pix are lost. I need to unformat the card. Whether it's a utility in 
> Linux or (gasp!) windoze, I need something to recover the pix.
> 
> Thanx,
> 
> Alvin

I have found that cameras format cards in the most destructive and 
unrecoverable way possible.  That may not always be the case, but 
generally, I have found this to be the case.

The first thing I would do is is to get a hex dump of the card (you 
know, doing something like "dd /dev/sdb0 | hexdump -C") and see if you 
can recognize any directory structures or filenames in there.  If you 
see any of that, there's a chance for recovery... of sorts.

In the past, I have observed you will see a LOT of zeros.  If you see 
that, there's just no chance and you can give up there.