Another few comments:
I think the name for those tools I mentioned are referred to as 'data
carving'/'file carving' tools.
Also, re: I/O errors with 'dd' - do a 'man dd' and see what
retry/'force'/keep-going-on-errors-encountered options it has - I'm sure
there is one there to tell it to retry xxx times, if no luck, move on to
the next block, etc.
Chris O'Halloran wrote:
dd= if=/dev/hda7 of=/mnt/sda1/wikiimage/wikiimage.dat bs=4k
Damn small linux returns "Input/Output" error