Config.in 28 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792
  1. # DO NOT EDIT. This file is generated from Config.src
  2. #
  3. # For a description of the syntax of this configuration file,
  4. # see scripts/kbuild/config-language.txt.
  5. #
  6. menu "Linux System Utilities"
  7. config BUSYBOX_CONFIG_BLOCKDEV
  8. bool "blockdev"
  9. default BUSYBOX_DEFAULT_BLOCKDEV
  10. help
  11. Performs some ioctls with block devices.
  12. config BUSYBOX_CONFIG_FATATTR
  13. bool "fatattr"
  14. default BUSYBOX_DEFAULT_FATATTR
  15. select BUSYBOX_CONFIG_PLATFORM_LINUX
  16. help
  17. fatattr lists or changes the file attributes on a fat file system.
  18. config BUSYBOX_CONFIG_FSTRIM
  19. bool "fstrim"
  20. default BUSYBOX_DEFAULT_FSTRIM
  21. select BUSYBOX_CONFIG_PLATFORM_LINUX
  22. help
  23. Discard unused blocks on a mounted filesystem.
  24. config BUSYBOX_CONFIG_MDEV
  25. bool "mdev"
  26. default BUSYBOX_DEFAULT_MDEV
  27. select BUSYBOX_CONFIG_PLATFORM_LINUX
  28. help
  29. mdev is a mini-udev implementation for dynamically creating device
  30. nodes in the /dev directory.
  31. For more information, please see docs/mdev.txt
  32. config BUSYBOX_CONFIG_FEATURE_MDEV_CONF
  33. bool "Support /etc/mdev.conf"
  34. default BUSYBOX_DEFAULT_FEATURE_MDEV_CONF
  35. depends on BUSYBOX_CONFIG_MDEV
  36. help
  37. Add support for the mdev config file to control ownership and
  38. permissions of the device nodes.
  39. For more information, please see docs/mdev.txt
  40. config BUSYBOX_CONFIG_FEATURE_MDEV_RENAME
  41. bool "Support subdirs/symlinks"
  42. default BUSYBOX_DEFAULT_FEATURE_MDEV_RENAME
  43. depends on BUSYBOX_CONFIG_FEATURE_MDEV_CONF
  44. help
  45. Add support for renaming devices and creating symlinks.
  46. For more information, please see docs/mdev.txt
  47. config BUSYBOX_CONFIG_FEATURE_MDEV_RENAME_REGEXP
  48. bool "Support regular expressions substitutions when renaming device"
  49. default BUSYBOX_DEFAULT_FEATURE_MDEV_RENAME_REGEXP
  50. depends on BUSYBOX_CONFIG_FEATURE_MDEV_RENAME
  51. help
  52. Add support for regular expressions substitutions when renaming
  53. device.
  54. config BUSYBOX_CONFIG_FEATURE_MDEV_EXEC
  55. bool "Support command execution at device addition/removal"
  56. default BUSYBOX_DEFAULT_FEATURE_MDEV_EXEC
  57. depends on BUSYBOX_CONFIG_FEATURE_MDEV_CONF
  58. help
  59. This adds support for an optional field to /etc/mdev.conf for
  60. executing commands when devices are created/removed.
  61. For more information, please see docs/mdev.txt
  62. config BUSYBOX_CONFIG_FEATURE_MDEV_LOAD_FIRMWARE
  63. bool "Support loading of firmwares"
  64. default BUSYBOX_DEFAULT_FEATURE_MDEV_LOAD_FIRMWARE
  65. depends on BUSYBOX_CONFIG_MDEV
  66. help
  67. Some devices need to load firmware before they can be usable.
  68. These devices will request userspace look up the files in
  69. /lib/firmware/ and if it exists, send it to the kernel for
  70. loading into the hardware.
  71. config BUSYBOX_CONFIG_REV
  72. bool "rev"
  73. default BUSYBOX_DEFAULT_REV
  74. help
  75. Reverse lines of a file or files.
  76. config BUSYBOX_CONFIG_ACPID
  77. bool "acpid"
  78. default BUSYBOX_DEFAULT_ACPID
  79. select BUSYBOX_CONFIG_PLATFORM_LINUX
  80. help
  81. acpid listens to ACPI events coming either in textual form from
  82. /proc/acpi/event (though it is marked deprecated it is still widely
  83. used and _is_ a standard) or in binary form from specified evdevs
  84. (just use /dev/input/event*).
  85. It parses the event to retrieve ACTION and a possible PARAMETER.
  86. It then spawns /etc/acpi/<ACTION>[/<PARAMETER>] either via run-parts
  87. (if the resulting path is a directory) or directly as an executable.
