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gerrit.nordix.org / codeaurora / busybox / de7684a309ad20c1b889d048d741cb1dd52245f7 / . / util-linux / Config.in
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Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]1#
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 Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]8config DMESG
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]9 bool "dmesg"
10 default n
11 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]12 dmesg is used to examine or control the kernel ring buffer. When the
13 Linux kernel prints messages to the system log, they are stored in
14 the kernel ring buffer. You can use dmesg to print the kernel's ring
15 buffer, clear the kernel ring buffer, change the size of the kernel
16 ring buffer, and change the priority level at which kernel messages
17 are also logged to the system console. Enable this option if you
18 wish to enable the 'dmesg' utility.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]19
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]20config FEATURE_DMESG_PRETTY
Rob Landley446129a2006-07-27 16:40:55 +0000[diff] [blame]21 bool "pretty dmesg output"
22 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]23 depends on DMESG
Rob Landley446129a2006-07-27 16:40:55 +0000[diff] [blame]24 help
25 If you wish to scrub the syslog level from the output, say 'Y' here.
26 The syslog level is a string prefixed to every line with the form "<#>".
27
28 With this option you will see:
29 # dmesg
30 Linux version 2.6.17.4 .....
31 BIOS-provided physical RAM map:
32 BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
33
34 Without this option you will see:
35 # dmesg
36 <5>Linux version 2.6.17.4 .....
37 <6>BIOS-provided physical RAM map:
38 <6> BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
39
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]40config FBSET
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]41 bool "fbset"
42 default n
43 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]44 fbset is used to show or change the settings of a Linux frame buffer
45 device. The frame buffer device provides a simple and unique
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]46 interface to access a graphics display. Enable this option
47 if you wish to enable the 'fbset' utility.
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]48
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]49config FEATURE_FBSET_FANCY
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]50 bool "Turn on extra fbset options"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]51 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]52 depends on FBSET
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]53 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]54 This option enables extended fbset options, allowing one to set the
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]55 framebuffer size, color depth, etc. interface to access a graphics
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]56 display. Enable this option if you wish to enable extended fbset
57 options.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]58
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]59config FEATURE_FBSET_READMODE
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]60 bool "Turn on fbset readmode support"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]61 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]62 depends on FBSET
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]63 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]64 This option allows fbset to read the video mode database stored by
65 default as /etc/fb.modes, which can be used to set frame buffer
66 device to pre-defined video modes.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]67
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]68config FDFLUSH
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]69 bool "fdflush"
70 default n
71 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]72 fdflush is only needed when changing media on slightly-broken
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]73 removable media drives. It is used to make Linux believe that a
74 hardware disk-change switch has been actuated, which causes Linux to
75 forget anything it has cached from the previous media. If you have
76 such a slightly-broken drive, you will need to run fdflush every time
77 you change a disk. Most people have working hardware and can safely
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]78 leave this disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]79
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]80config FDFORMAT
Eric Andersen01c3d402003-07-05 07:51:31 +0000[diff] [blame]81 bool "fdformat"
82 default n
83 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]84 fdformat is used to low-level format a floppy disk.
Eric Andersen01c3d402003-07-05 07:51:31 +0000[diff] [blame]85
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]86config FDISK
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]87 bool "fdisk"
88 default n
89 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]90 The fdisk utility is used to divide hard disks into one or more
91 logical disks, which are generally called partitions. This utility
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000[diff] [blame]92 can be used to list and edit the set of partitions or BSD style
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]93 'disk slices' that are defined on a hard drive.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]94
Eric Andersen84bdea82004-05-19 10:49:17 +0000[diff] [blame]95config FDISK_SUPPORT_LARGE_DISKS
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]96 bool "support over 4GB disks"
Eric Andersen84bdea82004-05-19 10:49:17 +0000[diff] [blame]97 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]98 depends on FDISK
Eric Andersen84bdea82004-05-19 10:49:17 +0000[diff] [blame]99 help
100 Enable this option to support large disks > 4GB.
101
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]102config FEATURE_FDISK_WRITABLE
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]103 bool "Write support"
Glenn L McGrath4dcc2dd2003-01-04 11:56:06 +0000[diff] [blame]104 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]105 depends on FDISK
Glenn L McGrath4dcc2dd2003-01-04 11:56:06 +0000[diff] [blame]106 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]107 Enabling this option allows you to create or change a partition table
108 and write those changes out to disk. If you leave this option
109 disabled, you will only be able to view the partition table.
