I recently purchased the Sony dsc-p10 digicam. It comes with a 32MB Memory Card, and
I also picked up the 128MB Memory card. After some googling, I found the following
kernel tweak to recognize the camera as a usb-storage device,
(mod to drivers/usb/storage/unusual_devs.h):
-UNUSUAL_DEV( 0x054c, 0x0010, 0x0106, 0x0422,
+UNUSUAL_DEV( 0x054c, 0x0010, 0x0106, 0x0450,
...
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 entered fdisk's advanced funcionality:
"x extra functionality (experts only)"
A look at the partition table itself didn't tell me much:
Expert command (m for help): p
Disk /dev/sda: 16 heads, 16 sectors, 247 cylinders
Nr AF Hd Sec Cyl Hd Sec Cyl Start Size ID
1 80 2 2 0 15 16 989 33 253407 06
2 00 0 0 0 0 0 0 0 0 00
3 00 0 0 0 0 0 0 0 0 00
4 00 0 0 0 0 0 0 0 0 00
I attempted to "verify the partition table", and discovered an 'issue' with the
cylinder count. What this 'issue' pertains to, I have no idea? :P
Expert command (m for help): v
Partitions 1: cylinder 990 greater than maximum 247
Total allocated sectors 253408 greater than the maximum 63232
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!:
Expert command (m for help): v
32 unallocated sectors
Expert command (m for help): w
The partition table has been altered!
Now the 128MB Memory Card mounts perfectly - and it still works in the camera :P
Hope this helps someone :)
-----Original Message-----
>From: R.E.Coutch [mailto:[EMAIL PROTECTED]
>Sent: Thursday, December 26, 2002 2:57 AM
>To: [EMAIL PROTECTED]
>Subject: [wplug] memory stick - mount prob
>
>
>Hi to everyone - merry Christmas!
>
>I have a small problem with the memory sticks my camera uses. I just
>bought a digital camera Sony DSC-P31, which has a 8MB memory stick by
>default. I bought an extra 64MB stick for more storage space.
>
>These can be read and written from a laptop or desktop just by connecting
>the camera with the provided USB cable, and the stick gets mounted as a
>vfat filesystem. This happened almost automatically with the 8MB stick.
>All I had to do was type mount /mnt/camera and voila - /dev/sda1 qas
>mounted at /mnt/camera, type vfat, everything fine.
>
>But, when I tried the same with the 64MB stick, I got the standard mount
>error message:
>
>mount: wrong fs type, vad option, bad superblock on /dev/sda1 or too many
>mounted filesystems.
>
>I tried all options of mount, but the same message
>appeared after every failed effort in /var/log/messages:
>
>kernel: FAT: bogus logical sector size 65535
>kernel: VFS: Can't find a valid FAT filesystem on dev 08:01
>
>I tried creating a vfat filesystem on the stick from linux, and that made
>the stick mountable, readable and writable by linux, but not by the
>camera...
>
>I tried 3 different (different brands too) 64MB sticks, and they all
>behave the same. Does anyone have any ideas? I might have to return the
>camera if I cannot hook it up to my laptop... Oh, and I tried Mac and
>Windows machines and the sticks were mounting fine.
>
>Any suggestions will be greatly appreciated!
--
Tyler Thiessen
Systems Administrator
Hi-Performance Enterprises Inc.
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