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.
-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.
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
2020-06-09. (At that time, the date of the most recent commit that
was found in the repository was 2020-06-04.) 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)