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vold.conf(4)                     File Formats                     vold.conf(4)

       vold.conf - volume management configuration file


       The  vold.conf file contains the removable media configuration informa-
       tion used by vold(1M). This information includes the database  to  use,
       labels that are supported, devices to use, actions to take when certain
       media events occur, and the list of file systems  that  are  unsafe  to
       eject without unmounting.

       Modify  vold.conf  to specify which program should be called when media
       events (actions) occur or when you need to add another device  to  your
       system. See EXAMPLES for more information on adding devices.

       If  you  modify  vold.conf,  you  must tell vold to reread vold.conf by
       sending a HUP signal. Use the following command:

       # kill -HUP `pgrep vold`

   File Format
       The syntax for the vold.conf file is shown here.

       # Database to use
       db database

       # Labels supported
       label label_type shared_object device

       # Devices to use
       use device type special shared_object symname [ options ]

       # Actions
       insert regex [ options ] program program args
       eject regex [ options ] program program args
       notify regex [ options ] program program args

       # List of file system types unsafe to eject
       unsafe fs_type fs_type

       Of these syntax fields, you  can  safely  modify  Devices  to  use  and
       Actions. Do not modify the db line.

   Devices to Use Field
       All use device statements must be grouped together by device type. (For
       example, all use cdrom statements must be grouped together and all  use
       floppy  statements  must  be grouped together.) The explanations of the
       syntax for the Devices to use field are as follows:

       device                  The type of removable media device to be  used.
                               Legal  values  are  cdrom,  floppy,  pcmem  and

       type                    The specific capabilities of the device.  Legal
                               value is drive.

       special                 This  sh(1)  expression specifies the device or
                               devices to be used. Path  usually  begins  with

       shared_object           The  name  of  the  program  that  manages this
                               device. vold(1M) expects to find  this  program
                               in /usr/lib/vold.

       symname                 The  symbolic  name that refers to this device.
                               The symname is placed in the device directory.

       options                 The user, group, and mode permissions  for  the
                               media inserted (optional).

       The special and symname parameters are related. If special contains any
       shell wildcard characters (that is, has one or more asterisks or  ques-
       tion marks in it), then the syname must end with"%d". In this case, the
       devices that are found to match the regular expression are sorted, then
       numbered. The first device will have a zero filled in for the "%d", the
       second device found will have a one, and so on.

       If the special specification does not have any shell  wildcard  charac-
       ters then the symname parameter must explicitly specify a number at its
       end (see EXAMPLES below).

   Actions Field
       Here are the explanations of the syntax for the Actions field.

       insert|eject|notify     The media event prompting the event.

       regex                   This  sh(1)  regular  expression   is   matched
                               against each entry in the /vol file system that
                               is being affected by this event.

       options                 You can specify what user or  group  name  that
                               this event is to run as (optional).

       program                 The  full path name of an executable program to
                               be run when regex is matched.

       program args            Arguments to the program.

   Default Values
       The default vold.conf file is shown here.

       # Volume Daemon Configuration file

       # Database to use (must be first)
       db db_mem.so

       # Labels supported
       label cdrom label_cdrom.so cdrom
       label dos label_dos.so floppy rmdisk pcmem
       label sun label_sun.so floppy rmdisk pcmem

       # Devices to use
       use cdrom drive /dev/rdsk/c*s2 dev_cdrom.so cdrom%d
       use floppy drive /dev/rdiskette[0-9] dev_floppy.so floppy%d
       use pcmem drive /dev/rdsk/c*s2 dev_pcmem.so pcmem%d forceload=true
       use rmdisk drive /dev/rdsk/c*s2 dev_rmdisk.so rmdisk%d

       # Actions
       eject dev/diskette[0-9]/* user=root /usr/sbin/rmmount
       eject dev/dsk/* user=root /usr/sbin/rmmount
       insert dev/diskette[0-9]/* user=root /usr/sbin/rmmount
       insert dev/dsk/* user=root /usr/sbin/rmmount
       notify rdsk/* group=tty user=root /usr/lib/vold/volmissing -p
       remount dev/diskette[0-9]/* user=root /usr/sbin/rmmount
       remount dev/dsk/* user=root /usr/sbin/rmmount

       # List of file system types unsafe to eject
       unsafe ufs hsfs pcfs udfs

       Example 1: A sample vold.conf file.

       To add a CD-ROM drive to the vold.conf file that  does  not  match  the
       default  regular  expression (/dev/rdsk/c*s2), you must explicitly list
       its device path and what symbolic name (with %d) you  want  the  device
       path  to  have.  For  example,  to add a CD-ROM drive that has the path
       /dev/rdsk/my/cdroms? (where s? are the different slices), add the  fol-
       lowing line to vold.conf (all on one line):

       use cdrom drive /dev/rdsk/my/cdroms2 dev_cdrom.so cdrom%d

       Then,  when media is inserted in this CD-ROM drive, vold assigns it the
       next symbolic name. For example, if two CD-ROMs match the default regu-
       lar  expression,  they  would be named cdrom0 and cdrom1. And, any that
       match the added regular expression would be named starting with cdrom2.

       For a diskette that  does  not  match  the  vold.conf  default  regular
       expression  (vol/dev/aliases/floppy[0-9]), a similar line would have to
       be added. For example, to add a diskette whose  path  was  /dev/my/fd0,
       you would add the following to vold.conf:

        use floppy drive /dev/my/fd0 dev_floppy.so floppy%d

       sh(1),    volcancel(1),    volcheck(1),   volmissing(1),   rmmount(1M),
       rpc.smserverd(1M), vold(1M), rmmount.conf(4), volfs(7FS)

       vold manages both the block and character device for  removable  media.
       However, to make the configuration file easier to set up and scan, only
       one of these devices needs to be specified. If you follow  the  conven-
       tions  specified  below, vold figures out both device names if only one
       of them is specified. For example, if you specify the block device,  it
       figures  out  the  pathname to the character device; if you specify the
       pathname to the character device, it figures out the block device.

   CD-ROM Naming Conventions
       The CD-ROM pathname must have a directory component of  rdsk  (for  the
       character  device)  and  dsk  for the block device. For example, if you
       specify the character device using the line:

              use cdrom drive /dev/rdsk/my/cdroms2 dev_cdrom.so cdrom%d

       then it is assumed that the block device is at


   Diskette Naming Conventions
       For diskettes, vold requires that the device pathnames  end  in  either
       rfd[0-9]  or  rdiskette[0-9]  for  the character device, and fd[0-9] or
       diskette[0-9] for the block device. As  with the CD-ROM,  it  generates
       either  the block name given the character name, or the character  name
       given the block name.

SunOS 5.10                        21 Jun 2002                     vold.conf(4)