Odd problem with terminal

[Chris MacDonald]

On Sat, Sep 4, 2010 at 1:23 PM, Karl Larsen <klarsen1 at gmail.com> wrote:
>     I tried umount and it does "safely remove the USB memory stick",
> but fails to remove the stuff.

Someone else might be able to better-explain the intricacies of
nautilus or whatever mechanism automatically mounts filesystems on
hot-pluggable devices for Ubuntu, but that mechanism creates that
folder (/media/4083-B092). If you "Safely Remove" the device through
Gnome that mechanism will unmount and remove the folder for you
(provided of course that it's not in use).

Because you're unmounting via the command line, the folder will get
left behind (you're circumventing the work done by the mechanism I
mentioned above). Provided your 'umount 4083-B092/' returned
successfully you can safely remove the folder yourself (if umount
returned with an error, removing the directory would give you the same
error you initially posted).

For future reference, simply entering 'mount' (without the folder
name) will print out a list of any mounted filesystems. This was what
I intended to convey, but I think you get the point as the error from
your 'mount 4083-B092/' tells you the folder is being used as a mount
point so it's all the same.

Chris