most of the gui file managers will leave devices open by some process.
use the fuser command to determine what process id you can kill to be
able to unmount your device :)
Robert Moskowitz wrote:
> Using the Disk Management GUI.
>
> I mounted the floppy
>
> copied a file to it by dragging from one Nautilus window to another
>
> Then I tried to unmount the floppy and got an error that the device
> (/media/floppy) was busy.
>
> This is not the first time this has happened to me.
>
> And it does not happen all the time. In fact, yesterday I did the
> exact same steps with no problem.
>
>
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