How to Determine If Removable Media Is Still in Use

1. Become an administrator.
2. Identify the processes that are accessing the media.

   # fuser -u /media

   The –u displays the user of the media.

   For more information, see fuser (1M) .

3. (Optional) Kill the process accessing the media.

   # fuser -u -k /media

   The –k option kills the processes accessing the media.

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   Caution  -  Killing the processes that are accessing the media should only be used in emergency situations.

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4. Verify that the process is gone.

   # pgrep process-ID