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Eric Andersenc9f20d92002-12-05 08:41:41 +00001#
2# For a description of the syntax of this configuration file,
3# see scripts/kbuild/config-language.txt.
4#
5
6menu "Linux System Utilities"
7
Denis Vlasenkod16950d2008-11-29 09:05:50 +00008config ACPID
9 bool "acpid"
10 default n
11 help
12 acpid listens to ACPI events coming either in textual form from
13 /proc/acpi/event (though it is marked deprecated it is still widely
14 used and _is_ a standard) or in binary form from specified evdevs
15 (just use /dev/input/event*).
16
17 It parses the event to retrieve ACTION and a possible PARAMETER.
18 It then spawns /etc/acpi/<ACTION>[/<PARAMETER>] either via run-parts
19 (if the resulting path is a directory) or directly as an executable.
20
21 N.B. acpid relies on run-parts so have the latter installed.
22
23config FEATURE_ACPID_COMPAT
24 bool "Accept and ignore redundant options"
25 default n
26 depends on ACPID
27 help
28 Accept and ignore compatibility options -g -m -s -S -v.
29
Denis Vlasenko1e19afd2008-10-12 11:20:08 +000030config BLKID
31 bool "blkid"
32 default n
33 select VOLUMEID
34 help
35 Lists labels and UUIDs of all filesystems.
36 WARNING:
37 With all submodules selected, it will add ~8k to busybox.
38
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000039config DMESG
Eric Andersenc9f20d92002-12-05 08:41:41 +000040 bool "dmesg"
41 default n
42 help
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +000043 dmesg is used to examine or control the kernel ring buffer. When the
Eric Andersena0ac4522003-02-27 03:14:04 +000044 Linux kernel prints messages to the system log, they are stored in
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +000045 the kernel ring buffer. You can use dmesg to print the kernel's ring
Eric Andersena0ac4522003-02-27 03:14:04 +000046 buffer, clear the kernel ring buffer, change the size of the kernel
47 ring buffer, and change the priority level at which kernel messages
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +000048 are also logged to the system console. Enable this option if you
Eric Andersena0ac4522003-02-27 03:14:04 +000049 wish to enable the 'dmesg' utility.
Eric Andersenc9f20d92002-12-05 08:41:41 +000050
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000051config FEATURE_DMESG_PRETTY
Denis Vlasenko4ee7cd42008-03-17 09:13:22 +000052 bool "Pretty dmesg output"
Rob Landley446129a2006-07-27 16:40:55 +000053 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000054 depends on DMESG
Rob Landley446129a2006-07-27 16:40:55 +000055 help
56 If you wish to scrub the syslog level from the output, say 'Y' here.
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +000057 The syslog level is a string prefixed to every line with the form
58 "<#>".
Rob Landley446129a2006-07-27 16:40:55 +000059
60 With this option you will see:
61 # dmesg
62 Linux version 2.6.17.4 .....
63 BIOS-provided physical RAM map:
64 BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
65
66 Without this option you will see:
67 # dmesg
68 <5>Linux version 2.6.17.4 .....
69 <6>BIOS-provided physical RAM map:
70 <6> BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
71
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000072config FBSET
Eric Andersenc9f20d92002-12-05 08:41:41 +000073 bool "fbset"
74 default n
75 help
Eric Andersena0ac4522003-02-27 03:14:04 +000076 fbset is used to show or change the settings of a Linux frame buffer
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +000077 device. The frame buffer device provides a simple and unique
78 interface to access a graphics display. Enable this option
Eric Andersen88c916b2003-10-22 09:58:56 +000079 if you wish to enable the 'fbset' utility.
Eric Andersena0ac4522003-02-27 03:14:04 +000080
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000081config FEATURE_FBSET_FANCY
Rob Landley2ec922e2006-04-13 23:22:16 +000082 bool "Turn on extra fbset options"
Eric Andersenc9f20d92002-12-05 08:41:41 +000083 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000084 depends on FBSET
Eric Andersenc9f20d92002-12-05 08:41:41 +000085 help
Eric Andersena0ac4522003-02-27 03:14:04 +000086 This option enables extended fbset options, allowing one to set the
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +000087 framebuffer size, color depth, etc. interface to access a graphics
88 display. Enable this option if you wish to enable extended fbset
Eric Andersena0ac4522003-02-27 03:14:04 +000089 options.
Eric Andersenc9f20d92002-12-05 08:41:41 +000090
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000091config FEATURE_FBSET_READMODE
Rob Landley2ec922e2006-04-13 23:22:16 +000092 bool "Turn on fbset readmode support"
Eric Andersenc9f20d92002-12-05 08:41:41 +000093 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000094 depends on FBSET
Eric Andersenc9f20d92002-12-05 08:41:41 +000095 help
Eric Andersena0ac4522003-02-27 03:14:04 +000096 This option allows fbset to read the video mode database stored by
97 default as /etc/fb.modes, which can be used to set frame buffer
98 device to pre-defined video modes.
Eric Andersenc9f20d92002-12-05 08:41:41 +000099
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000100config FDFLUSH
Eric Andersenc9f20d92002-12-05 08:41:41 +0000101 bool "fdflush"
102 default n
103 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000104 fdflush is only needed when changing media on slightly-broken
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000105 removable media drives. It is used to make Linux believe that a
Eric Andersena0ac4522003-02-27 03:14:04 +0000106 hardware disk-change switch has been actuated, which causes Linux to
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000107 forget anything it has cached from the previous media. If you have
Eric Andersena0ac4522003-02-27 03:14:04 +0000108 such a slightly-broken drive, you will need to run fdflush every time
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000109 you change a disk. Most people have working hardware and can safely
Eric Andersen88c916b2003-10-22 09:58:56 +0000110 leave this disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000111
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000112config FDFORMAT
Eric Andersen01c3d402003-07-05 07:51:31 +0000113 bool "fdformat"
114 default n
115 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000116 fdformat is used to low-level format a floppy disk.