Glenn L McGrath4dcc2dd2003-01-04 11:56:06 +0000[diff] [blame]110
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]111config FEATURE_AIX_LABEL
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]112 bool "Support AIX disklabels"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]113 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]114 depends on FDISK && FEATURE_FDISK_WRITABLE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]115 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]116 Enabling this option allows you to create or change AIX disklabels.
117 Most people can safely leave this option disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]118
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]119config FEATURE_SGI_LABEL
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]120 bool "Support SGI disklabels"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]121 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]122 depends on FDISK && FEATURE_FDISK_WRITABLE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]123 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]124 Enabling this option allows you to create or change SGI disklabels.
125 Most people can safely leave this option disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]126
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]127config FEATURE_SUN_LABEL
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]128 bool "Support SUN disklabels"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]129 default n
Mike Frysinger71a6a4e2007-01-24 08:24:43 +0000[diff] [blame]130 depends on FDISK && FEATURE_FDISK_WRITABLE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]131 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]132 Enabling this option allows you to create or change SUN disklabels.
133 Most people can safely leave this option disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]134
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]135config FEATURE_OSF_LABEL
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]136 bool "Support BSD disklabels"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]137 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]138 depends on FDISK && FEATURE_FDISK_WRITABLE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]139 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]140 Enabling this option allows you to create or change BSD disklabels
141 and define and edit BSD disk slices.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]142
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]143config FEATURE_FDISK_ADVANCED
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]144 bool "Support expert mode"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]145 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]146 depends on FDISK && FEATURE_FDISK_WRITABLE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]147 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]148 Enabling this option allows you to do terribly unsafe things like
149 define arbitrary drive geometry, move the beginning of data in a
150 partition, and similarly evil things. Unless you have a very good
151 reason you would be wise to leave this disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]152
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000[diff] [blame^]153config FINDFS
154 bool "findfs"
155 default n
156 select VOLUMEID
157 help
158 This is similar to the findfs program that is part of the e2fsprogs
159 package. However, the e2fsprogs version only support ext2/3. This
160 version supports those in addition to FAT, swap, and ReiserFS.
161 WARNING:
162 With all submodules selected, it will add ~11k to busybox.
163
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]164config FREERAMDISK
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]165 bool "freeramdisk"
166 default n
167 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]168 Linux allows you to create ramdisks. This utility allows you to
169 delete them and completely free all memory that was used for the
170 ramdisk. For example, if you boot Linux into a ramdisk and later
171 pivot_root, you may want to free the memory that is allocated to the
172 ramdisk. If you have no use for freeing memory from a ramdisk, leave
173 this disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]174
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]175config FSCK_MINIX
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]176 bool "fsck_minix"
177 default n
178 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]179 The minix filesystem is a nice, small, compact, read-write filesystem
180 with little overhead. It is not a journaling filesystem however and
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]181 can experience corruption if it is not properly unmounted or if the
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]182 power goes off in the middle of a write. This utility allows you to
183 check for and attempt to repair any corruption that occurs to a minix
184 filesystem.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]185
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]186config MKFS_MINIX
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]187 bool "mkfs_minix"
188 default n
189 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]190 The minix filesystem is a nice, small, compact, read-write filesystem
191 with little overhead. If you wish to be able to create minix filesystems
192 this utility will do the job for you.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]193
194comment "Minix filesystem support"
Mike Frysinger71a6a4e2007-01-24 08:24:43 +0000[diff] [blame]195 depends on FSCK_MINIX || MKFS_MINIX
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]196
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]197config FEATURE_MINIX2
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]198 bool "Support Minix fs v2 (fsck_minix/mkfs_minix)"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]199 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]200 depends on FSCK_MINIX || MKFS_MINIX
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]201 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]202 If you wish to be able to create version 2 minix filesystems, enable this.