  88. N.B. acpid relies on run-parts so have the latter installed.
  89. config BUSYBOX_CONFIG_FEATURE_ACPID_COMPAT
  90. bool "Accept and ignore redundant options"
  91. default BUSYBOX_DEFAULT_FEATURE_ACPID_COMPAT
  92. depends on BUSYBOX_CONFIG_ACPID
  93. help
  94. Accept and ignore compatibility options -g -m -s -S -v.
  95. config BUSYBOX_CONFIG_BLKID
  96. bool "blkid"
  97. default BUSYBOX_DEFAULT_BLKID
  98. select BUSYBOX_CONFIG_PLATFORM_LINUX
  99. select BUSYBOX_CONFIG_VOLUMEID
  100. help
  101. Lists labels and UUIDs of all filesystems.
  102. WARNING:
  103. With all submodules selected, it will add ~8k to busybox.
  104. config BUSYBOX_CONFIG_FEATURE_BLKID_TYPE
  105. bool "Print filesystem type"
  106. default BUSYBOX_DEFAULT_FEATURE_BLKID_TYPE
  107. depends on BUSYBOX_CONFIG_BLKID
  108. help
  109. Show TYPE="filesystem type"
  110. config BUSYBOX_CONFIG_DMESG
  111. bool "dmesg"
  112. default BUSYBOX_DEFAULT_DMESG
  113. select BUSYBOX_CONFIG_PLATFORM_LINUX
  114. help
  115. dmesg is used to examine or control the kernel ring buffer. When the
  116. Linux kernel prints messages to the system log, they are stored in
  117. the kernel ring buffer. You can use dmesg to print the kernel's ring
  118. buffer, clear the kernel ring buffer, change the size of the kernel
  119. ring buffer, and change the priority level at which kernel messages
  120. are also logged to the system console. Enable this option if you
  121. wish to enable the 'dmesg' utility.
  122. config BUSYBOX_CONFIG_FEATURE_DMESG_PRETTY
  123. bool "Pretty dmesg output"
  124. default BUSYBOX_DEFAULT_FEATURE_DMESG_PRETTY
  125. depends on BUSYBOX_CONFIG_DMESG
  126. help
  127. If you wish to scrub the syslog level from the output, say 'Y' here.
  128. The syslog level is a string prefixed to every line with the form
  129. "<#>".
  130. With this option you will see:
  131. # dmesg
  132. Linux version 2.6.17.4 .....
  133. BIOS-provided physical RAM map:
  134. BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
  135. Without this option you will see:
  136. # dmesg
  137. <5>Linux version 2.6.17.4 .....
  138. <6>BIOS-provided physical RAM map:
  139. <6> BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
  140. config BUSYBOX_CONFIG_FBSET
  141. bool "fbset"
  142. default BUSYBOX_DEFAULT_FBSET
  143. select BUSYBOX_CONFIG_PLATFORM_LINUX
  144. help
  145. fbset is used to show or change the settings of a Linux frame buffer
  146. device. The frame buffer device provides a simple and unique
  147. interface to access a graphics display. Enable this option
  148. if you wish to enable the 'fbset' utility.
  149. config BUSYBOX_CONFIG_FEATURE_FBSET_FANCY
  150. bool "Turn on extra fbset options"
  151. default BUSYBOX_DEFAULT_FEATURE_FBSET_FANCY
  152. depends on BUSYBOX_CONFIG_FBSET
  153. help
  154. This option enables extended fbset options, allowing one to set the
  155. framebuffer size, color depth, etc. interface to access a graphics
  156. display. Enable this option if you wish to enable extended fbset
  157. options.
  158. config BUSYBOX_CONFIG_FEATURE_FBSET_READMODE
  159. bool "Turn on fbset readmode support"
  160. default BUSYBOX_DEFAULT_FEATURE_FBSET_READMODE
  161. depends on BUSYBOX_CONFIG_FBSET
  162. help
  163. This option allows fbset to read the video mode database stored by
  164. default BUSYBOX_DEFAULT_FEATURE_FBSET_READMODE /etc/fb.modes, which can be used to set frame buffer
  165. device to pre-defined video modes.
  166. config BUSYBOX_CONFIG_FDFLUSH
  167. bool "fdflush"
  168. default BUSYBOX_DEFAULT_FDFLUSH
  169. select BUSYBOX_CONFIG_PLATFORM_LINUX
  170. help
  171. fdflush is only needed when changing media on slightly-broken
  172. removable media drives. It is used to make Linux believe that a
  173. hardware disk-change switch has been actuated, which causes Linux to
  174. forget anything it has cached from the previous media. If you have
  175. such a slightly-broken drive, you will need to run fdflush every time
  176. you change a disk. Most people have working hardware and can safely
  177. leave this disabled.
