/cd0 held open but no files reported

[Bernt Hansson]

On 2015-04-24 21:12, Gary Aitken wrote:
> I have a situation I'd like some insights on...
>
> running 9.2 release on an AMD 64, X with xfce4
>
> I mounted a CD from root:
>    #mount -t cd9660 /dev/cd0 /cd0
> Accessed some files on the CD using gimp.
> Exited gimp
>
> When I try to umount, I get the message:
>    #umount /cd0
>    umount: unmount of /cd0 failed: Device busy

Just use umount -f /dev/cd0