203 If you enabled 'mkfs_minix' then you almost certainly want to be using the
204 version 2 filesystem support.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]205
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]206config GETOPT
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]207 bool "getopt"
208 default n
209 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]210 The getopt utility is used to break up (parse) options in command
211 lines to make it easy to write complex shell scripts that also check
212 for legal (and illegal) options. If you want to write horribly
213 complex shell scripts, or use some horribly complex shell script
214 written by others, this utility may be for you. Most people will
215 wisely leave this disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]216
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]217config HEXDUMP
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]218 bool "hexdump"
219 default n
220 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]221 The hexdump utility is used to display binary data in a readable
222 way that is comparable to the output from most hex editors.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]223
Denis Vlasenkofbe5f392007-11-18 05:36:50 +0000[diff] [blame]224config HD
225 bool "hd"
226 default n
Denis Vlasenkod2023282007-11-23 23:39:01 +0000[diff] [blame]227 select HEXDUMP
Denis Vlasenkofbe5f392007-11-18 05:36:50 +0000[diff] [blame]228 help
229 hd is an alias to hexdump -C.
230
231config FEATURE_HEXDUMP_REVERSE
232 bool "Support -R, reverse of 'hexdump -Cv'"
233 default n
234 depends on HEXDUMP
235 help
236 The hexdump utility is used to display binary data in an ascii
237 readable way. This option creates binary data from an ascii input.
238 NB: this option is non-standard. It's unwise to use it in scripts
239 aimed to be portable.
240
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]241config HWCLOCK
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]242 bool "hwclock"
243 default n
244 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]245 The hwclock utility is used to read and set the hardware clock
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]246 on a system. This is primarily used to set the current time on
247 shutdown in the hardware clock, so the hardware will keep the
248 correct time when Linux is _not_ running.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]249
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]250config FEATURE_HWCLOCK_LONG_OPTIONS
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]251 bool "Support long options (--hctosys,...)"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]252 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]253 depends on HWCLOCK && GETOPT_LONG
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]254 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]255 By default, the hwclock utility only uses short options. If you
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]256 are overly fond of its long options, such as --hctosys, --utc, etc)
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]257 then enable this option.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]258
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]259config FEATURE_HWCLOCK_ADJTIME_FHS
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]260 bool "Use FHS /var/lib/hwclock/adjtime"
Mike Frysinger747fc5d2005-09-28 03:21:21 +0000[diff] [blame]261 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]262 depends on HWCLOCK
Mike Frysinger747fc5d2005-09-28 03:21:21 +0000[diff] [blame]263 help
264 Starting with FHS 2.3, the adjtime state file is supposed to exist
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]265 at /var/lib/hwclock/adjtime instead of /etc/adjtime. If you wish
Mike Frysinger747fc5d2005-09-28 03:21:21 +0000[diff] [blame]266 to use the FHS behavior, answer Y here, otherwise answer N for the
267 classic /etc/adjtime path.
268
269 http://www.pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO
270
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]271config IPCRM
Rob Landley6eb1e412005-06-20 04:30:36 +0000[diff] [blame]272 bool "ipcrm"
273 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]274 select FEATURE_SUID
Rob Landley6eb1e412005-06-20 04:30:36 +0000[diff] [blame]275 help
276 The ipcrm utility allows the removal of System V interprocess
277 communication (IPC) objects and the associated data structures
278 from the system.
279
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]280config IPCS
Rob Landley6eb1e412005-06-20 04:30:36 +0000[diff] [blame]281 bool "ipcs"
282 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]283 select FEATURE_SUID
Rob Landley6eb1e412005-06-20 04:30:36 +0000[diff] [blame]284 help
285 The ipcs utility is used to provide information on the currently
286 allocated System V interprocess (IPC) objects in the system.
287
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]288config LOSETUP
Mike Frysinger75aa1922005-09-24 23:12:38 +0000[diff] [blame]289 bool "losetup"
290 default n
291 help
292 losetup is used to associate or detach a loop device with a regular
293 file or block device, and to query the status of a loop device. This
294 version does not currently support enabling data encryption.
