mount_hfs(1M)															     mount_hfs(1M)

NAME

       mount_hfs: mount, umount - mount and unmount HFS file systems

SYNOPSIS

       specific_options] {special|directory}

       specific_options] special directory

       {special|directory}

DESCRIPTION

       The command mounts file systems.  Only a superuser can mount file systems.  Other users can use to list mounted file systems.

       The  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, attempts to determine the missing value from an entry in the file.  can be invoked on any removable file
       system, except

       If is invoked without any arguments, it lists all of the mounted file systems from the file system mount table,

       The command unmounts mounted file systems.  Only a superuser can unmount file systems.

   Options (mount)
       recognizes the following options:

	      Attempt to mount all file systems described in
			     All optional fields in must be included and supported.  If is specified, all HFS file systems in are mounted.  If	is
			     specified	in  an	entry's option list, this entry is skipped.  File systems are not necessarily mounted in the order
			     listed in

	      Verbose mode.  Write a message to standard output indicating which file system is being mounted.

	      Force the file system to be mounted,
			     even if the file system clean flag indicates that the file  system  should  have  run  on	it  before  mounting  (see
			     fsck(1M)).  This option is valid only on HFS file systems.

	      Specify the HFS file system type (see
			     fstyp(1M)).

	      Limit actions to local file systems only.

	      Specify options specific to the HFS file system type.
			     specific_options is a list of comma separated suboptions and/or keyword/attribute pairs intended for the HFS specific
			     module of the command.

			     The following specific_options are valid on HFS file systems.

			     Use all default options.
					    When given, this must be the only option specified.

			     Mount read-write (default).

			     Mount read-only.

			     Allow set-user-ID execution (default).

			     Do not allow set-user-ID execution.

			     Enable, where possible, asynchronous writes to disk.

			     Enable delayed or buffered writes to disk.
					    This is the default.

			     Enable relaxed posting of file system metadata.

			     Enable rigorous posting of file system metadata.
					    This is the default.

			     Attempt to enable the creation of files greater than 2 gigabytes in size.
					    File systems  have	to  be	created  or  configured  to  enable  large  files  (see  mkfs_hfs(1M)  and
					    fsadm_hfs(1M)).

			     Attempt to disable the creation of files greater than 2 gigabytes in size.
					    File  systems  have  to  be  created  or  configured  to  disable  large  files. (see mkfs_hfs(1M) and
					    fsadm_hfs(1M)).

			     Enable user quotas
					    (valid only for file systems).  HFS supports user quotas only.

			     Disable disk quotas (default).

			     Mounting with the option also enables quotas for the file system, unlike some other systems, which require the  addi-
			     tional invocation of the command after the file system has been mounted (see quotaon(1M)).  Running does no harm, but
			     it is not necessary.

	      Report the list of mounted file systems in the
			     format.

	      Prevent the display of error messages
			     resulting from an attempt to mount already mounted file systems.

	      Mount the specified file system as read-only.
			     This option is equivalent to the specific_option.	Physically write-protected file systems must be  mounted  in  this
			     way or errors occur when access times are updated, whether or not any explicit write is attempted.

	      Report the regular output with file system type and flags;
			     however, directory and special fields are reversed.

	      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 This
			     option allows the user to verify the command line.

   Options (umount)
       recognizes the following options:

	      Attempt to unmount all file systems described in
			     All optional fields in must be included and supported.  If is specified, all HFS file systems in are unmounted.  File
			     systems are not necessarily unmounted in the order listed in

	      Specify the HFS file system type (see
			     fstyp(1M)).

	      Verbose mode.  Write a message to standard output indicating which file system is being unmounted.

	      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 This
			     option allows the user to verify the command line.

DIAGNOSTICS

       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 HFS disk:

       Unmount a local HFS 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

       was developed by HP, AT&T, the University of California, Berkeley, and Sun Microsystems.

FILES

       Static information about the file systems
       Mounted file system table

SEE ALSO

       fsadm_hfs(1M), fsclean(1M), mkfs_hfs(1M), mount(1M), quotaon(1M), mount(2), fstab(4), mnttab(4), fs_wrapper(5), quota(5), disk(7).

STANDARDS CONFORMANCE

																     mount_hfs(1M)