.\"@(#)umount.nfs.8"
.TH UMOUNT.NFS 8 "6 Jun 2006"
.SH NAME
umount.nfs, umount.nfs4 \- unmount a Network File System
.SH SYNOPSIS
.BI "umount.nfs" " dir" " [\-fvnrlh ]"
.SH DESCRIPTION
.BR umount.nfs
and
.BR umount.nfs4
are a part of 
.BR nfs (5)
utilities package, which provides NFS client functionality.

.BR umount.nfs4 
and
.BR umount.nfs
are meant to be used by the
.BR umount (8)
command for unmounting NFS shares. This subcommand, however, can also be used as a standalone command with limited functionality.

.I dir 
is the directory on which the file system is mounted.

.SH OPTIONS
.TP
.BI "\-f"
Force unmount the file system in case of unreachable NFS system.
.TP
.BI "\-v"
Be verbose.
.TP
.BI "\-n"
Do not update 
.I /etc/mtab. 
By default, an entry is created in 
.I /etc/mtab 
for every mounted file system. Use this option to skip deleting an entry.
.TP
.BI "\-r"
In case unmounting fails, try to mount read-only.
.TP
.BI "\-l"
Lazy unmount. Detach the file system from the file system hierarchy now, and cleanup all references to the file system as soon as it is not busy anymore.
.TP
.BI "\-h"
Print help message.

.SH NOTE
For further information please refer 
.BR nfs (5)
and
.BR umount (8)
manual pages.

.SH FILES
.TP 18n
.I /etc/fstab
file system table
.TP
.I /etc/mtab
table of mounted file systems

.PD
.SH "SEE ALSO"
.BR nfs (5),
.BR umount (8),

.SH "AUTHOR"
Amit Gud <agud@redhat.com>