Eric Andersen01c3d402003-07-05 07:51:31 +0000117
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000118config FDISK
Eric Andersenc9f20d92002-12-05 08:41:41 +0000119 bool "fdisk"
120 default n
121 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000122 The fdisk utility is used to divide hard disks into one or more
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000123 logical disks, which are generally called partitions. This utility
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000124 can be used to list and edit the set of partitions or BSD style
Eric Andersena0ac4522003-02-27 03:14:04 +0000125 'disk slices' that are defined on a hard drive.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000126
Eric Andersen84bdea82004-05-19 10:49:17 +0000127config FDISK_SUPPORT_LARGE_DISKS
Denis Vlasenko4ee7cd42008-03-17 09:13:22 +0000128 bool "Support over 4GB disks"
Eric Andersen84bdea82004-05-19 10:49:17 +0000129 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000130 depends on FDISK
Eric Andersen84bdea82004-05-19 10:49:17 +0000131 help
132 Enable this option to support large disks > 4GB.
133
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000134config FEATURE_FDISK_WRITABLE
Rob Landley2ec922e2006-04-13 23:22:16 +0000135 bool "Write support"
Glenn L McGrath4dcc2dd2003-01-04 11:56:06 +0000136 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000137 depends on FDISK
Glenn L McGrath4dcc2dd2003-01-04 11:56:06 +0000138 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000139 Enabling this option allows you to create or change a partition table
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000140 and write those changes out to disk. If you leave this option
Eric Andersena0ac4522003-02-27 03:14:04 +0000141 disabled, you will only be able to view the partition table.
Glenn L McGrath4dcc2dd2003-01-04 11:56:06 +0000142
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000143config FEATURE_AIX_LABEL
Rob Landley2ec922e2006-04-13 23:22:16 +0000144 bool "Support AIX disklabels"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000145 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000146 depends on FDISK && FEATURE_FDISK_WRITABLE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000147 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000148 Enabling this option allows you to create or change AIX disklabels.
149 Most people can safely leave this option disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000150
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000151config FEATURE_SGI_LABEL
Rob Landley2ec922e2006-04-13 23:22:16 +0000152 bool "Support SGI disklabels"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000153 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000154 depends on FDISK && FEATURE_FDISK_WRITABLE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000155 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000156 Enabling this option allows you to create or change SGI disklabels.
157 Most people can safely leave this option disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000158
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000159config FEATURE_SUN_LABEL
Rob Landley2ec922e2006-04-13 23:22:16 +0000160 bool "Support SUN disklabels"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000161 default n
Mike Frysinger71a6a4e2007-01-24 08:24:43 +0000162 depends on FDISK && FEATURE_FDISK_WRITABLE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000163 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000164 Enabling this option allows you to create or change SUN disklabels.
165 Most people can safely leave this option disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000166
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000167config FEATURE_OSF_LABEL
Rob Landley2ec922e2006-04-13 23:22:16 +0000168 bool "Support BSD disklabels"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000169 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000170 depends on FDISK && FEATURE_FDISK_WRITABLE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000171 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000172 Enabling this option allows you to create or change BSD disklabels
173 and define and edit BSD disk slices.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000174
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000175config FEATURE_FDISK_ADVANCED
Rob Landley2ec922e2006-04-13 23:22:16 +0000176 bool "Support expert mode"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000177 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000178 depends on FDISK && FEATURE_FDISK_WRITABLE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000179 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000180 Enabling this option allows you to do terribly unsafe things like
181 define arbitrary drive geometry, move the beginning of data in a
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000182 partition, and similarly evil things. Unless you have a very good
Eric Andersena0ac4522003-02-27 03:14:04 +0000183 reason you would be wise to leave this disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000184
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000185config FINDFS
186 bool "findfs"
187 default n
188 select VOLUMEID
189 help
Denis Vlasenko22d10a02008-10-13 08:53:43 +0000190 Prints the name of a filesystem with given label or UUID.
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000191 WARNING:
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000192 With all submodules selected, it will add ~8k to busybox.
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000193
Timo Teras892d4b62010-03-18 22:45:35 +0100194config FLOCK
195 bool "flock"
Denys Vlasenko4f0408b2010-03-21 19:12:03 +0100196 default n
Timo Teras892d4b62010-03-18 22:45:35 +0100197 help
198 Manage locks from shell scripts
199
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000200config FREERAMDISK
Eric Andersenc9f20d92002-12-05 08:41:41 +0000201 bool "freeramdisk"
202 default n
203 help
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000204 Linux allows you to create ramdisks. This utility allows you to
Eric Andersena0ac4522003-02-27 03:14:04 +0000205 delete them and completely free all memory that was used for the
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000206 ramdisk. For example, if you boot Linux into a ramdisk and later
Eric Andersena0ac4522003-02-27 03:14:04 +0000207 pivot_root, you may want to free the memory that is allocated to the
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000208 ramdisk. If you have no use for freeing memory from a ramdisk, leave
Eric Andersena0ac4522003-02-27 03:14:04 +0000209 this disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000210
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000211config FSCK_MINIX
Eric Andersenc9f20d92002-12-05 08:41:41 +0000212 bool "fsck_minix"
213 default n
214 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000215 The minix filesystem is a nice, small, compact, read-write filesystem
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000216 with little overhead. It is not a journaling filesystem however and
Eric Andersen88c916b2003-10-22 09:58:56 +0000217 can experience corruption if it is not properly unmounted or if the
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000218 power goes off in the middle of a write. This utility allows you to
Eric Andersena0ac4522003-02-27 03:14:04 +0000219 check for and attempt to repair any corruption that occurs to a minix
220 filesystem.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000221
Vladimir Dronnikov0d8ea642009-11-02 10:41:46 +0100222config MKFS_EXT2
223 bool "mkfs_ext2"