295
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]296config MDEV
Rob Landley70f7ef72005-12-13 08:21:33 +0000[diff] [blame]297 bool "mdev"
298 default n
299 help
Mike Frysingerae302102007-02-14 13:20:29 +0000[diff] [blame]300 mdev is a mini-udev implementation for dynamically creating device
301 nodes in the /dev directory.
302
303 For more information, please see docs/mdev.txt
Rob Landley70f7ef72005-12-13 08:21:33 +0000[diff] [blame]304
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]305config FEATURE_MDEV_CONF
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]306 bool "Support /etc/mdev.conf"
Rob Landley70f7ef72005-12-13 08:21:33 +0000[diff] [blame]307 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]308 depends on MDEV
Rob Landley70f7ef72005-12-13 08:21:33 +0000[diff] [blame]309 help
Mike Frysingerae302102007-02-14 13:20:29 +0000[diff] [blame]310 Add support for the mdev config file to control ownership and
311 permissions of the device nodes.
Rob Landley70f7ef72005-12-13 08:21:33 +0000[diff] [blame]312
Mike Frysingerae302102007-02-14 13:20:29 +0000[diff] [blame]313 For more information, please see docs/mdev.txt
Rob Landley70f7ef72005-12-13 08:21:33 +0000[diff] [blame]314
Mike Frysingerf0044c42008-02-01 06:53:50 +0000[diff] [blame]315config FEATURE_MDEV_RENAME
316 bool "Support subdirs/symlinks"
317 default n
318 depends on FEATURE_MDEV_CONF
319 help
320 Add support for renaming devices and creating symlinks.
321
322 For more information, please see docs/mdev.txt
323
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]324config FEATURE_MDEV_EXEC
Rob Landleyef10d522006-06-26 14:11:33 +0000[diff] [blame]325 bool "Support command execution at device addition/removal"
326 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]327 depends on FEATURE_MDEV_CONF
Rob Landleyef10d522006-06-26 14:11:33 +0000[diff] [blame]328 help
Mike Frysingerae302102007-02-14 13:20:29 +0000[diff] [blame]329 This adds support for an optional field to /etc/mdev.conf for
330 executing commands when devices are created/removed.
Rob Landleyef10d522006-06-26 14:11:33 +0000[diff] [blame]331
Mike Frysingerae302102007-02-14 13:20:29 +0000[diff] [blame]332 For more information, please see docs/mdev.txt
Rob Landleyef10d522006-06-26 14:11:33 +0000[diff] [blame]333
Mike Frysingera78ef2c2007-06-13 07:34:15 +0000[diff] [blame]334config FEATURE_MDEV_LOAD_FIRMWARE
335 bool "Support loading of firmwares"
336 default n
337 depends on MDEV
338 help
339 Some devices need to load firmware before they can be usable.
340
341 These devices will request userspace look up the files in
342 /lib/firmware/ and if it exists, send it to the kernel for
343 loading into the hardware.
344
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]345config MKSWAP
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]346 bool "mkswap"
347 default n
348 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]349 The mkswap utility is used to configure a file or disk partition as
350 Linux swap space. This allows Linux to use the entire file or
351 partition as if it were additional RAM, which can greatly increase
352 the capability of low-memory machines. This additional memory is
353 much slower than real RAM, but can be very helpful at preventing your
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]354 applications being killed by the Linux out of memory (OOM) killer.
355 Once you have created swap space using 'mkswap' you need to enable
356 the swap space using the 'swapon' utility.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]357
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]358config FEATURE_MKSWAP_V0
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]359 bool "version 0 support"
Bernhard Reutner-Fischer56dd0bf2006-03-29 17:32:24 +0000[diff] [blame]360 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]361 depends on MKSWAP
362# depends on MKSWAP && DEPRECATED
Bernhard Reutner-Fischer56dd0bf2006-03-29 17:32:24 +0000[diff] [blame]363 help
364 Enable support for the old v0 style.
365 If your kernel is older than 2.1.117, then v0 support is the
366 only option.
