How do I forcefully unmount a Linux disk partition? | Linux Today
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How do I forcefully unmount a Linux disk partition?

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Anonymous
Dec 4, 2015

Sometimes you try to unmount a disk partition or mounted CD/DVD disk or device, which is accessed by other users, then you will get an error “umount: /xxx: device is busy”. However, Linux or FreeBSD comes with the fuser command to kill forcefully mounted partition. For example, you can kill all processes accessing the file system mounted at /nas01 using the fuser command.
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