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EJECT(1)			 User Commands			      EJECT(1)



NAME
       eject - eject removable media

SYNOPSIS
       eject -h
       eject [-vnrsfmqp] [<name>]
       eject [-vn] -d
       eject [-vn] -a on|off|1|0 [<name>]
       eject [-vn] -c slot [<name>]
       eject [-vn] -t [<name>]
       eject [-vn] -T [<name>]
       eject [-vn] -x <speed> [<name>]
       eject [-vn] -X [<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",
       "/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.



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.


       -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
	    options.


       -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
	    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).


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


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


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 multi-disc changer:

	      eject -v -c4 /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/', '/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.


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.

       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).


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



Linux				  12 May 2005			      EJECT(1)
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