“device is busy” when trying to remove first CD when install a application in wine that requires more then one CD.
Binary package hint: wine
Try to install a windows application that requires 2 or more CD's to install. The first CD will install just fine but when it ask for the next CD and you try to eject it you will receive an error. If you try to manually unmount it you will get "umount: /media/cdrom0: device is busy"