367
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]368config MORE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]369 bool "more"
370 default n
371 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]372 more is a simple utility which allows you to read text one screen
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]373 sized page at a time. If you want to read text that is larger than
374 the screen, and you are using anything faster than a 300 baud modem,
375 you will probably find this utility very helpful. If you don't have
376 any need to reading text files, you can leave this disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]377
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]378config FEATURE_USE_TERMIOS
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]379 bool "Use termios to manipulate the screen"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]380 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]381 depends on MORE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]382 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]383 This option allows utilities such as 'more' and 'top' to determine
384 the size of the screen. If you leave this disabled, your utilities
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]385 that display things on the screen will be especially primitive and
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]386 will be unable to determine the current screen size, and will be
387 unable to move the cursor.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]388
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000[diff] [blame^]389config VOLUMEID
390 bool "Routines for detecting label and uuid on common filesystems"
391 default n
392 help
393 TODO
394
395config FEATURE_VOLUMEID_EXT
396 bool "Ext filesystem"
397 default n
398 depends on VOLUMEID
399 help
400 TODO
401
402config FEATURE_VOLUMEID_REISERFS
403 bool "Reiser filesystem"
404 default n
405 depends on VOLUMEID
406 help
407 TODO
408
409config FEATURE_VOLUMEID_FAT
410 bool "fat filesystem"
411 default n
412 depends on VOLUMEID
413 help
414 TODO
415
416config FEATURE_VOLUMEID_HFS
417 bool "hfs filesystem"
418 default n
419 depends on VOLUMEID
420 help
421 TODO
422
423config FEATURE_VOLUMEID_JFS
424 bool "jfs filesystem"
425 default n
426 depends on VOLUMEID
427 help
428 TODO
429
430config FEATURE_VOLUMEID_UFS
431 bool "ufs filesystem"
432 default n
433 depends on VOLUMEID
434 help
435 TODO
436
437config FEATURE_VOLUMEID_XFS
438 bool "xfs filesystem"
439 default n
440 depends on VOLUMEID
441 help
442 TODO
443
444config FEATURE_VOLUMEID_NTFS
445 bool "ntfs filesystem"
446 default n
447 depends on VOLUMEID
448 help
449 TODO
450
451config FEATURE_VOLUMEID_ISO9660
452 bool "iso9660 filesystem"
453 default n
454 depends on VOLUMEID
455 help
456 TODO
457
458config FEATURE_VOLUMEID_UDF
459 bool "udf filesystem"
460 default n
461 depends on VOLUMEID
462 help
463 TODO
464
465config FEATURE_VOLUMEID_LUKS
466 bool "luks filesystem"
467 default n
468 depends on VOLUMEID
469 help
470 TODO
471
472config FEATURE_VOLUMEID_LINUXSWAP
473 bool "linux swap filesystem"
474 default n
475 depends on VOLUMEID
476 help
477 TODO
478
479config FEATURE_VOLUMEID_LVM
480 bool "lvm"
481 default n
482 depends on VOLUMEID
483 help
484 TODO
485
486config FEATURE_VOLUMEID_CRAMFS
487 bool "cramfs filesystem"
488 default n
489 depends on VOLUMEID
490 help
491 TODO
492
493config FEATURE_VOLUMEID_HPFS
494 bool "hpfs filesystem"
495 default n
496 depends on VOLUMEID
497 help
498 TODO
499
500config FEATURE_VOLUMEID_ROMFS
501 bool "romfs filesystem"
502 default n
503 depends on VOLUMEID
504 help
505 TODO
506
507config FEATURE_VOLUMEID_SYSV
508 bool "sysv filesystem"
509 default n
510 depends on VOLUMEID
511 help
512 TODO
513
514config FEATURE_VOLUMEID_MINIX
515 bool "minix filesystem"
516 default n
517 depends on VOLUMEID
518 help
519 TODO
520
521config FEATURE_VOLUMEID_MAC
522 bool "mac filesystem"
