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System Administration Commandsrmmount(1M)


NAME

 rmmount - removable media mounter for CD-ROM, floppy, Jaz drive, and others

SYNOPSIS

 /usr/sbin/rmmount [-D]

DESCRIPTION

 

The rmmount utility is a removable media mounter that is executed by Volume Management whenever a removable medium, such as a CD-ROM or a floppy, is inserted. The Volume Management daemon, vold(1M), manages removable media. rmmount can also be called by using volrmmount(1).

Upon insertion of a medium and following invocation of the volcheck(1) command, rmmount determines what type of file system (if any) is on that medium. If a file system is present, rmmount mounts the file system in one of the locations listed below.

For a diskette (floppy):

/floppy/floppy0
symbolic link to mounted floppy in local floppy drive
/floppy/floppy_name
mounted named floppy
/floppy/unnamed_floppy
mounted unnamed floppy

For a CD-ROM or a DVD-ROM:

/cdrom/cdrom0
symbolic link to mounted CD-ROM in local CD-ROM drive
/cdrom/CD-ROM_name
mounted named CD-ROM
/cdrom/CD-ROM_name/partition
mounted named CD-ROM with partitioned file system
/cdrom/unnamed_cdrom
mounted unnamed CD-ROM

For a Zip drive:

/rmdisk/zip0
symbolic link to mounted Zip medium in local Zip drive
/rmdisk/Zip_name
mounted named Zip medium
/rmdisk/Zip_name/partition
mounted named Zip medium with partitioned file system
/rmdisk/unnamed_zip
mounted unnamed Zip medium

For a Jaz drive:

/rmdisk/jaz0
symbolic link to mounted Jaz medium in local Jaz drive
/rmdisk/Jaz_name
mounted named Jaz medium
/rmdisk/Jaz_name/partition
mounted named Jaz medium with partitioned file system
/rmdisk/unnamed_Jaz
mounted unnamed Jaz medium

For a generic "rmdisk" drive:

/rmdisk/rmdisk0
symbolic link to mounted removable medium in local removable medium drive
/rmdisk/rmdisk_name
mounted named removable medium
/rmdisk/rmdisk_name/partition
mounted named removable medium with partitioned file system
/rmdisk/unnamed_rmdisk
mounted unnamed removable medium

If the media is read-only (for example, a CD-ROM or a floppy with write-protect tab set), the file system is mounted read-only.

If a file system is not identified, rmmount does not mount a file system. See the System Administration Guide: Basic Administration for more information on the location of CD-ROM, floppy, and other media without file systems. Also see volfs(7FS).

If a file system type has been determined, it is then checked to see that it is "clean." If the file system is "dirty," fsck -p (see fsck(1M)) is run in an attempt to clean it. If fsck fails, the file system is mounted read-only.

After the mount is complete, "actions" associated with the media type are executed. These actions allow for the notification to other programs that new media are available. These actions are shared objects and are described in the configuration file, /etc/rmmount.conf. See rmmount.conf(4).

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.

In order to execute an action, rmmount performs a dlopen(3DL) on the shared object and calls the action function defined within it. The definition of the interface to actions can be found in /usr/include/rmmount.h.

File systems mounted by rmmount are always mounted with the nosuid flag set, thereby disabling setuid programs and access to block or character devices in that file system. Upon ejection, rmmount unmounts mounted file systems and executes actions associated with the media type. If a file system is "busy" (that is, it contains the current working directory of a live process), the ejection will fail.

OPTIONS

 
-D
Turn on the debugging output from the rmmount dprintf calls.

FILES

 
/etc/rmmount.conf
removable media mounter configuration file
/usr/lib/rmmount/*.so.1
shared objects used by rmmount.

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
AvailabilitySUNWvolu

SEE ALSO

 

volcancel(1), volcheck(1), volmissing(1), volrmmount(1), fsck(1M), vold(1M), dlopen(3DL), rmmount.conf(4), vold.conf(4), attributes(5), volfs(7FS)

System Administration Guide: Basic Administration


SunOS 5.9Go To TopLast Changed 9 Jan 2001

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.