1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298
|
.\" This file Copyright (C) 1994-2001 Jeff Tranter
.\" (tranter@pobox.com)
.\" It may be distributed under the GNU Public License, version 2, or
.\" any higher version. See section COPYING of the GNU Public license
.\" for conditions under which this file may be redistributed.
.TH EJECT 1 "18 May 2001" "Linux" "User Commands"
.SH NAME
eject \- eject removable media
.SH SYNOPSIS
eject \-h
.br
eject [\-vnrsfqp] [<name>]
.br
eject [\-vn] \-d
.br
eject [\-vn] \-a on|off|1|0 [<name>]
.br
eject [\-vn] \-c slot [<name>]
.br
eject [\-vn] \-t [<name>]
.br
eject [\-vn] \-x <speed> [<name>]
.br
eject \-V
.SH DESCRIPTION
.B 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.
.PP
.SH "COMMAND\-LINE OPTIONS"
.TP 0.5i
.B \-h
This option causes
.B eject
to display a brief description of the command options.
.TP 0.5i
.B \-v
This makes
.B eject
run in verbose mode; more information is displayed about what the
command is doing.
.TP 0.5i
.B \-d
If invoked with this option,
.B eject
lists the default device name.
.TP 0.5i
.B \-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.
.TP 0.5i
.B \-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.
.TP 0.5i
.B \-t
With this option the drive is given a CD-ROM tray close command. Not
all devices support this command.
.TP 0.5i
.B \-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 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.
.TP 0.5i
.B \-n
With this option the selected device is displayed but no action is
performed.
.TP 0.5i
.B \-r
This option specifies that the drive should be ejected using a
CDROM eject command.
.TP 0.5i
.B \-s
This option specifies that the drive should be ejected using
SCSI commands.
.TP 0.5i
.B \-f
This option specifies that the drive should be ejected using a
removable floppy disk eject command.
.TP 0.5i
.B \-q
This option specifies that the drive should be ejected using a
tape drive offline command.
.TP 0.5i
.B \-p
This option allow you to use /proc/mounts instead /etc/mtab. It
also passes the \-n option to umount(1).
.TP 0.5i
.B \-m
This option allows eject to work with device drivers which automatically
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.
.TP 0.5i
.B \-V
This option causes
.B eject
to display the program version and exit.
.SH LONG OPTIONS
All options have corresponding long names, as listed below. The long
names can be abbreviated as long as they are unique.
.br
\-h \-\-help
.br
\-v \-\-verbose
.br
\-d \-\-default
.br
\-a \-\-auto
.br
\-c \-\-changerslot
.br
\-t \-\-trayclose
.br
\-x \-\-cdspeed
.br
\-n \-\-noop
.br
\-r \-\-cdrom
.br
\-s \-\-scsi
.br
\-f \-\-floppy
.br
\-q \-\-tape
.br
\-V \-\-version
.br
\-p \-\-proc
.br
\-m \-\-no-unmount
.br
.SH EXAMPLES
.PP
Eject the default device:
.IP
eject
.PP
Eject a device or mount point named cdrom:
.IP
eject cdrom
.PP
Eject using device name:
.IP
eject /dev/cdrom
.PP
Eject using mount point:
.IP
eject /mnt/cdrom/
.PP
Eject 4th IDE device:
.IP
eject hdd
.PP
Eject first SCSI device:
.IP
eject sda
.PP
Eject using SCSI partition name (e.g. a ZIP drive):
.IP
eject sda4
.PP
Select 5th disc on multi-disc changer:
.IP
eject \-v \-c4 /dev/cdrom
.PP
Turn on auto-eject on a SoundBlaster CD-ROM drive:
.IP
eject \-a on /dev/sbpcd
.SH EXIT STATUS
.PP
Returns 0 if operation was successful, 1 if operation failed or command
syntax was not valid.
.SH NOTES
.PP
.B 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
.B eject
does not work, it is most likely a limitation of the kernel driver
for the device and not the
.B 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).
.B 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,
.B eject
will follow the link and use the device that it points to.
If
.B 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
.B eject
can determine the appropriate devices using easily remembered names.
To save typing you can create a shell alias for the eject options that
work for your particular setup.
.SH AUTHOR
.B 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 (krivanek@fmph.uniba.sk) and his
cdrom_speed command.
.SH SEE ALSO
mount(2), umount(2), mount(8), umount(8)
.br
/usr/src/linux/Documentation/cdrom/
|