3 umount \- unmount a mounted file system
23 # Unmount the file system mounted on /mnt
26 This command unmounts a file system identified by
28 This name may be either a block special file, or the path name of a mount
30 A mounted file system is unmounted after the cache has been flushed to disk.
31 A diskette should never be removed while it is mounted.
32 If this happens, and is discovered before another diskette is inserted, the
33 original one can be replaced without harm.
34 Attempts to unmount a file system holding working directories or open files
35 will be rejected with a \&'device busy\&' message.