224 default n
225 help
226 Utility to create EXT2 filesystems.
227
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000228config MKFS_MINIX
Eric Andersenc9f20d92002-12-05 08:41:41 +0000229 bool "mkfs_minix"
230 default n
231 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000232 The minix filesystem is a nice, small, compact, read-write filesystem
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000233 with little overhead. If you wish to be able to create minix
234 filesystems this utility will do the job for you.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000235
236comment "Minix filesystem support"
Mike Frysinger71a6a4e2007-01-24 08:24:43 +0000237 depends on FSCK_MINIX || MKFS_MINIX
Eric Andersenc9f20d92002-12-05 08:41:41 +0000238
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000239config FEATURE_MINIX2
Rob Landley2ec922e2006-04-13 23:22:16 +0000240 bool "Support Minix fs v2 (fsck_minix/mkfs_minix)"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000241 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000242 depends on FSCK_MINIX || MKFS_MINIX
Eric Andersenc9f20d92002-12-05 08:41:41 +0000243 help
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000244 If you wish to be able to create version 2 minix filesystems, enable
245 this. If you enabled 'mkfs_minix' then you almost certainly want to
246 be using the version 2 filesystem support.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000247
Vladimir Dronnikov0d8ea642009-11-02 10:41:46 +0100248config MKFS_REISER
249 bool "mkfs_reiser"
250 default n
251 help
252 Utility to create ReiserFS filesystems.
253
Denis Vlasenko9d04b6b2009-03-28 02:13:01 +0000254config MKFS_VFAT
255 bool "mkfs_vfat"
256 default n
257 help
258 Utility to create FAT32 filesystems.
259
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000260config GETOPT
Eric Andersenc9f20d92002-12-05 08:41:41 +0000261 bool "getopt"
262 default n
263 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000264 The getopt utility is used to break up (parse) options in command
265 lines to make it easy to write complex shell scripts that also check
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000266 for legal (and illegal) options. If you want to write horribly
Eric Andersena0ac4522003-02-27 03:14:04 +0000267 complex shell scripts, or use some horribly complex shell script
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000268 written by others, this utility may be for you. Most people will
Eric Andersena0ac4522003-02-27 03:14:04 +0000269 wisely leave this disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000270
Denys Vlasenkof3b92d32009-06-19 12:10:38 +0200271config FEATURE_GETOPT_LONG
272 bool "Support option -l"
273 default y if LONG_OPTS
Denys Vlasenkob22bbff2009-07-04 16:50:43 +0200274 depends on GETOPT
Denys Vlasenkof3b92d32009-06-19 12:10:38 +0200275 help
Denys Vlasenkob22bbff2009-07-04 16:50:43 +0200276 Enable support for long options (option -l).
Denys Vlasenkof3b92d32009-06-19 12:10:38 +0200277
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000278config HEXDUMP
Eric Andersenc9f20d92002-12-05 08:41:41 +0000279 bool "hexdump"
280 default n
281 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000282 The hexdump utility is used to display binary data in a readable
283 way that is comparable to the output from most hex editors.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000284
Denis Vlasenkofbe5f392007-11-18 05:36:50 +0000285config FEATURE_HEXDUMP_REVERSE
286 bool "Support -R, reverse of 'hexdump -Cv'"
287 default n
288 depends on HEXDUMP
289 help
290 The hexdump utility is used to display binary data in an ascii
291 readable way. This option creates binary data from an ascii input.
292 NB: this option is non-standard. It's unwise to use it in scripts
293 aimed to be portable.
294
Denis Vlasenko4ee7cd42008-03-17 09:13:22 +0000295config HD
296 bool "hd"
297 default n
298 select HEXDUMP
299 help
300 hd is an alias to hexdump -C.
301
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000302config HWCLOCK
Eric Andersenc9f20d92002-12-05 08:41:41 +0000303 bool "hwclock"
304 default n
305 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000306 The hwclock utility is used to read and set the hardware clock
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000307 on a system. This is primarily used to set the current time on
Eric Andersen88c916b2003-10-22 09:58:56 +0000308 shutdown in the hardware clock, so the hardware will keep the
309 correct time when Linux is _not_ running.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000310
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000311config FEATURE_HWCLOCK_LONG_OPTIONS
Rob Landley2ec922e2006-04-13 23:22:16 +0000312 bool "Support long options (--hctosys,...)"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000313 default n
Denys Vlasenkof3b92d32009-06-19 12:10:38 +0200314 depends on HWCLOCK && LONG_OPTS
Eric Andersenc9f20d92002-12-05 08:41:41 +0000315 help
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000316 By default, the hwclock utility only uses short options. If you
Eric Andersen88c916b2003-10-22 09:58:56 +0000317 are overly fond of its long options, such as --hctosys, --utc, etc)
Eric Andersena0ac4522003-02-27 03:14:04 +0000318 then enable this option.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000319
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000320config FEATURE_HWCLOCK_ADJTIME_FHS
Rob Landley2ec922e2006-04-13 23:22:16 +0000321 bool "Use FHS /var/lib/hwclock/adjtime"
Mike Frysinger747fc5d2005-09-28 03:21:21 +0000322 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000323 depends on HWCLOCK
Mike Frysinger747fc5d2005-09-28 03:21:21 +0000324 help
325 Starting with FHS 2.3, the adjtime state file is supposed to exist
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000326 at /var/lib/hwclock/adjtime instead of /etc/adjtime. If you wish
Mike Frysinger747fc5d2005-09-28 03:21:21 +0000327 to use the FHS behavior, answer Y here, otherwise answer N for the
328 classic /etc/adjtime path.
