Linux Ask!

Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.

“Device is busy” when umounting

Answer:

Sometimes when you want to unmount a filesystem, error of "Device is busy" will appear.

To solve this:

1. Find out who is using the mount point

# fuser /mnt/cdrom

2. Force to kill it

# fuser -k /mnt/cdrom

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