mount(1M) manual page
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mount, umount - mount or unmount file systems and remote resources
mount [ -p | -v ]
mount [ -F FSType ] [ generic_options ] [ -o specific_options ] [ -O ]
special | mount_point
mount [ -F FSType ] [ generic_options ] [ -o specific_options ] [ -O ]
special mount_point
mount -a [ -F FSType ] [ -V ] [ current_options ] [ -o specific_options ]
[ mount_point. . . ]
umount [ -V ] [ -o specific_options ] special | mount_point
umount -a [ -V ] [ -o specific_options ] [ mount_point. . . ]
SUNWcsu
mount attaches a file system to the file system hierarchy
at the mount_point, which is the pathname of a directory. If mount_point
has any contents prior to the mount operation, these are hidden until
the file system is unmounted.
umount unmounts a currently mounted file system,
which may be specified either as a mount_point or as special, the device
on which the file system resides.
mount and umount maintain a table of
mounted file systems in /etc/mnttab, which is described in mnttab(4)
.
mount adds an entry to the mount table; umount removes an entry from the
table.
When invoked with both the special and mount_point arguments and
the -F option, mount validates all arguments except for special and invokes
the appropriate FSType-specific mount module. If invoked with no arguments,
mount lists all the mounted file systems recorded in the mount table,
/etc/mnttab. If invoked with a partial argument list (with only one of
special or mount_point, or with both special or mount_point specified
but not FSType), mount will search /etc/vfstab for an entry that will
supply the missing arguments. If no entry is found, and the special argument
starts with "/", the default local file system type specified in /etc/default/fs
will be used. Otherwise the default remote file system type will be used.
The default remote file system type is determined by the first entry in
the /etc/dfs/fstypes file. After filling in missing arguments, mount
will invoke the FSType-specific mount module.
Only a super-user can mount
or unmount file systems using mount and umount. However, any user can use
mount to list mounted file systems and resources.
- -F FSType
- Used to
specify the FSType on which to operate. The FSType must be specified
or must be determinable from /etc/vfstab, or by consulting /etc/default/fs
or /etc/dfs/fstypes.
- -a [ mount_points. . . ]
- Perform mount or umount operations
in parallel, when possible.
If mount points are not specified, mount will
mount all file systems whose /etc/vfstab "mount at boot" field is "yes".
If mount points are specified, then /etc/vfstab "mount at boot" field will
be ignored.
If mount points are specified, umount will only umount those
mount points. If none is specified, then umount will attempt to umount all
filesystems in /etc/mnttab, with the exception of certain system required
file systems: /, /usr, /var, /proc, /dev/fd, and /tmp.
- -p
- Print the list
of mounted file systems in the /etc/vfstab format. Must be the only option
specified.
- -v
- Print the list of mounted file systems in verbose format. Must
be the only option specified.
- -V
- Echo the complete command line, but do not
execute the command. umount generates a command line by using the options
and arguments provided by the user and adding to them information derived
from /etc/mnttab. This option should be used to verify and validate the
command line.
- generic_options
- Options that are commonly supported by most FSType-specific
command modules. The following options are available:
- -m
- Mount the file system without making an entry in /etc/mnttab.
- -r
- Mount
the file system read-only.
- -o
- Specify FSType-specific options in a comma separated
(without spaces) list of suboptions and keyword-attribute pairs for interpretation
by the FSType-specific module of the command. (See mount_ufs(1M)
)
- -O
- Overlay
mount. Allow the file system to be mounted over an existing mount point,
making the underlying file system inaccessible. If a mount is attempted
on a pre-existing mount point without setting this flag, the mount will
fail, producing the error ‘device busy’.
- /etc/mnttab
- mount table
- /etc/default/fs
- default local file system type. Default values can be set for the following
flags in /etc/default/fs. For example: LOCAL
=ufs
- LOCAL:
- The default partition
for a command if no FSType is specified.
- /etc/vfstab
- list of default parameters
for each file system.
mount_cachefs(1M)
, mount_hsfs(1M)
, mount_nfs(1M)
,
mount_pcfs(1M)
, mount_tmpfs(1M)
, mount_ufs(1M)
, mountall(1M)
, umountall(1M)
,
setmnt(1M)
, mnttab(4)
, vfstab(4)
, lofs(7FS)
, pcfs(7FS)
If the directory on which a file system is to be mounted is a symbolic
link, the file system is mounted on the directory to which the symbolic
link refers, rather than on top of the symbolic link itself.
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