329
Bernhard Reutner-Fischere99a92d2008-07-22 18:32:06 +0000330 pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO
Mike Frysinger747fc5d2005-09-28 03:21:21 +0000331
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000332config IPCRM
Rob Landley6eb1e412005-06-20 04:30:36 +0000333 bool "ipcrm"
334 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000335 select FEATURE_SUID
Rob Landley6eb1e412005-06-20 04:30:36 +0000336 help
337 The ipcrm utility allows the removal of System V interprocess
338 communication (IPC) objects and the associated data structures
339 from the system.
340
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000341config IPCS
Rob Landley6eb1e412005-06-20 04:30:36 +0000342 bool "ipcs"
343 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000344 select FEATURE_SUID
Rob Landley6eb1e412005-06-20 04:30:36 +0000345 help
346 The ipcs utility is used to provide information on the currently
347 allocated System V interprocess (IPC) objects in the system.
348
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000349config LOSETUP
Mike Frysinger75aa1922005-09-24 23:12:38 +0000350 bool "losetup"
351 default n
352 help
353 losetup is used to associate or detach a loop device with a regular
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000354 file or block device, and to query the status of a loop device. This
Mike Frysinger75aa1922005-09-24 23:12:38 +0000355 version does not currently support enabling data encryption.
356
Souf Oued982bc712009-12-05 17:56:25 +0100357config LSPCI
358 bool "lspci"
359 default n
360 help
361 lspci is a utility for displaying information about PCI buses in the
362 system and devices connected to them.
363
364 This version uses sysfs (/sys/bus/pci/devices) only.
365
Souf Oued11a802a2009-12-07 01:37:34 +0100366config LSUSB
367 bool "lsusb"
368 default n
369 help
370 lsusb is a utility for displaying information about USB buses in the
371 system and devices connected to them.
372
373 This version uses sysfs (/sys/bus/usb/devices) only.
374
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000375config MDEV
Rob Landley70f7ef72005-12-13 08:21:33 +0000376 bool "mdev"
377 default n
378 help
Mike Frysingerae302102007-02-14 13:20:29 +0000379 mdev is a mini-udev implementation for dynamically creating device
380 nodes in the /dev directory.
381
382 For more information, please see docs/mdev.txt
Rob Landley70f7ef72005-12-13 08:21:33 +0000383
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000384config FEATURE_MDEV_CONF
Rob Landley2ec922e2006-04-13 23:22:16 +0000385 bool "Support /etc/mdev.conf"
Rob Landley70f7ef72005-12-13 08:21:33 +0000386 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000387 depends on MDEV
Rob Landley70f7ef72005-12-13 08:21:33 +0000388 help
Mike Frysingerae302102007-02-14 13:20:29 +0000389 Add support for the mdev config file to control ownership and
390 permissions of the device nodes.
Rob Landley70f7ef72005-12-13 08:21:33 +0000391
Mike Frysingerae302102007-02-14 13:20:29 +0000392 For more information, please see docs/mdev.txt
Rob Landley70f7ef72005-12-13 08:21:33 +0000393
Mike Frysingerf0044c42008-02-01 06:53:50 +0000394config FEATURE_MDEV_RENAME
395 bool "Support subdirs/symlinks"
396 default n
397 depends on FEATURE_MDEV_CONF
398 help
399 Add support for renaming devices and creating symlinks.
400
401 For more information, please see docs/mdev.txt
402
Denis Vlasenkof2f38682008-03-29 17:26:10 +0000403config FEATURE_MDEV_RENAME_REGEXP
404 bool "Support regular expressions substitutions when renaming device"
405 default n
406 depends on FEATURE_MDEV_RENAME
407 help
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000408 Add support for regular expressions substitutions when renaming
409 device.
Denis Vlasenkof2f38682008-03-29 17:26:10 +0000410
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000411config FEATURE_MDEV_EXEC
Rob Landleyef10d522006-06-26 14:11:33 +0000412 bool "Support command execution at device addition/removal"
413 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000414 depends on FEATURE_MDEV_CONF
Rob Landleyef10d522006-06-26 14:11:33 +0000415 help
Mike Frysingerae302102007-02-14 13:20:29 +0000416 This adds support for an optional field to /etc/mdev.conf for
417 executing commands when devices are created/removed.
Rob Landleyef10d522006-06-26 14:11:33 +0000418
Mike Frysingerae302102007-02-14 13:20:29 +0000419 For more information, please see docs/mdev.txt
Rob Landleyef10d522006-06-26 14:11:33 +0000420
Mike Frysingera78ef2c2007-06-13 07:34:15 +0000421config FEATURE_MDEV_LOAD_FIRMWARE
422 bool "Support loading of firmwares"
423 default n
424 depends on MDEV
425 help
426 Some devices need to load firmware before they can be usable.
427
428 These devices will request userspace look up the files in
429 /lib/firmware/ and if it exists, send it to the kernel for
430 loading into the hardware.
