Arch Linux

Shagbag

Member

Registered: 2006-10-25

Posts: 259

Problems mounting a Camera as USB device [RESOLVED]

Usually, when I plug in my Canon PowerShot Pro 1 to my Archlinux laptop, I get an icon appearing on my desktop.  I just double click on this icon and Nautilus opens up showing the individual photos.

However, I've recently invoked pacman -Syu and now I find there is no such icon registering.

dmesg | tail gives:

[n00b@thinkpad ~]$ dmesg | tail
[drm] Setting GART location based on new memory map
[drm] writeback test succeeded in 1 usecs
usb 2-1: new full speed USB device using uhci_hcd and address 5
usb 2-1: configuration #1 chosen from 1 choice
usb 2-1: USB disconnect, address 5
usb 2-1: new full speed USB device using uhci_hcd and address 6
usb 2-1: configuration #1 chosen from 1 choice
usb 2-1: USB disconnect, address 6
usb 2-1: new full speed USB device using uhci_hcd and address 7
usb 2-1: configuration #1 chosen from 1 choice

How do I mount the camera?

Last edited by Shagbag (2007-10-10 19:48:22)

rayjgu3

Member

From: Chicago IL usa

Registered: 2004-07-04

Posts: 695

Re: Problems mounting a Camera as USB device [RESOLVED]

what /dev/*** gets created when camera plugged in?

then
mount /dev/***  /dir/mnted

that should do it
or run pacman -Syu again the problem may be solved by now if it was a problem
when you -Syu did your updates involve kernel26 or some important lib or something that might require reboot for all updates to initiate
or you may just need to log out & back in

just some thoughts

Pudge

Arch Linux f@h Team Member

Registered: 2006-01-23

Posts: 300

Re: Problems mounting a Camera as USB device [RESOLVED]

Hi Shag;

In a terminal window, type in the following:

$ id username

uid=1000(username) gid=100(users) groups=100(users),90(network),91(video),92(audio),93(optical),94(floppy),95(storage),97(camera),96(scanner)

and see if your user is a member of the "camera" group.  If not, add your user to the camera group, log out, log back in, and see if that fixes it.  I think the camera group is fairly new.

Pudge

Last edited by Pudge (2007-10-09 00:22:32)

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Folding STATS

Shagbag

Member

Registered: 2006-10-25

Posts: 259

Re: Problems mounting a Camera as USB device [RESOLVED]

Thanks for the suggestions guys but neither worked.  Pudge, I was already part of the camera group.  Logging out and logging back in didn't fix it.  Interestingly, when I followed rayjgu3's suggestion I can't see any block device in /dev being created when I plug the camera in.  That suggests to me that this is the problem: no creation of a block device even though the device is recognised by the kernel (result from dmesg | tail).

I'm out of my depth here.  Why would the kernel recognise the device but fail to create a block device for it?

Last edited by Shagbag (2007-10-09 06:15:24)

lang2

Member

Registered: 2006-02-10

Posts: 386

Re: Problems mounting a Camera as USB device [RESOLVED]

Did you try use gthumb to import photos?

Shagbag

Member

Registered: 2006-10-25

Posts: 259

Re: Problems mounting a Camera as USB device [RESOLVED]

Thanks lang2 but the problem appears to be at the kernel level - the kernel detects the USB connection but appears unable to create a block device for it.  Without a block device, it can't be mounted.  If it's not mounted, no application (gthumb or otherwise) can work on it.

At least that's how I see the problem (someone please correct me if my logic is wrong).  I just don't know how to fix it.

lang2

Member

Registered: 2006-02-10

Posts: 386

Re: Problems mounting a Camera as USB device [RESOLVED]

So if you downgrade the kernel it would work?

Linteg

Member

From: Sweden

Registered: 2006-03-11

Posts: 54

Re: Problems mounting a Camera as USB device [RESOLVED]

I must ask if you are really sure that your camera acts as a mass storage device, I have a Canon, and have used a few others (Powershot A70/A350 and EOS Digital 300/350/400) and all of them use PTP and require software such as gphoto2, gthumb or f-spot to import photos.

Shagbag

Member

Registered: 2006-10-25

Posts: 259

Re: Problems mounting a Camera as USB device [RESOLVED]

Ah!  That makes sense.  I've just tried it with gtkam (gphoto2) and it's working (sort of - as my PowerShot Pro 1 is not on the officially supported list).  Thanks for the explanation.