NAME
mount_cdfs: mount, umount — mount and unmount CDFS file systems
SYNOPSIS
/usr/sbin/mount
[-l]
[-p|-v]
/usr/sbin/mount
-a
[-F
cdfs]
[-eQ]
/usr/sbin/mount
[-F
cdfs]
[-eQrV]
[-o
specific_options]
{special|directory}
/usr/sbin/mount
[-F
cdfs]
[-eQrV]
[-o
specific_options]
special
directory
/usr/sbin/umount
-a
[-F
cdfs]
[-v]
/usr/sbin/umount
[-v]
[-V]
{special|directory}
DESCRIPTION
The
mount
command mounts file systems.
Only
a superuser
can mount file systems.
Other users can use
mount
to list mounted file systems.
The
mount
command attaches
special,
a removable file system, to
directory,
a directory on the file tree.
directory,
which must already exist,
will become the name of the root of the newly mounted file system.
special
and
directory
must be given as absolute path names.
If either
special
or
directory
is omitted,
mount
attempts to determine the missing value from an entry in the
/etc/fstab
file.
mount
can be invoked on any removable file system, except
/.
If
mount
is invoked without any arguments,
it lists all of the mounted file systems from the file system mount table,
/etc/mnttab.
The
umount
command unmounts mounted file systems.
Only a superuser can unmount file systems.
Options (mount)
mount
recognizes the following options:
- -a
Attempt to mount all file systems described in
/etc/fstab.
All optional fields in
/etc/fstab
must be included and supported.
If
-F
cdfs
is specified, all CDFS file systems in
/etc/fstab
are mounted. If
noauto
is specified in an entry's option list, this entry is skipped.
File systems are not necessarily mounted in the order listed in
/etc/fstab.
- -e
Verbose mode.
Write a message to standard output
indicating which file system is being mounted.
- -F cdfs
Specify the CDFS file system type (see
fstyp(1M)).
- -l
Limit actions to local file systems only.
- -o specific_options
Specify options specific to the CDFS file system type.
specific_options
is a list of comma separated suboptions and/or keyword/attribute pairs
intended for the CDFS specific module of the command.
The following
specific_options
are valid on CDFS file systems.
- cdcase
Suppress the display of version numbers.
Show and match file names as lower case.
- rr
Use Rock Ridge extension to the ISO-9660
file system (default).
- norr
Do not use Rock Ridge extension to the
ISO-9660 file system.
- defaults
Use all default options.
When given, this must be the only option specified.
- ro
Mount read-only (default).
- suid
Allow set-user-ID execution (default).
- nosuid
Do not allow set-user-ID execution.
- -p
Report the list of mounted file systems in the
/etc/fstab
format.
- -Q
Prevent the display of error messages
resulting from an attempt to mount already mounted file systems.
- -r
Mount the specified file system as read-only.
This option is equivalent to the
-o ro
specific_option.
For CDFS file systems this is a default option.
- -v
Report the regular output with file system type and flags;
however,
directory
and
special
fields are reversed.
- -V
Echo the completed command line, but performs no other action.
The command line is generated
by incorporating the user-specified options
and other information derived from
/etc/fstab.
This option allows the user to verify the command line.
Options (umount)
umount
recognizes the following options:
- -a
Attempt to unmount all file systems described in
/etc/mnttab.
All optional fields in
/etc/mnttab
must be included and supported.
If
-F
cdfs
is specified, all CDFS file systems in
/etc/mnttab
are unmounted.
File systems are not necessarily unmounted in the order listed in
/etc/mnttab.
- -F cdfs
Specify the CDFS file system type (see
fstyp(1M)).
- -v
Verbose mode.
Write a message to standard output
indicating which file system is being unmounted.
- -V
Echo the completed command line, but performs no other action.
The command line is generated
by incorporating the user-specified options
and other information derived from
/etc/fstab.
This option allows the user to verify the command line.
DIAGNOSTICS
umount
complains if the special file is not mounted or if it is busy.
The file system is busy if it contains an open file
or some logged-in user's working directory.
EXAMPLES
Mount a local CDFS disk:
mount -F cdfs /dev/disk/disk4 /cdrom
Unmount a local CDFS disk:
WARNINGS
Some degree of validation is done on the file system, however, it is
generally unwise to mount file systems that are defective, corrupt,
or of unknown origin.
AUTHOR
mount
was developed by HP,
AT&T,
the University of California, Berkeley,
and Sun Microsystems.
FILES
- /etc/fstab
Static information about the file systems
- /etc/mnttab
Mounted file system table
STANDARDS CONFORMANCE
mount: SVID3
umount: SVID3
Printable version