431
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000432config MKSWAP
Eric Andersenc9f20d92002-12-05 08:41:41 +0000433 bool "mkswap"
434 default n
435 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000436 The mkswap utility is used to configure a file or disk partition as
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000437 Linux swap space. This allows Linux to use the entire file or
Eric Andersena0ac4522003-02-27 03:14:04 +0000438 partition as if it were additional RAM, which can greatly increase
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000439 the capability of low-memory machines. This additional memory is
Eric Andersena0ac4522003-02-27 03:14:04 +0000440 much slower than real RAM, but can be very helpful at preventing your
Eric Andersen88c916b2003-10-22 09:58:56 +0000441 applications being killed by the Linux out of memory (OOM) killer.
442 Once you have created swap space using 'mkswap' you need to enable
443 the swap space using the 'swapon' utility.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000444
Denys Vlasenkobeca96f2009-06-19 13:14:48 +0200445config FEATURE_MKSWAP_UUID
446 bool "UUID support"
447 default n
448 depends on MKSWAP
449 help
450 Generate swap spaces with universally unique identifiers.
451
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000452config MORE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000453 bool "more"
454 default n
455 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000456 more is a simple utility which allows you to read text one screen
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000457 sized page at a time. If you want to read text that is larger than
Eric Andersena0ac4522003-02-27 03:14:04 +0000458 the screen, and you are using anything faster than a 300 baud modem,
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000459 you will probably find this utility very helpful. If you don't have
Eric Andersena0ac4522003-02-27 03:14:04 +0000460 any need to reading text files, you can leave this disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000461
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000462config FEATURE_USE_TERMIOS
Rob Landley2ec922e2006-04-13 23:22:16 +0000463 bool "Use termios to manipulate the screen"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000464 default y
Paul Fox9e1f92d2008-03-20 16:04:36 +0000465 depends on MORE || TOP
Eric Andersenc9f20d92002-12-05 08:41:41 +0000466 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000467 This option allows utilities such as 'more' and 'top' to determine
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000468 the size of the screen. If you leave this disabled, your utilities
Eric Andersen88c916b2003-10-22 09:58:56 +0000469 that display things on the screen will be especially primitive and
Eric Andersena0ac4522003-02-27 03:14:04 +0000470 will be unable to determine the current screen size, and will be
471 unable to move the cursor.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000472
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000473config VOLUMEID
Denis Vlasenko35a064b2008-11-06 00:49:59 +0000474 bool #No description makes it a hidden option
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000475 default n
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000476
477config FEATURE_VOLUMEID_EXT
478 bool "Ext filesystem"
479 default n
480 depends on VOLUMEID
481 help
482 TODO
483
Vladimir Dronnikov662e8b72009-11-01 23:05:09 +0100484config FEATURE_VOLUMEID_BTRFS
485 bool "btrfs filesystem"
486 default n
487 depends on VOLUMEID
488 help
489 TODO
490
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000491config FEATURE_VOLUMEID_REISERFS
492 bool "Reiser filesystem"
493 default n
494 depends on VOLUMEID
495 help
496 TODO
497
498config FEATURE_VOLUMEID_FAT
499 bool "fat filesystem"
500 default n
501 depends on VOLUMEID
502 help
503 TODO
504
505config FEATURE_VOLUMEID_HFS
506 bool "hfs filesystem"
507 default n
508 depends on VOLUMEID
509 help
510 TODO
511
512config FEATURE_VOLUMEID_JFS
513 bool "jfs filesystem"
514 default n
515 depends on VOLUMEID
516 help
517 TODO
518
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000519### config FEATURE_VOLUMEID_UFS
520### bool "ufs filesystem"
521### default n
522### depends on VOLUMEID
523### help
524### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000525
526config FEATURE_VOLUMEID_XFS
527 bool "xfs filesystem"
528 default n
529 depends on VOLUMEID
530 help
531 TODO
532
533config FEATURE_VOLUMEID_NTFS
534 bool "ntfs filesystem"
535 default n
536 depends on VOLUMEID
537 help
538 TODO
539
540config FEATURE_VOLUMEID_ISO9660
541 bool "iso9660 filesystem"
542 default n
543 depends on VOLUMEID
544 help
545 TODO
546
547config FEATURE_VOLUMEID_UDF
548 bool "udf filesystem"
549 default n
550 depends on VOLUMEID
551 help
552 TODO
553
554config FEATURE_VOLUMEID_LUKS
555 bool "luks filesystem"
556 default n
557 depends on VOLUMEID
558 help
559 TODO
560
561config FEATURE_VOLUMEID_LINUXSWAP
562 bool "linux swap filesystem"
563 default n
564 depends on VOLUMEID
565 help
566 TODO
567
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000568### config FEATURE_VOLUMEID_LVM
569### bool "lvm"
570### default n
571### depends on VOLUMEID
572### help
573### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000574
575config FEATURE_VOLUMEID_CRAMFS
576 bool "cramfs filesystem"
577 default n
578 depends on VOLUMEID
579 help
580 TODO
581
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000582### config FEATURE_VOLUMEID_HPFS
583### bool "hpfs filesystem"
584### default n
585### depends on VOLUMEID
586### help
587### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000588
589config FEATURE_VOLUMEID_ROMFS
590 bool "romfs filesystem"
591 default n
592 depends on VOLUMEID
593 help
594 TODO
595
596config FEATURE_VOLUMEID_SYSV
597 bool "sysv filesystem"
598 default n
599 depends on VOLUMEID
600 help
601 TODO
602
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000603### config FEATURE_VOLUMEID_MINIX
604### bool "minix filesystem"
605### default n
606### depends on VOLUMEID
607### help
608### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000609
Denis Vlasenkoc5b73722008-03-17 09:21:26 +0000610### These only detect partition tables - not used (yet?)
