eject man page on ElementaryOS

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EJECT(1)			 User Commands			      EJECT(1)

       eject - eject removable media

       eject -h
       eject [-vnrsfmqp] [<name>]
       eject [-vn] -d
       eject [-vn] -a on|off|1|0 [<name>]
       eject [-vn] -c slot [<name>]
       eject [-vn] -i on|off|1|0 [<name>]
       eject [-vn] -t [<name>]
       eject [-vn] -T [<name>]
       eject [-vn] -x <speed> [<name>]
       eject [-vn] -X [<name>]
       eject -V

       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

       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",
       "/media"	 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.

       -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.

       -i on|1|off|0
	    This option controls locking of the hardware  eject	 button.  When
	    enabled, the drive will not be ejected when the button is pressed.
	    This is useful when you are carrying a laptop in a bag or case and
	    don't want it to eject if the button is inadvertently pressed.

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

       -T   With this option the drive is given a CD-ROM tray close command if
	    it's  opened,  and a CD-ROM tray eject command if it's closed. Not
	    all devices support this command, because it uses the above CD-ROM
	    tray close 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

       -X   With  this	option	the  CD-ROM drive will be probed to detect the
	    available speeds. The output is a list of speeds which can be used
	    as an argument of the -x option. This only works with Linux 2.6.13
	    or higher, on previous versions solely the maximum speed  will  be
	    reported.  Also  note that some drive may not correctly report the
	    speed and therefore this option does not work with them.

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

       -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

       -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).

       -m   This option allows eject to work with device drivers  which	 auto‐
	    matically  mount  removable	 media	and  therefore	must be always
	    mount(1)ed.	 The option tells eject to  not	 try  to  unmount  the
	    given  device,  even  if  it  is mounted according to /etc/mtab or

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

       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
       -T --traytoggle
       -x --cdspeed
       -X --listspeed
       -n --noop
       -r --cdrom
       -s --scsi
       -f --floppy
       -q --tape
       -V --version
       -p --proc
       -m --no-unmount

       Eject the default device:


       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 multi-disc changer:

	      eject -v -c4 /dev/cdrom

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

	      eject -a on /dev/sbpcd

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

       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

       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

       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

       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/', '/media/' ,'/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.

       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.

       The -T option was added by Sybren Stuvel (sybren@thirdtower.com),  with
       big thanks to Benjamin Schwenk (benjaminschwenk@yahoo.de).

       The -X option was added by Eric Piel (Eric.Piel@tremplin-utc.net).

       mount(2), umount(2), mount(8), umount(8)

Linux				  12 May 2005			      EJECT(1)

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