NAME
    eject - eject removable media

SYNOPSIS
    eject -h
    eject [-vnrsfqp] [<name>]
    eject [-vn] -d
    eject [-vn] -a on|off|1|0 [<name>]
    eject [-vn] -c slot [<name>]
    eject [-vn] -t [<name>]
    eject [-vn] -x <speed> [<name>]
    eject -V

DESCRIPTION
    Eject allows removable media (typically a CD-ROM, floppy disk, tape, or
    JAZ or ZIP disk) to be ejected under software control. The command can
    also control some multi-disc CD-ROM changers, the auto-eject feature
    supported by some devices, and close the disc tray of some CD-ROM
    drives.

    The device corresponding to <name> is ejected. The name can be a device
    file or mount point, either a full path or with the leading "/dev" or
    "/mnt" omitted.  If no name is specified, the default name "cdrom" is
    used.

    There are four different methods of ejecting, depending on whether the
    device is a CD-ROM, SCSI device, removable floppy, or tape. By default
    eject tries all four methods in order until it succeeds.

    If the device is currently mounted, it is unmounted before ejecting.

COMMAND-LINE OPTIONS
    -h  This option causes eject to display a brief description of the
   command options.

    -v  This makes  eject run in verbose mode; more information is dis-
   played about what the command is doing.

    -d  If invoked with this option, eject lists the default device  name.

    -a on|1|off|0
   This option controls the  auto-eject mode, supported by some
   devices. When enabled, the drive automatically ejects when the
   device is closed.

    -c <slot>
   With this option a CD slot can be selected from an ATAPI/IDE CD-
   ROM changer. Linux 2.0 or higher is required to use this feature.
   The  CD-ROM  drive can not be in use (mounted data CD or playing a
   music CD) for a change request to work. Please also note that the
   first slot of the changer is referred to as 0, not 1.

    -t  With this option the drive is given a CD-ROM tray close command.
   Not all devices support this command.

    -x <speed>
   With this option the drive is given a CD-ROM select speed command.
   The  speed argument is a number indicating the desired speed (e.g.
   8 for 8X speed), or 0 for maximum data rate. Not all devices sup-
   port this command and you can only specify speeds that the drive
   is capable of. Every time the media  is changed this option is
   cleared. This option can  be used alone, or with the -t and -c
   options.

    -n  With this option the selected device is displayed but no action is
   performed.

    -r  This option specifies that the drive should be ejected using a
   CDROM eject command.

    -s  This option specifies that the drive should be ejected using SCSI
   commands.

    -f  This option specifies that the drive should be ejected using a
   removable floppy disk eject command.

    -q  This option specifies that the drive should  be ejected using a
   tape drive offline command.

    -p  This option allow  you to use /proc/mounts instead /etc/mtab. It
   also passes the -n option to umount(1).

    -V  This option causes eject to display the program version and  exit.

LONG OPTIONS
    All options have corresponding long names, as listed below. The long
    names can be abbreviated as long as they are unique.

    -h --help
    -v --verbose
    -d --default
    -a --auto
    -c --changerslot
    -t --trayclose
    -x --cdspeed
    -n --noop
    -r --cdrom
    -s --scsi
    -f --floppy
    -q --tape
    -V --version
    -p --proc

EXAMPLES
    Eject the default device:

    eject

    Eject a device or mount point named cdrom:

    eject cdrom

    Eject using device name:

    eject /dev/cdrom

    Eject using mount point:

    eject /mnt/cdrom/

    Eject 4th IDE device:

    eject hdd

    Eject first SCSI device:

    eject sda

    Eject using SCSI partition name (e.g. a ZIP drive):

    eject sda4

    Select 5th disc on mult-disc changer:

    eject -v -c5 /dev/cdrom

    Turn on auto-eject on a SoundBlaster CD-ROM drive:

    eject -a on /dev/sbpcd

EXIT STATUS
    Returns 0 if operation was successful, 1 if operation failed or command
    syntax was not valid.

NOTES
    Eject only works with  devices that support one or more of the four
    methods of ejecting. This includes most CD-ROM drives (IDE, SCSI, and
    proprietary), some SCSI tape drives, JAZ drives, ZIP drives (parallel
    port, SCSI, and IDE versions), and LS120 removable floppies. Users have
    also reported success with floppy drives on Sun SPARC and Apple Macin-
    tosh systems. If eject does not work, it is most likely a limitation of
    the kernel driver for the device and not the eject program itself.

    The -r, -s, -f, and -q options allow controlling which methods are used
    to eject. More than one method can be specified. If none of  these
    options are specified,  it tries all  four (this works fine in most
    cases).

    Eject may not always be able to determine if the device is mounted
    (e.g. if it has several names). If the device name is a symbolic link,
    eject will follow the link and use the device that it points to.

    If eject determines that the device can have multiple partitions, it
    will attempt to unmount all mounted partitions of the device before
    ejecting. If an unmount fails, the program will not attempt to  eject
    the media.

    You can  eject an audio CD. Some CD-ROM drives will refuse to open the
    tray if the drive is empty. Some devices do not support the tray  close
    command.

    If the auto-eject feature is enabled, then the drive will always be
    ejected after running this command. Not all Linux kernel CD-ROM drivers
    support the auto-eject mode. There is no way to find out the state of
    the auto-eject mode.

    You need appropriate privileges to access the device files. Running as
    root or  setuid  root is required to  eject some devices (e.g. SCSI
    devices).

    The heuristic used to find a device, given a name, is as follows. If
    the name ends in a trailing slash, it is removed (this is to support
    filenames generated using shell file name completion).  If the name
    starts with '.' or '/', it tries to open it as a device file or mount
    point. If that  fails,  it  tries  prepending  '/dev/',  '/mnt/',
    '/dev/cdroms', '/dev/rdsk/', '/dev/dsk/', and finally './' to the name,
    until a device file or mount point is found that  can be opened. The
    program checks /etc/mtab for mounted devices. If that fails, it also
    checks /etc/fstab for mount points of currently unmounted devices.

    Creating symbolic links such as /dev/cdrom or /dev/zip is recommended
    so that eject can determine the appropriate devices using easily remem-
    bered names.

    To save typing you can create a shell alias for the eject options that
    work for your particular setup.

AUTHOR
    Eject was written by Jeff Tranter (tranter@pobox.com) and is released
    under the conditions of the GNU General Public License. See the file
    COPYING and notes in the source code for details.

    The   -x   option  was  added  by Nobuyuki  Tsuchimura
    (tutimura@nn.iij4u.or.jp), with  thanks  to Roland  Krivanek  (kri-
    vanek@fmph.uniba.sk) and his cdrom_speed command.

SEE ALSO
    mount(2), umount(2), mount(8), umount(8)
    /usr/src/linux/Documentation/cdrom/