restore SD card capacity

  • Thread starter Thread starter Firewalker
  • Start date Start date
Firewalker said:
Sorry for the late response. Thanks for the continued support. This is
getting very complicated to understand now. When I ran dd0 --list, it
returned:

\\?\Device\Harddisk1\Partition0
link to \\?\Device\Harddisk1\DR20
Removable media other than floppy. Block size = 512
size is 1007681536 bytes
\\?\Device\Harddisk1\Partition1
link to \\?\Device\Harddisk1\DP(1)0-0+15
Removable media other than floppy. Block size = 512
size is 1007681536 bytes

I'll do some research on the HPA to see if I could find a potential solution
there.

-Toby
Click to expand...

That means as far as "dd" is concerned (a program that accesses the device
at a raw level), it is finding the size is around 1GB. At the moment, I
don't see much reason to go any further with "dd", because the problem
doesn't appear to be a size coming from the file system itself. The size
must be coming from the hardware. You'd have to contact the manufacturer,
in the hope they have some piece of software to fix it (or perhaps they'll
offer a warranty return as an option).

The design of the SD chip is similar to a USB flash, in that there is a
flash chip and a controller. Which presumably leaves room for the
same capacity changing options that USB sticks have. The protocol would
be different and I haven't a clue what options it might support. On
ATA you have things like SETMAX to mess up storage devices. I don't know
if SD has an equivalent capability or not.

http://en.wikipedia.org/wiki/File:Sdcard_panasonic64mb_inside_front.jpg

Paul
 
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