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EJECT(1)                         User Commands                        EJECT(1)
NAME
       eject - eject removable media
SYNOPSIS
       eject [options] device|mountpoint
DESCRIPTION
       eject  allows  removable  media (typically a CD-ROM, floppy disk, tape,
       JAZ, ZIP or USB disk) to be ejected under software control.   The  com-
       mand  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  device or mountpoint is ejected.  If no
       name is specified, the default name /dev/cdrom is used.  The device may
       be   addressed   by   device  name  (e.g.  'sda'),  device  path  (e.g.
       '/dev/sda'), UUID=uuid or LABEL=label tags.
       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 a device partition is specified, the whole-disk device is used.   If
       the  device or a device partition is currently mounted, it is unmounted
       before ejecting.
OPTIONS
       -a, --auto on|off
              This option controls the  auto-eject  mode,  supported  by  some
              devices.   When enabled, the drive automatically ejects when the
              device is closed.
       -c, --changerslot slot
              With this option a CD slot can be selected from an ATAPI/IDE CD-
              ROM changer.  The CD-ROM drive cannot 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.
       -d, --default
              List the default device name.
       -F, --force
              Force eject, don't check device type.
       -f, --floppy
              This option specifies that the drive should be ejected  using  a
              removable floppy disk eject command.
       -h, --help
              Display help text and exit.
       -i, --manualeject on|off
              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  inadver-
              tently pressed.
       -M, --no-partitions-unmount
              The option tells eject to not try to unmount other partitions on
              partitioned devices.  If another partition is still mounted, the
              program will not attempt to eject the media.  It will attempt to
              unmount only the device or mountpoint given on the command line.
       -m, --no-unmount
              The option tells eject to not try to unmount at all.
       -n, --noop
              With this option the selected device is displayed but no  action
              is performed.
       -p, --proc
              This  option  allows  you to use /proc/mounts instead /etc/mtab.
              It also passes the -n option to umount(8).
       -q, --tape
              This option specifies that the drive should be ejected  using  a
              tape drive offline command.
       -r, --cdrom
              This  option  specifies that the drive should be ejected using a
              CDROM eject command.
       -s, --scsi
              This option specifies that the drive  should  be  ejected  using
              SCSI commands.
       -T, --traytoggle
              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.
       -t, --trayclose
              With this option the drive is given a CD-ROM tray close command.
              Not all devices support this command.
       -V, --version
              Display version information and exit.
       -v, --verbose
              Run  in  verbose  mode; more information is displayed about what
              the command is doing.
       -X, --listspeed
              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 drives may not cor-
              rectly  report the speed and therefore this option does not work
              with them.
       -x, --cdspeed speed
              With this option the drive is given a CD-ROM select  speed  com-
              mand.   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 support 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.
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
       Macintosh systems.  If eject does not work, it is most likely a limita-
       tion  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  (see also --no-partitions-unmount).  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 driv-
       ers 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 is required to eject some devices (e.g. SCSI devices).
AUTHORS
       Jeff Tranter <tranter AT pobox.com> - original author.
       Karel Zak <kzak AT redhat.com> and Michal  Luscon  <mluscon AT redhat.com>  -
       util-linux version.
SEE ALSO
       findmnt(8), lsblk(8), mount(8), umount(8)
AVAILABILITY
       The  eject  command  is part of the util-linux package and is available
       from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-
       linux/>.
Linux                             April 2012                          EJECT(1)