Apologies if this appears twice - I posted it to the wrong address, having already posted it using the wrong email address!
I've copied one 2GB SD card to another 2GB card using the dd command (having copied it to the hard drive as an intermediate step).
The original card will load up in the desired device - a TomTom sat nav but the second card won't. Is there any way for me to check that the cards are the same?
Also, and I realise that it's a bit OT here (although the TomTom is a linux device!) but does anybody have any ideas what might be wrong with the card?