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- .Dd February 2, 2015
- .Dt UMOUNT 8
- .Os ubase
- .Sh NAME
- .Nm umount
- .Nd unmount file systems
- .Sh SYNOPSIS
- .Nm
- .Op Fl fln
- .Ar target...
- .Nm
- .Op Fl fln
- .Fl a
- .Sh DESCRIPTION
- .Nm
- detaches the
- .Ar target
- filesystem(s). A file system is specified by giving the directory where it
- has been mounted. Giving the special device on which the file system
- lives may also work, but is obsolete, mainly because it will fail in
- case this device was mounted on more than one directory.
- .Sh OPTIONS
- .Bl -tag -width Ds
- .It Fl a
- All of the file systems described in
- .Pa /proc/mounts
- are unmounted. The proc filesystem is not unmounted.
- .It Fl f
- Force unmount (in case of an unreachable NFS server).
- .It Fl l
- Lazy unmount. Detach the filesystem from the fs hierarchy now, and cleanup
- all references to the filesystem as soon as it is not busy anymore.
- .It Fl n
- Unmount without writing in
- .Pa /etc/mtab .
- This is the default action.
- .El
- .Sh SEE ALSO
- .Xr umount 2 ,
- .Xr mount 8
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