MOUNT(8)                             BSD                              MOUNT(8)



NAME
     mount, umount - mount and dismount file system

SYNOPSIS
     /etc/mount [ special name [ -r ] ]

     /etc/mount -a

     /etc/umount special

     /etc/umount -a

DESCRIPTION
     mount announces to the system that a removable file system is present on
     the device special.  The file name must exist already; it must be a
     directory (unless the root of the mounted file system is not a
     directory).  It becomes the name of the newly mounted root.

     umount announces to the system that the removable file system previously
     mounted on device special is to be removed.

     These commands maintain a table of mounted devices in /etc/mtab. If
     invoked without an argument, mount prints the table.

     Physically write-protected and magnetic tape file systems must be mounted
     read-only or errors will occur when access times are updated, whether or
     not any explicit write is attempted.

OPTIONS
     -r        Indicates that the file system is to be mounted read-only.

     -a        If this option is present for either mount or umount, they
               attempt to mount or unmount all of the file systems described
               in /etc/fstab. In this case, special and name are taken from
               /etc/fstab. The special file name from /etc/fstab is the block
               special name.

FILES
     /etc/mtab mount table
     /etc/fstab     file system table

BUGS
     Mounting file systems full of garbage will crash the system.
     Mounting a root directory on a non-directory makes some apparently good
     pathnames invalid.

SEE ALSO
     mount(2), mtab(5), fstab(5)