Feb
18
2013

HowTo: force umount a busy device in linux

When you try to umount the regular way, if a device is busy you’ll get the following :

dev:/# umount /dev/sda1
umount2: Device or resource busy
umount: /boot: device is busy

This can be solver very easy by entering this :

dev:/# umount -l /dev/sda1


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