523 default n
524 depends on VOLUMEID
525 help
526 TODO
527
528config FEATURE_VOLUMEID_MSDOS
529 bool "msdos filesystem"
530 default n
531 depends on VOLUMEID
532 help
533 TODO
534
535config FEATURE_VOLUMEID_OCFS2
536 bool "ocfs2 filesystem"
537 default n
538 depends on VOLUMEID
539 help
540 TODO
541
542config FEATURE_VOLUMEID_HIGHPOINTRAID
543 bool "highpoint raid"
544 default n
545 depends on VOLUMEID
546 help
547 TODO
548
549config FEATURE_VOLUMEID_ISWRAID
550 bool "intel raid"
551 default n
552 depends on VOLUMEID
553 help
554 TODO
555
556config FEATURE_VOLUMEID_LSIRAID
557 bool "lsi raid"
558 default n
559 depends on VOLUMEID
560 help
561 TODO
562
563config FEATURE_VOLUMEID_VIARAID
564 bool "via raid"
565 default n
566 depends on VOLUMEID
567 help
568 TODO
569
570config FEATURE_VOLUMEID_SILICONRAID
571 bool "silicon raid"
572 default n
573 depends on VOLUMEID
574 help
575 TODO
576
577config FEATURE_VOLUMEID_NVIDIARAID
578 bool "nvidia raid"
579 default n
580 depends on VOLUMEID
581 help
582 TODO
583
584config FEATURE_VOLUMEID_PROMISERAID
585 bool "promise raid"
586 default n
587 depends on VOLUMEID
588 help
589 TODO
590
591config FEATURE_VOLUMEID_LINUXRAID
592 bool "linuxraid"
593 default n
594 depends on VOLUMEID
595 help
596 TODO
597
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]598config MOUNT
Mike Frysinger55092282006-02-02 23:14:57 +0000[diff] [blame]599 bool "mount"
600 default n
601 help
602 All files and filesystems in Unix are arranged into one big directory
603 tree. The 'mount' utility is used to graft a filesystem onto a
604 particular part of the tree. A filesystem can either live on a block
605 device, or it can be accessible over the network, as is the case with
606 NFS filesystems. Most people using BusyBox will also want to enable
607 the 'mount' utility.
608
Denis Vlasenkob1d8e7d2008-02-16 23:28:42 +0000[diff] [blame]609config FEATURE_MOUNT_FAKE
610 bool "mount -f option"
611 default n
612 depends on MOUNT
613 help
614 Enable support for faking a file system mount.
615
Denis Vlasenkof732e962008-02-18 12:07:49 +0000[diff] [blame]616config FEATURE_MOUNT_VERBOSE
617 bool "mount -v option"
618 default n
619 depends on MOUNT
620 help
621 Enable multi-level -v[vv...] verbose messages. Useful if you
622 debug mount problems and want to see what is exactly passed
623 to the kernel.
624
Denis Vlasenko2535f122007-09-15 13:28:30 +0000[diff] [blame]625config FEATURE_MOUNT_HELPERS
626 bool "Support mount helpers"
627 default n
628 depends on MOUNT
629 help
630 Enable mounting of virtual file systems via external helpers.
Denis Vlasenko32d49bc2008-02-03 23:52:41 +0000[diff] [blame]631 E.g. "mount obexfs#-b00.11.22.33.44.55 /mnt" will in effect call
632 "obexfs -b00.11.22.33.44.55 /mnt"
633 Also "mount -t sometype [-o opts] fs /mnt" will try
634 "sometype [-o opts] fs /mnt" if simple mount syscall fails.
635 The idea is to use such virtual filesystems in /etc/fstab.
Denis Vlasenko2535f122007-09-15 13:28:30 +0000[diff] [blame]636
Denis Vlasenkode7684a2008-02-18 21:08:49 +0000[diff] [blame^]637config FEATURE_MOUNT_LABEL
638 bool " Support specifiying devices by label or UUID"
639 default n
640 depends on MOUNT
641 select FINDFS
642 help
643 This allows for specifying a device by label or uuid, rather than by
644 name. This feature utilizes the same functionality as findfs.
645
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]646config FEATURE_MOUNT_NFS
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]647 bool "Support mounting NFS file systems"
Mike Frysinger55092282006-02-02 23:14:57 +0000[diff] [blame]648 default n
Denis Vlasenkoa7825f22007-06-16 13:56:51 +0000[diff] [blame]649 depends on MOUNT
650 select FEATURE_HAVE_RPC
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]651 select FEATURE_SYSLOG
Mike Frysinger55092282006-02-02 23:14:57 +0000[diff] [blame]652 help
Rob Landleye3781b72006-08-08 01:39:49 +0000[diff] [blame]653 Enable mounting of NFS file systems.