611### config FEATURE_VOLUMEID_MAC
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000612### bool "mac filesystem"
613### default n
614### depends on VOLUMEID
615### help
616### TODO
Denis Vlasenko1f228982008-04-22 00:16:29 +0000617###
Denis Vlasenkoc5b73722008-03-17 09:21:26 +0000618### config FEATURE_VOLUMEID_MSDOS
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000619### bool "msdos filesystem"
620### default n
621### depends on VOLUMEID
622### help
623### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000624
625config FEATURE_VOLUMEID_OCFS2
626 bool "ocfs2 filesystem"
627 default n
628 depends on VOLUMEID
629 help
630 TODO
631
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000632### config FEATURE_VOLUMEID_HIGHPOINTRAID
633### bool "highpoint raid"
634### default n
635### depends on VOLUMEID
636### help
637### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000638
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000639### config FEATURE_VOLUMEID_ISWRAID
640### bool "intel raid"
641### default n
642### depends on VOLUMEID
643### help
644### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000645
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000646### config FEATURE_VOLUMEID_LSIRAID
647### bool "lsi raid"
648### default n
649### depends on VOLUMEID
650### help
651### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000652
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000653### config FEATURE_VOLUMEID_VIARAID
654### bool "via raid"
655### default n
656### depends on VOLUMEID
657### help
658### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000659
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000660### config FEATURE_VOLUMEID_SILICONRAID
661### bool "silicon raid"
662### default n
663### depends on VOLUMEID
664### help
665### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000666
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000667### config FEATURE_VOLUMEID_NVIDIARAID
668### bool "nvidia raid"
669### default n
670### depends on VOLUMEID
671### help
672### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000673
Denis Vlasenkod25c33f2008-03-17 09:25:05 +0000674### config FEATURE_VOLUMEID_PROMISERAID
675### bool "promise raid"
676### default n
677### depends on VOLUMEID
678### help
679### TODO
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000680
681config FEATURE_VOLUMEID_LINUXRAID
682 bool "linuxraid"
683 default n
684 depends on VOLUMEID
685 help
686 TODO
687
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000688config MOUNT
Mike Frysinger55092282006-02-02 23:14:57 +0000689 bool "mount"
690 default n
691 help
692 All files and filesystems in Unix are arranged into one big directory
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000693 tree. The 'mount' utility is used to graft a filesystem onto a
694 particular part of the tree. A filesystem can either live on a block
Mike Frysinger55092282006-02-02 23:14:57 +0000695 device, or it can be accessible over the network, as is the case with
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000696 NFS filesystems. Most people using BusyBox will also want to enable
Mike Frysinger55092282006-02-02 23:14:57 +0000697 the 'mount' utility.
698
Denis Vlasenkob1d8e7d2008-02-16 23:28:42 +0000699config FEATURE_MOUNT_FAKE
Denis Vlasenko4ee7cd42008-03-17 09:13:22 +0000700 bool "Support option -f"
Denis Vlasenkob1d8e7d2008-02-16 23:28:42 +0000701 default n
702 depends on MOUNT
703 help
704 Enable support for faking a file system mount.
705
Denis Vlasenkof732e962008-02-18 12:07:49 +0000706config FEATURE_MOUNT_VERBOSE
Denis Vlasenko4ee7cd42008-03-17 09:13:22 +0000707 bool "Support option -v"
Denis Vlasenkof732e962008-02-18 12:07:49 +0000708 default n
709 depends on MOUNT
710 help
711 Enable multi-level -v[vv...] verbose messages. Useful if you
712 debug mount problems and want to see what is exactly passed
713 to the kernel.
714
Denis Vlasenko2535f122007-09-15 13:28:30 +0000715config FEATURE_MOUNT_HELPERS
716 bool "Support mount helpers"
717 default n
718 depends on MOUNT
719 help
720 Enable mounting of virtual file systems via external helpers.
Denis Vlasenko32d49bc2008-02-03 23:52:41 +0000721 E.g. "mount obexfs#-b00.11.22.33.44.55 /mnt" will in effect call
722 "obexfs -b00.11.22.33.44.55 /mnt"
723 Also "mount -t sometype [-o opts] fs /mnt" will try
724 "sometype [-o opts] fs /mnt" if simple mount syscall fails.
725 The idea is to use such virtual filesystems in /etc/fstab.
Denis Vlasenko2535f122007-09-15 13:28:30 +0000726
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000727config FEATURE_MOUNT_LABEL
Denis Vlasenko4ee7cd42008-03-17 09:13:22 +0000728 bool "Support specifiying devices by label or UUID"
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000729 default n
730 depends on MOUNT
Denis Vlasenko4824cca2008-03-21 18:29:01 +0000731 select VOLUMEID
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000732 help
733 This allows for specifying a device by label or uuid, rather than by
Denis Vlasenko1e19afd2008-10-12 11:20:08 +0000734 name. This feature utilizes the same functionality as blkid/findfs.
Natanael Copa9aff2992009-09-20 04:28:22 +0200735 This also enables label or uuid support for swapon.
