Chris Walker wrote:
On 04/08/10 17:05, Anthony Anson wrote:
Chris Walker wrote:
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?
ISTR having a similar promble with a Kingston memory stick - it had a separate partition with uselessware in it, and it waas written in a (IIRC) NT format.
Using violent methods under Debian, I deleted the contents of this partition then the partition itself. (It wouldn't go, all in one lump)
After that, the copy worked as per original.
But wouldn't the DD command overwrite everything on the SD card including the partitions?
Strangely, it didn't.
I also tried reformatting it, and it ignored the partition. I think it's because the partition has a different drive address.