Stale mount on disconnected device: how to delete it?

[Sergey Babkin]

>
>On Mon, Dec 17, 2007 at 03:07:02AM -0800, Yuri wrote :
>> I had USB camera connected and recognized as umass0 and mounted as /mnt/camera
>> on /dev/da0s1.
>> 
>> Camera was disconnected while it was still mounted.
>
>Personal recipe when this kind of things happens (generally caused by a
>camera switching to power-save mode or that runs out of battery):

Would not umount -f do the trick?

-SB