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000736
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000737config FEATURE_MOUNT_NFS
Rob Landley2ec922e2006-04-13 23:22:16 +0000738 bool "Support mounting NFS file systems"
Mike Frysinger55092282006-02-02 23:14:57 +0000739 default n
Denis Vlasenkoa7825f22007-06-16 13:56:51 +0000740 depends on MOUNT
741 select FEATURE_HAVE_RPC
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000742 select FEATURE_SYSLOG
Mike Frysinger55092282006-02-02 23:14:57 +0000743 help
Rob Landleye3781b72006-08-08 01:39:49 +0000744 Enable mounting of NFS file systems.
745
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000746config FEATURE_MOUNT_CIFS
Rob Landley89d9d4d2006-09-01 08:10:44 +0000747 bool "Support mounting CIFS/SMB file systems"
748 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000749 depends on MOUNT
Rob Landley89d9d4d2006-09-01 08:10:44 +0000750 help
751 Enable support for samba mounts.
Denis Vlasenko39e93cc2006-09-10 18:38:17 +0000752
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000753config FEATURE_MOUNT_FLAGS
754 depends on MOUNT
Denis Vlasenko39e93cc2006-09-10 18:38:17 +0000755 bool "Support lots of -o flags in mount"
Rob Landleye3781b72006-08-08 01:39:49 +0000756 default y
757 help
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000758 Without this, mount only supports ro/rw/remount. With this, it
Rob Landleye3781b72006-08-08 01:39:49 +0000759 supports nosuid, suid, dev, nodev, exec, noexec, sync, async, atime,
760 noatime, diratime, nodiratime, loud, bind, move, shared, slave,
761 private, unbindable, rshared, rslave, rprivate, and runbindable.
762
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000763config FEATURE_MOUNT_FSTAB
764 depends on MOUNT
Rob Landleye3781b72006-08-08 01:39:49 +0000765 bool "Support /etc/fstab and -a"
766 default y
767 help
768 Support mount all and looking for files in /etc/fstab.
Mike Frysinger55092282006-02-02 23:14:57 +0000769
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000770config PIVOT_ROOT
Eric Andersenc9f20d92002-12-05 08:41:41 +0000771 bool "pivot_root"
772 default n
773 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000774 The pivot_root utility swaps the mount points for the root filesystem
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000775 with some other mounted filesystem. This allows you to do all sorts
Eric Andersena0ac4522003-02-27 03:14:04 +0000776 of wild and crazy things with your Linux system and is far more
777 powerful than 'chroot'.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000778
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000779 Note: This is for initrd in linux 2.4. Under initramfs (introduced
Rob Landley0f34a822005-10-27 22:55:50 +0000780 in linux 2.6) use switch_root instead.
781
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000782config RDATE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000783 bool "rdate"
784 default n
785 help
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000786 The rdate utility allows you to synchronize the date and time of your
Eric Andersena0ac4522003-02-27 03:14:04 +0000787 system clock with the date and time of a remote networked system using
788 the RFC868 protocol, which is built into the inetd daemon on most
789 systems.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000790
Bernhard Reutner-Fischerc77e8432008-08-19 11:28:52 +0000791config RDEV
Denys Vlasenko345e0932010-03-31 16:03:56 +0200792 bool "rdev"
793 default n
794 help
Bernhard Reutner-Fischerc77e8432008-08-19 11:28:52 +0000795 Print the device node associated with the filesystem mounted at '/'.
796
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000797config READPROFILE
Mike Frysinger75aa1922005-09-24 23:12:38 +0000798 bool "readprofile"
799 default n
800 help
801 This allows you to parse /proc/profile for basic profiling.
802
Mike Frysinger6b160e42008-02-15 02:27:19 +0000803config RTCWAKE
804 bool "rtcwake"
805 default n
806 help
807 Enter a system sleep state until specified wakeup time.
808
Denis Vlasenko376003b2008-04-21 05:05:17 +0000809config SCRIPT
810 bool "script"
811 default n
812 help
813 The script makes typescript of terminal session.
814
Denys Vlasenko5e611152009-05-19 17:36:16 +0200815config SCRIPTREPLAY
816 bool "scriptreplay"
817 default n
818 help
819 This program replays a typescript, using timing information
820 given by script -t.
821
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000822config SETARCH
Mike Frysinger0a6b0bf2006-02-21 04:26:52 +0000823 bool "setarch"
824 default n
825 help
826 The linux32 utility is used to create a 32bit environment for the
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000827 specified program (usually a shell). It only makes sense to have
Mike Frysinger0a6b0bf2006-02-21 04:26:52 +0000828 this util on a system that supports both 64bit and 32bit userland
829 (like amd64/x86, ppc64/ppc, sparc64/sparc, etc...).
830
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000831config SWAPONOFF
Eric Andersenc9f20d92002-12-05 08:41:41 +0000832 bool "swaponoff"
833 default n
834 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000835 This option enables both the 'swapon' and the 'swapoff' utilities.
836 Once you have created some swap space using 'mkswap', you also need
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000837 to enable your swap space with the 'swapon' utility. The 'swapoff'
Eric Andersena0ac4522003-02-27 03:14:04 +0000838 utility is used, typically at system shutdown, to disable any swap
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000839 space. If you are not using any swap space, you can leave this
Eric Andersena0ac4522003-02-27 03:14:04 +0000840 option disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000841
Denis Vlasenkoee56e012008-05-18 23:05:34 +0000842config FEATURE_SWAPON_PRI
Bernhard Reutner-Fischer3576bed2008-05-19 08:25:23 +0000843 bool "Support priority option -p"
Denis Vlasenkoee56e012008-05-18 23:05:34 +0000844 default n
845 depends on SWAPONOFF
846 help
847 Enable support for setting swap device priority in swapon.
848
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000849config SWITCH_ROOT
Mike Frysinger55092282006-02-02 23:14:57 +0000850 bool "switch_root"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000851 default n
852 help
Mike Frysinger55092282006-02-02 23:14:57 +0000853 The switch_root utility is used from initramfs to select a new
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000854 root device. Under initramfs, you have to use this instead of
855 pivot_root. (Stop reading here if you don't care why.)
