downloading jpgs from camera fails.

TreeHugger · 02-17-2008, 09:22 AM

Just got a problem with a new panasonic dmc-lx2.

I filled up the 1GB SD card with photos and downloaded them all first time with gphoto2 to my PC, no problems.

Then I erased all the photos in the camera using the camera facility and carried on taking some more, but I can't download the new photos.

I'm using HAL and my linux 2.6 debian system can't read the card via USB.

This is what I'm seeing in my system messages:

Code:

Feb 17 14:54:04 localhost kernel: usb 4-5.4: new full speed USB device using ehci_hcd and address 8
Feb 17 14:54:04 localhost kernel: usb 4-5.4: configuration #1 chosen from 1 choice
Feb 17 14:54:04 localhost kernel: scsi5 : SCSI emulation for USB Mass Storage devices
Feb 17 14:54:04 localhost kernel: usb-storage: device found at 8
Feb 17 14:54:04 localhost kernel: usb-storage: waiting for device to settle before scanning
Feb 17 14:54:09 localhost kernel: scsi 5:0:0:0: Direct-Access     MATSHITA DMC-LX2          0100 PQ: 0 ANSI: 2
Feb 17 14:54:09 localhost kernel: SCSI device sda: 1953791 512-byte hdwr sectors (1000 MB)
Feb 17 14:54:09 localhost kernel: sda: Write Protect is off
Feb 17 14:54:09 localhost kernel: sda: Mode Sense: 04 00 00 00
Feb 17 14:54:09 localhost kernel: sda: assuming drive cache: write through
Feb 17 14:54:09 localhost kernel: SCSI device sda: 1953791 512-byte hdwr sectors (1000 MB)
Feb 17 14:54:09 localhost kernel: sda: Write Protect is off
Feb 17 14:54:09 localhost kernel: sda: Mode Sense: 04 00 00 00
Feb 17 14:54:09 localhost kernel: sda: assuming drive cache: write through
Feb 17 14:54:09 localhost kernel:  sda: sda1
Feb 17 14:54:09 localhost kernel:  sda: p1 exceeds device capacity
Feb 17 14:54:09 localhost kernel: sd 5:0:0:0: Attached scsi removable disk sda
Feb 17 14:54:09 localhost kernel: usb-storage: device scan complete
Feb 17 14:54:09 localhost kernel: attempt to access beyond end of device
Feb 17 14:54:09 localhost kernel: sda: rw=0, want=1953792, limit=1953791
Feb 17 14:54:09 localhost kernel: Buffer I/O error on device sda1, logical block 1953662

Is there anything I can do? My system seems OK, it's still able to read other SD cards.

tredegar · 02-17-2008, 10:39 AM

Code:

localhost kernel: sda: assuming drive cache: write through
Feb 17 14:54:09 localhost kernel:  sda: sda1
Feb 17 14:54:09 localhost kernel:  sda: p1 exceeds device capacity
  .
  .
  .
Feb 17 14:54:09 localhost kernel: attempt to access beyond end of device
Feb 17 14:54:09 localhost kernel: sda: rw=0, want=1953792, limit=1953791
Feb 17 14:54:09 localhost kernel: Buffer I/O error on device sda1, logical block 1953662

Looks like the card needs repartitioning / reformatting.
Can you read it with another computer?
You probably will be able to recover your pictures with photorec

TreeHugger · 02-17-2008, 01:45 PM

OK, testdisk, great. I know that piece of software.

I managed to recover the photos.

I deleted the partition and reformatted the SD card as a FAT32 dos partition and then it would be fine. However the camera didn't like that and demanded that I let it reformat the card again. So I did, and took a couple more photos, and it's back to square one: I can't download the photos automatically with gphoto2.

I suppose I can retrieve them every time with testdisk photorec, but I get all the old photos as well which takes ages, and of course it would be nice if I could connect to the camera like normal.

What's more likely, that the card is bad or that the Panasonic DMC-LX2 is formatting it badly?

H_TeXMeX_H · 02-17-2008, 02:03 PM

How interesting:

Code:

sda: rw=0, want=1953792, limit=1953791

It's trying to get exactly one byte more than it should. This must be some type of bug. Try to look around for a fix, or e-mail the people at gphoto2 with this info.

tredegar · 02-17-2008, 04:04 PM

Quote:

I managed to recover the photos.

Good

Quote:

I deleted the partition and reformatted the SD card as a FAT32 dos partition and then it would be fine. However the camera didn't like that

Maybe it wants FAT16 ?

Quote:

What's more likely, that the card is bad or that the Panasonic DMC-LX2 is formatting it badly?

I'm not sure. Please try FAT16 (from linux, and then test it, then format it from your camera, and test it again) and tell us what happens.

@H_TeXMeX_H

Quote:

How interesting: ...
It's trying to get exactly one byte more than it should. This must be some type of bug.

Very likely, but is this bug in the camera's formatting, or TreeHugger's version of linux? At the moment, we do not know.