FreeBSD: Forcefully unmount a disk partition to get rid of device busy error
Posted by Vivek Gite
[Last updated: August 28, 2006]
Under FreeBSD if you get error device busy while unmounting file system then you can forcefully unmount a disk partition or mount point. You can pass -f option to mount command. It forces the read/write mount of an unclean file system. Suppose you would like to unmount /cdrom forcefully then type command (login as a root user use su or sudo command):
# umount -f /cdrom
Where,
- -f : Forces umount to unmount a disk partition or mounted system
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