Can't mount mass storage digital camera [SOLVED]

mico · 2013-08-05 20:46:56

I can't mount a digital camera that I have had for at least a year. In the past it worked without issues but now it has been a while since I have used it and I have reinstalled Arch in the meanwhile. Anyway, I have tried with another camera (I have two same cameras available) and another USB cable, so I ruled out hardware issue.

The camera doesn't show up when I plug it. Mounting other mass storage devices works fine, I see them in /dev and Thunar also picks them up immediately and I can easily mount them.

After I plug in the camera:

$ dmesg
...
[ 1421.713290] usb 1-1: new high-speed USB device number 8 using ehci-pci
[ 1421.838800] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 1421.838842] usb-storage 1-1:1.0: Quirks match for vid 04da pid 2372: 90
[ 1421.838875] scsi11 : usb-storage 1-1:1.0
[ 1422.840810] scsi 11:0:0:0: Direct-Access     MATSHITA DMC-TZ20         0110 PQ: 0 ANSI: 2
[ 1422.842298] sd 11:0:0:0: [sdb] Adjusting the sector count from its reported value: 15523840
[ 1422.842307] sd 11:0:0:0: [sdb] 15523839 512-byte logical blocks: (7.94 GB/7.40 GiB)
[ 1422.843339] sd 11:0:0:0: [sdb] Write Protect is on
[ 1422.843345] sd 11:0:0:0: [sdb] Mode Sense: 04 00 80 00
[ 1422.844189] sd 11:0:0:0: [sdb] No Caching mode page present
[ 1422.844195] sd 11:0:0:0: [sdb] Assuming drive cache: write through

$ ls /dev/sdb*
ls: cannot access /dev/sdb*: No such file or directory

Then after I unplug the camera:

$ dmesg
...
[ 1453.463237] usb 1-1: reset high-speed USB device number 8 using ehci-pci
[ 1460.928205] usb 1-1: USB disconnect, device number 8
[ 1460.936837] sd 11:0:0:0: [sdb] Attached SCSI removable disk

Last edited by mico (2013-08-15 07:03:25)

2ManyDogs · 2013-08-05 22:21:36

Can you mount the device manually? What is the output of "lsblk" or "sudo fdisk -l" after you plug in the camera?

karol · 2013-08-05 22:28:40

https://bugs.archlinux.org/task/36296 ?
No idea why would other hardware work.

mico · 2013-08-06 07:11:06

There is no device file I could even try to mount. There is no /dev/sd* other than /dev/sda* which is my hard disk.

lsblk shows sda and its partitions, and sr0 which is dvd drive.

fdisk -l shows only sda* and its partitions.

Now after a really long time after I plugged in the camera (at least few minutes) I got /dev/sdb and /dev/sdb1 which were shown also by lsblk. However, fdisk -l froze when I run it then and returned only after I unplugged the camera.
This happened only once. In all other attempts I didn't get sdb even after some time.

And yes, it might be caused by the kernel bug reported in #36296, although the camera has USB 2 interface, not USB 3.

bhrgunatha · 2013-08-08 05:16:31

Perhaps it's related to the problem in this other post

mico · 2013-08-15 07:03:11

With the new kernel it works again.

Arch Linux

#1 2013-08-05 20:46:56

Can't mount mass storage digital camera [SOLVED]

#2 2013-08-05 22:21:36

Re: Can't mount mass storage digital camera [SOLVED]

#3 2013-08-05 22:28:40

Re: Can't mount mass storage digital camera [SOLVED]

#4 2013-08-06 07:11:06

Re: Can't mount mass storage digital camera [SOLVED]

#5 2013-08-08 05:16:31

Re: Can't mount mass storage digital camera [SOLVED]

#6 2013-08-15 07:03:11

Re: Can't mount mass storage digital camera [SOLVED]

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