I want to know the how to list the unmounted device.
i have tried using carbon api checkForRemovalMedia but currently this api is not supported in Mac.
Is there any way to list or display unmounted devices?
Why do you think "checkForRemovableMedia" is not supported? It's documented in Apple's Developer Documentation, and is part of the NSWorkspace class. Perhaps you need to include this "NSWorkspace" class in your project?