umount.nfs(8) — Linux manual page

UMOUNT.NFS(8)            System Manager's Manual            UMOUNT.NFS(8)

NAME         top

       umount.nfs, umount.nfs4 - unmount a Network File System

SYNOPSIS         top

       umount.nfs dir [-fvnrlh ]

DESCRIPTION         top

       umount.nfs and umount.nfs4 are a part of nfs(5) utilities package,
       which provides NFS client functionality.

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

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

OPTIONS         top

       -f     Force unmount the file system in case of unreachable NFS
              system.

       -v     Be verbose.

       -n     Do not update /etc/mtab.  By default, an entry is created
              in /etc/mtab for every mounted file system. Use this option
              to skip deleting an entry.

       -r     In case unmounting fails, try to mount read-only.

       -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.

       -h     Print help message.

NOTE         top

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

FILES         top

       /etc/fstab
              file system table

       /etc/mtab
              table of mounted file systems

SEE ALSO         top

       nfs(5), umount(8),

AUTHOR         top

       Amit Gud <agud@redhat.com>

COLOPHON         top

       This page is part of the nfs-utils (NFS utilities) project.
       Information about the project can be found at 
       ⟨http://linux-nfs.org/wiki/index.php/Main_Page⟩.  If you have a bug
       report for this manual page, see
       ⟨http://linux-nfs.org/wiki/index.php/Main_Page⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨git://git.linux-nfs.org/projects/steved/nfs-utils.git⟩ on
       2025-08-11.  (At that time, the date of the most recent commit
       that was found in the repository was 2025-06-27.)  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page,
       or you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a
       mail to man-pages@man7.org

                                6 Jun 2006                  UMOUNT.NFS(8)

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