[Lubuntu] How to unmount a camera from the command line?

Phill Whiteside PhillW at Ubuntu.com
Thu Nov 1 23:43:48 UTC 2012

I'd expect USB flash drives to be auto mounted (The screams of "I plugged
my flash drive in & it didn't mount - do not worth thinking about :) )

I'm in no way any expert on this, but IIRC, when I plugged my USB webcam in
a few cycles ago, it launched Cheese and not PCManFM. Things will have
changed and my laptop as of them is no longer, this one has a built in one.
If you have a link to Entangle I'd be happy to install it & see how it gets



On 1 November 2012 23:06, John Hupp <lubuntu at prpcompany.com> wrote:

>  Perhaps it is too eager, I don't know.  It seems like standard behavior
> with removable storage -- it does the same thing with USB flash drives,
> which is also what Windows does.
> It would also be interesting to figure out why Entangle locks up when it
> tries to unmount the camera.
> But in the meantime I'm very eager for a work-around.  I've put in a lot
> of research and testing time on this over the last few weeks, and it
> seems that I'm close to a decent solution with Entangle.  (I like it very
> much when things work the way they should, and I prefer to see the
> "right" solution, but I'll admit to some battle-weariness with confronting
> one issue after another.)
>  On 11/1/2012 6:42 PM, Phill Whiteside wrote:
> Hi John,
>  from what you describe I think PCManFM is being maybe just a little too
> eager to mount anything that arrives in a USB port. As such, I'd suggest
> raising a bug against PCManFM in the first instance, it can always get
> re-allocated once the dev-team have had chance to look into it.
>  Regards,
>  Phill.
> On 1 November 2012 22:36, John Hupp <lubuntu at prpcompany.com> wrote:
>>  I'm trying to get a Canon Powershot G1 USB-connected camera working
>> with remote capture (tethering) using either Entangle or Gtkam.
>> Both apps get tripped up on the fact that Lubuntu auto-mounted the camera.
>> Gtkam simply generates an error message about the camera already being
>> in use.  Entangle notes the same condition and offers to unmount the
>> camera, but approving that causes the program to lock up.
>> Either program launches OK if I manually unmount the camera from pcmanfm
>> first.
>> So I'd like to launch the camera program from a script that first
>> unmounts the camera.
>> Post #2 in http://ubuntuforums.org/showthread.php?t=967104 had a
>> solution in the command "gvfs-mount -s gphoto2," but gvfs-mount is not
>> installed by default in Lubuntu and is not available from the default
>> repos.
>> I also tried "sudo umount /home/<user>/.gvfs," which was the mount point
>> suggested to me by "sudo mount."  That ran without error, but the camera
>> did not seem to be truly unmounted, and both cam apps errored as before.
>> What's my best solution in Lubuntu?
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