Hi there,

On Mon, 29 Dec 2003, Tyler Thiessen wrote:

>  I recently purchased the Sony dsc-p10 digicam. It comes with a 32MB
> Memory Card, and I also picked up the 128MB Memory card.
> ...
> However, I quickly discovered this exact same issue with my memory
> cards - the 32MB worked fine, however the 128MB would fail to mount!:
> $ mount -t auto /dev/sda1 /mnt/camera/
>  mount: wrong fs type, bad option, bad superblock on /dev/sda1,
>        or too many mounted file systems
> 
> The mount attempt would log the same error message: 
>  kernel: FAT: bogus logical sector size 65535
>  kernel: VFS: Can't find a valid FAT filesystem on dev 08:01
> 
> since formatting the card didn't help anything, I began to look at the card more 
> closely with fdisk:
> ...
> I attempted to "verify the partition table", and discovered an 'issue' with the 
> cylinder count.
> ...
> Expert command (m for help): v
> Partitions 1: cylinder 990 greater than maximum 247
> ...
> I then opted to "change number of cylinders" - to re-enforce the 990 cyl count 
> Expert command (m for help): c
> Number of cylinders (1-1048576, default 247): 990
> ...
> I then attempted to "verify the parition table" again, and the previous cylinder 
> count error was gone!:
> ...
> Now the 128MB Memory Card mounts perfectly - and it still works in the camera :P 


This is really useful - have you posted it to the USB development list?


73,
Ged.



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