umount.nfs4(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

       -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

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 <>

COLOPHON         top

       This page is part of the nfs-utils (NFS utilities) project.
       Information about the project can be found at 
       ⟨⟩.  If you have a bug
       report for this manual page, see
       ⟨⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨;a=summary⟩ on
       2020-07-14.  (At that time, the date of the most recent commit that
       was found in the repository was 2020-06-18.)  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

                                 6 Jun 2006                    UMOUNT.NFS(8)