654
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]655config FEATURE_MOUNT_CIFS
Rob Landley89d9d4d2006-09-01 08:10:44 +0000[diff] [blame]656 bool "Support mounting CIFS/SMB file systems"
657 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]658 depends on MOUNT
Rob Landley89d9d4d2006-09-01 08:10:44 +0000[diff] [blame]659 help
660 Enable support for samba mounts.
Denis Vlasenko39e93cc2006-09-10 18:38:17 +0000[diff] [blame]661
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]662config FEATURE_MOUNT_FLAGS
663 depends on MOUNT
Denis Vlasenko39e93cc2006-09-10 18:38:17 +0000[diff] [blame]664 bool "Support lots of -o flags in mount"
Rob Landleye3781b72006-08-08 01:39:49 +0000[diff] [blame]665 default y
666 help
667 Without this, mount only supports ro/rw/remount. With this, it
668 supports nosuid, suid, dev, nodev, exec, noexec, sync, async, atime,
669 noatime, diratime, nodiratime, loud, bind, move, shared, slave,
670 private, unbindable, rshared, rslave, rprivate, and runbindable.
671
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]672config FEATURE_MOUNT_FSTAB
673 depends on MOUNT
Rob Landleye3781b72006-08-08 01:39:49 +0000[diff] [blame]674 bool "Support /etc/fstab and -a"
675 default y
676 help
677 Support mount all and looking for files in /etc/fstab.
Mike Frysinger55092282006-02-02 23:14:57 +0000[diff] [blame]678
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]679config PIVOT_ROOT
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]680 bool "pivot_root"
681 default n
682 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]683 The pivot_root utility swaps the mount points for the root filesystem
684 with some other mounted filesystem. This allows you to do all sorts
685 of wild and crazy things with your Linux system and is far more
686 powerful than 'chroot'.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]687
Rob Landley0f34a822005-10-27 22:55:50 +0000[diff] [blame]688 Note: This is for initrd in linux 2.4. Under initramfs (introduced
689 in linux 2.6) use switch_root instead.
690
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]691config RDATE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]692 bool "rdate"
693 default n
694 help
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000[diff] [blame]695 The rdate utility allows you to synchronize the date and time of your
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]696 system clock with the date and time of a remote networked system using
697 the RFC868 protocol, which is built into the inetd daemon on most
698 systems.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]699
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]700config READPROFILE
Mike Frysinger75aa1922005-09-24 23:12:38 +0000[diff] [blame]701 bool "readprofile"
702 default n
703 help
704 This allows you to parse /proc/profile for basic profiling.
705
Mike Frysinger6b160e42008-02-15 02:27:19 +0000[diff] [blame]706config RTCWAKE
707 bool "rtcwake"
708 default n
709 help
710 Enter a system sleep state until specified wakeup time.
711
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]712config SETARCH
Mike Frysinger0a6b0bf2006-02-21 04:26:52 +0000[diff] [blame]713 bool "setarch"
714 default n
715 help
716 The linux32 utility is used to create a 32bit environment for the
717 specified program (usually a shell). It only makes sense to have
718 this util on a system that supports both 64bit and 32bit userland
719 (like amd64/x86, ppc64/ppc, sparc64/sparc, etc...).
720
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]721config SWAPONOFF
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]722 bool "swaponoff"
723 default n
724 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]725 This option enables both the 'swapon' and the 'swapoff' utilities.
726 Once you have created some swap space using 'mkswap', you also need
727 to enable your swap space with the 'swapon' utility. The 'swapoff'
728 utility is used, typically at system shutdown, to disable any swap
729 space. If you are not using any swap space, you can leave this
730 option disabled.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]731
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]732config SWITCH_ROOT
Mike Frysinger55092282006-02-02 23:14:57 +0000[diff] [blame]733 bool "switch_root"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]734 default n
735 help
Mike Frysinger55092282006-02-02 23:14:57 +0000[diff] [blame]736 The switch_root utility is used from initramfs to select a new
737 root device. Under initramfs, you have to use this instead of
738 pivot_root. (Stop reading here if you don't care why.)