Eric Andersenc9f20d92002-12-05 08:41:41 +0000856
Mike Frysinger55092282006-02-02 23:14:57 +0000857 Booting with initramfs extracts a gzipped cpio archive into rootfs
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000858 (which is a variant of ramfs/tmpfs). Because rootfs can't be moved
859 or unmounted*, pivot_root will not work from initramfs. Instead,
Mike Frysinger55092282006-02-02 23:14:57 +0000860 switch_root deletes everything out of rootfs (including itself),
861 does a mount --move that overmounts rootfs with the new root, and
862 then execs the specified init program.
863
864 * Because the Linux kernel uses rootfs internally as the starting
865 and ending point for searching through the kernel's doubly linked
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000866 list of active mount points. That's why.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000867
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000868config UMOUNT
Eric Andersenc9f20d92002-12-05 08:41:41 +0000869 bool "umount"
870 default n
871 help
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000872 When you want to remove a mounted filesystem from its current mount
873 point, for example when you are shutting down the system, the
874 'umount' utility is the tool to use. If you enabled the 'mount'
875 utility, you almost certainly also want to enable 'umount'.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000876
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000877config FEATURE_UMOUNT_ALL
Denis Vlasenko4ee7cd42008-03-17 09:13:22 +0000878 bool "Support option -a"
Rob Landleycc6d8d32006-02-08 20:06:57 +0000879 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000880 depends on UMOUNT
Rob Landleycc6d8d32006-02-08 20:06:57 +0000881 help
882 Support -a option to unmount all currently mounted filesystems.
883
Eric Andersenc9f20d92002-12-05 08:41:41 +0000884comment "Common options for mount/umount"
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000885 depends on MOUNT || UMOUNT
Eric Andersenc9f20d92002-12-05 08:41:41 +0000886
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000887config FEATURE_MOUNT_LOOP
Rob Landley2ec922e2006-04-13 23:22:16 +0000888 bool "Support loopback mounts"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000889 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000890 depends on MOUNT || UMOUNT
Eric Andersenc9f20d92002-12-05 08:41:41 +0000891 help
Rob Landley6a6798b2005-08-10 20:35:54 +0000892 Enabling this feature allows automatic mounting of files (containing
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000893 filesystem images) via the linux kernel's loopback devices.
894 The mount command will detect you are trying to mount a file instead
895 of a block device, and transparently associate the file with a
896 loopback device. The umount command will also free that loopback
897 device.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000898
Rob Landley6a6798b2005-08-10 20:35:54 +0000899 You can still use the 'losetup' utility (to manually associate files
Mike Frysinger71a6a4e2007-01-24 08:24:43 +0000900 with loop devices) if you need to do something advanced, such as
Rob Landley6a6798b2005-08-10 20:35:54 +0000901 specify an offset or cryptographic options to the loopback device.
902 (If you don't want umount to free the loop device, use "umount -D".)
Paul Fox3f6f3172005-07-19 20:55:37 +0000903
Lauri Kasanen375a8ef2010-04-14 12:31:26 -0700904config FEATURE_MOUNT_LOOP_CREATE
905 bool "Create new loopback devices if needed"
906 default n
907 depends on FEATURE_MOUNT_LOOP
908 help
909 Linux kernels >= 2.6.24 support unlimited loopback devices. They are
910 allocated for use when trying to use a loop device. The loop device
911 must however exist.
912
913 This feature lets mount to try to create next /dev/loopN device
914 if it does not find a free one.
915
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000916config FEATURE_MTAB_SUPPORT
Rob Landley2ec922e2006-04-13 23:22:16 +0000917 bool "Support for the old /etc/mtab file"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000918 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000919 depends on MOUNT || UMOUNT
Denis Vlasenkob1d8e7d2008-02-16 23:28:42 +0000920 select FEATURE_MOUNT_FAKE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000921 help
Rob Landley6a6798b2005-08-10 20:35:54 +0000922 Historically, Unix systems kept track of the currently mounted
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000923 partitions in the file "/etc/mtab". These days, the kernel exports
Rob Landley6a6798b2005-08-10 20:35:54 +0000924 the list of currently mounted partitions in "/proc/mounts", rendering
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000925 the old mtab file obsolete. (In modern systems, /etc/mtab should be
Rob Landley6a6798b2005-08-10 20:35:54 +0000926 a symlink to /proc/mounts.)
Eric Andersena0ac4522003-02-27 03:14:04 +0000927
Rob Landley6a6798b2005-08-10 20:35:54 +0000928 The only reason to have mount maintain an /etc/mtab file itself is if
929 your stripped-down embedded system does not have a /proc directory.
930 If you must use this, keep in mind it's inherently brittle (for
931 example a mount under chroot won't update it), can't handle modern
932 features like separate per-process filesystem namespaces, requires
933 that your /etc directory be writeable, tends to get easily confused
Rob Landley17507fa2006-05-08 02:22:24 +0000934 by --bind or --move mounts, won't update if you rename a directory
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000935 that contains a mount point, and so on. (In brief: avoid.)
Rob Landley17507fa2006-05-08 02:22:24 +0000936
937 About the only reason to use this is if you've removed /proc from
938 your kernel.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000939
Eric Andersenc9f20d92002-12-05 08:41:41 +0000940endmenu