NAME
rmmount.conf − removable media mounter configuration file
SYNOPSIS
/etc/rmmount.conf
DESCRIPTION
The rmmount.conf file contains the rmmount(1M) configuration information. This file describes where to find shared objects that perform actions on file systems after identifying and mounting them. The rmmount.conf file is also used to share file systems on removable media. It can also direct the rmmount utility to run fsck on one or more file systems before mounting them, with the fsck command line options specified in rmmount.conf.
Actions are executed in the order in which they appear in the configuration file. The action function can return either 1 or 0. If it returns 0, no further actions will be executed. This allows the function to control which applications are executed. For example, action_filemgr always returns 0 if the File Manager is running, thereby preventing subsequent actions from being executed.
To execute an action after a medium has been inserted and while the File Manager is not running, list the action after action_filemgr in the rmmount.conf file. To execute an action before the File Manager becomes aware of the medium, list the action before action_filemgr in the rmmount.conf file.
The syntax for the rmmount.conf file is as follows:
# File system
identification
ident filesystem_type shared_object media_type [media_type
...]
# Actions
action media_type shared_object args_to_so
# File system
sharing
share media_or_file_system share_command_options
# Mount command
options
mount media_or_file_system [file_system_spec] -o
mount_command_options
# Optionally
fsck command options
fsck media_type filesystem_type -o fsck_command_options
Explanations of
the syntax for the File system identification fields
are as follows:
filesystem_type
An ASCII string used as the file system type flag of the mount command (see the -F option of mount(1M)). It is also used to match names passed to rmmount(1M) from Volume Management.
shared_object
Programs that identify file systems and perform actions. This shared_object is found at /usr/lib/fs/filesystem_type/shared_object.
media_type
The type of medium where this file system resides. Legal values are cdrom, floppy, jaz, rmdisk, and zip.
Explanations of
the syntax for the Actions fields are as follows.
media_type
Type of medium. This argument is passed in from Volume Management as VOLUME_TYPE.
shared_object
Programs that identify file systems and perform actions. If shared_object starts with ’/’ (slash), the full path name is used; otherwise, /usr/lib/rmmount is prepended to the name.
args_to_so
Arguments passed to the shared_object. These arguments are passed in as an argc and argv[].
The definition of the interface to Actions is located in /usr/include/rmmount.h.
Explanations of
the syntax for the File system sharing fields are as
follows.
media_or_file_system
Either the type of medium or the specific file system to share.
share_command_options
Options of the share command. See share(1M) for more information about these options.
Explanations of
the syntax for the Mount command options fields are
as follows:
media_or_file_system
Either the type of medium or the specific file system to share.
file_system_spec
Specifies one or more file systems to which this line applies. Defaults to "all" file system types.
mount_command_options
One or more options to be passed to the mount command. Multiple options require a space delimiter.
Explanations of
the syntax for the fsck command options fields are as
follows:
media_type
The type of removable medium. A Bourne shell regular expression that matches names of file system media whose aliases are listed under /vol/dev/aliases. Examples include cdrom0, cdrom1, cdrom*, jaz0, jaz1, and jaz*.
filesystem_type
The type of file system, for example, ufs or hsfs, that resides on the medium specified in media_type.
fsck_command_options
One or more options to be passed to fsck(1M). Multiple options must be separated by spaces.
The algorithm for the fsck configuration line is as follows:
|
1. |
The fsck configuration line tells rmmount to run fsck on filesystem_type, as described above. The filesystem_type must be correct for the media_type specified. | ||
|
2. |
If filesystem_type is not present, rmmount runs fsck on all file systems on all media that match media_type. | ||
|
3. |
If rmmount.conf contains no fsck configuration line or contains an fsck configuration line with a media_type that does not match a medium’s alias, rmmount does not run fsck on the removable medium’s file system, unless mount reports that the file system’s dirty bit is set. |
Default
Values
The following is an example of an rmmount.conf
file:
#
# Removable Media Mounter configuration file.
#
# File
system identification
ident hsfs ident_hsfs.so cdrom
ident ufs ident_ufs.so cdrom floppy rmdisk pcmem
ident pcfs ident_pcfs.so floppy rmdisk pcmem
ident udfs ident_udfs.so cdrom floppy
# Actions
action cdrom action_filemgr.so
action floppy action_filemgr.so
action rmdisk action_filemgr.so
EXAMPLES
Example 1: Sharing of Various File Systems
The following
examples show how various file systems are shared using the
share syntax for the rmmount.conf file. These lines
are added after the Actions entries.
share cdrom*
Shares all CD-ROMs via NFS and applies no access restrictions.
share solaris_2.x*
Shares CD-ROMs named solaris_2.x* with no access restrictions.
share cdrom* -o ro=engineering
Shares all CD-ROMs via NFS but exports only to the "engineering" netgroup.
share solaris_2.x* -d distribution CD
Shares CD-ROMs named solaris_2.x* with no access restrictions and with the description that it is a distribution CD-ROM.
share floppy0
Shares the file system of any floppy inserted into floppy drive 0.
share jaz0
Shares the file system on Jaz drive 0.
Example 2: Customizing mount Operations
The following
examples show how different mount options could be
used to customize how rmmount mounts various media:
mount cdrom* hsfs -o nrr
Mounts all High Sierra CD-ROMs with the nrr (no Rock Ridge extensions) option (see mount_hsfs(1M)).
mount floppy1 -o ro
Will always mount the second floppy disk read-only (for all file system types).
mount floppy1 -o ro foldcase
Will always mount the second floppy disk read-only (for all file system types) and pass the foldcase mount option.
mount jaz1 -o ro
Mounts the medium in Jaz drive 1 read-only, for all file system types.
Example 3: Telling rmmount to Check File Systems Before Mounting Them
The following
examples show how to tell rmmount to check file
systems with fsck before mounting them, and how to
specify the command line options to be used with
fsck:
fsck floppy* ufs —o f
Performs a full file system check on any UFS floppies, ignoring the clean flag, before mounting them.
fsck floppy* ufs -o p
Uses the fsck p (preen) flag for all UFS floppies.
fsck cdrom* -o f
Tells rmmount to run fsck before mounting any file system on CD-ROM.
fsck jaz* ufs -o f
Tells rmmount to perform a full file system check on any UFS Jaz media, ignoring the clean flag, before mounting them.
SEE ALSO
volcancel(1), volcheck(1), volmissing(1), mount(1M), mount_hsfs(1M), rmmount(1M), share(1M), vold(1M), vold.conf(4), volfs(7FS)
NOTES
When using the mount options line, verify that the specified options will work with the specified file system types. The mount command will fail if an incorrect mount option/file system combination is specified. Multiple mount options require a space delimiter.