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]739
Mike Frysinger55092282006-02-02 23:14:57 +0000[diff] [blame]740 Booting with initramfs extracts a gzipped cpio archive into rootfs
741 (which is a variant of ramfs/tmpfs). Because rootfs can't be moved
742 or unmounted*, pivot_root will not work from initramfs. Instead,
743 switch_root deletes everything out of rootfs (including itself),
744 does a mount --move that overmounts rootfs with the new root, and
745 then execs the specified init program.
746
747 * Because the Linux kernel uses rootfs internally as the starting
748 and ending point for searching through the kernel's doubly linked
749 list of active mount points. That's why.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]750
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]751config UMOUNT
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]752 bool "umount"
753 default n
754 help
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]755 When you want to remove a mounted filesystem from its current mount point,
756 for example when you are shutting down the system, the 'umount' utility is
757 the tool to use. If you enabled the 'mount' utility, you almost certainly
758 also want to enable 'umount'.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]759
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]760config FEATURE_UMOUNT_ALL
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]761 bool "umount -a option"
Rob Landleycc6d8d32006-02-08 20:06:57 +0000[diff] [blame]762 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]763 depends on UMOUNT
Rob Landleycc6d8d32006-02-08 20:06:57 +0000[diff] [blame]764 help
765 Support -a option to unmount all currently mounted filesystems.
766
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]767comment "Common options for mount/umount"
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]768 depends on MOUNT || UMOUNT
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]769
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]770config FEATURE_MOUNT_LOOP
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]771 bool "Support loopback mounts"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]772 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]773 depends on MOUNT || UMOUNT
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]774 help
Rob Landley6a6798b2005-08-10 20:35:54 +0000[diff] [blame]775 Enabling this feature allows automatic mounting of files (containing
776 filesystem images) via the linux kernel's loopback devices. The mount
777 command will detect you are trying to mount a file instead of a block
778 device, and transparently associate the file with a loopback device.
779 The umount command will also free that loopback device.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]780
Rob Landley6a6798b2005-08-10 20:35:54 +0000[diff] [blame]781 You can still use the 'losetup' utility (to manually associate files
Mike Frysinger71a6a4e2007-01-24 08:24:43 +0000[diff] [blame]782 with loop devices) if you need to do something advanced, such as
Rob Landley6a6798b2005-08-10 20:35:54 +0000[diff] [blame]783 specify an offset or cryptographic options to the loopback device.
784 (If you don't want umount to free the loop device, use "umount -D".)
Paul Fox3f6f3172005-07-19 20:55:37 +0000[diff] [blame]785
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]786config FEATURE_MTAB_SUPPORT
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]787 bool "Support for the old /etc/mtab file"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]788 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]789 depends on MOUNT || UMOUNT
Denis Vlasenkob1d8e7d2008-02-16 23:28:42 +0000[diff] [blame]790 select FEATURE_MOUNT_FAKE
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]791 help
Rob Landley6a6798b2005-08-10 20:35:54 +0000[diff] [blame]792 Historically, Unix systems kept track of the currently mounted
793 partitions in the file "/etc/mtab". These days, the kernel exports
794 the list of currently mounted partitions in "/proc/mounts", rendering
795 the old mtab file obsolete. (In modern systems, /etc/mtab should be
796 a symlink to /proc/mounts.)
Eric Andersena0ac4522003-02-27 03:14:04 +0000[diff] [blame]797
Rob Landley6a6798b2005-08-10 20:35:54 +0000[diff] [blame]798 The only reason to have mount maintain an /etc/mtab file itself is if
799 your stripped-down embedded system does not have a /proc directory.
800 If you must use this, keep in mind it's inherently brittle (for
801 example a mount under chroot won't update it), can't handle modern
802 features like separate per-process filesystem namespaces, requires
803 that your /etc directory be writeable, tends to get easily confused
Rob Landley17507fa2006-05-08 02:22:24 +0000[diff] [blame]804 by --bind or --move mounts, won't update if you rename a directory
805 that contains a mount point, and so on. (In brief: avoid.)
806
807 About the only reason to use this is if you've removed /proc from
808 your kernel.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]809
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]810endmenu
811