Linux - How to find busy device, Locate the busy driver
How to find busy deviceWhen you are trying to unmount a device drive, but it keep saying that your system or drive is busy.
# lsof +D /mnt/drive-name
This will return the command and process ID of any tasks that is currently accessing the /mnt/drive-name directory.
By finding the Process-ID you can either end the process or kill the process to unmount the drive safely.
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