  178. config BUSYBOX_CONFIG_FDFORMAT
  179. bool "fdformat"
  180. default BUSYBOX_DEFAULT_FDFORMAT
  181. select BUSYBOX_CONFIG_PLATFORM_LINUX
  182. help
  183. fdformat is used to low-level format a floppy disk.
  184. config BUSYBOX_CONFIG_FDISK
  185. bool "fdisk"
  186. default BUSYBOX_DEFAULT_FDISK
  187. select BUSYBOX_CONFIG_PLATFORM_LINUX
  188. help
  189. The fdisk utility is used to divide hard disks into one or more
  190. logical disks, which are generally called partitions. This utility
  191. can be used to list and edit the set of partitions or BSD style
  192. 'disk slices' that are defined on a hard drive.
  193. config BUSYBOX_CONFIG_FDISK_SUPPORT_LARGE_DISKS
  194. bool "Support over 4GB disks"
  195. default BUSYBOX_DEFAULT_FDISK_SUPPORT_LARGE_DISKS
  196. depends on BUSYBOX_CONFIG_FDISK
  197. depends on !BUSYBOX_CONFIG_LFS # with LFS no special code is needed
  198. help
  199. Enable this option to support large disks > 4GB.
  200. config BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
  201. bool "Write support"
  202. default BUSYBOX_DEFAULT_FEATURE_FDISK_WRITABLE
  203. depends on BUSYBOX_CONFIG_FDISK
  204. help
  205. Enabling this option allows you to create or change a partition table
  206. and write those changes out to disk. If you leave this option
  207. disabled, you will only be able to view the partition table.
  208. config BUSYBOX_CONFIG_FEATURE_AIX_LABEL
  209. bool "Support AIX disklabels"
  210. default BUSYBOX_DEFAULT_FEATURE_AIX_LABEL
  211. depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
  212. help
  213. Enabling this option allows you to create or change AIX disklabels.
  214. Most people can safely leave this option disabled.
  215. config BUSYBOX_CONFIG_FEATURE_SGI_LABEL
  216. bool "Support SGI disklabels"
  217. default BUSYBOX_DEFAULT_FEATURE_SGI_LABEL
  218. depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
  219. help
  220. Enabling this option allows you to create or change SGI disklabels.
  221. Most people can safely leave this option disabled.
  222. config BUSYBOX_CONFIG_FEATURE_SUN_LABEL
  223. bool "Support SUN disklabels"
  224. default BUSYBOX_DEFAULT_FEATURE_SUN_LABEL
  225. depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
  226. help
  227. Enabling this option allows you to create or change SUN disklabels.
  228. Most people can safely leave this option disabled.
  229. config BUSYBOX_CONFIG_FEATURE_OSF_LABEL
  230. bool "Support BSD disklabels"
  231. default BUSYBOX_DEFAULT_FEATURE_OSF_LABEL
  232. depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
  233. help
  234. Enabling this option allows you to create or change BSD disklabels
  235. and define and edit BSD disk slices.
  236. config BUSYBOX_CONFIG_FEATURE_GPT_LABEL
  237. bool "Support GPT disklabels"
  238. default BUSYBOX_DEFAULT_FEATURE_GPT_LABEL
  239. depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
  240. help
  241. Enabling this option allows you to view GUID Partition Table
  242. disklabels.
  243. config BUSYBOX_CONFIG_FEATURE_FDISK_ADVANCED
  244. bool "Support expert mode"
  245. default BUSYBOX_DEFAULT_FEATURE_FDISK_ADVANCED
  246. depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
  247. help
  248. Enabling this option allows you to do terribly unsafe things like
  249. define arbitrary drive geometry, move the beginning of data in a
  250. partition, and similarly evil things. Unless you have a very good
  251. reason you would be wise to leave this disabled.
  252. config BUSYBOX_CONFIG_FINDFS
  253. bool "findfs"
  254. default BUSYBOX_DEFAULT_FINDFS
  255. select BUSYBOX_CONFIG_PLATFORM_LINUX
  256. select BUSYBOX_CONFIG_VOLUMEID
  257. help
  258. Prints the name of a filesystem with given label or UUID.
  259. WARNING:
  260. With all submodules selected, it will add ~8k to busybox.
  261. config BUSYBOX_CONFIG_FLOCK
  262. bool "flock"
  263. default BUSYBOX_DEFAULT_FLOCK
  264. help
  265. Manage locks from shell scripts
  266. config BUSYBOX_CONFIG_FREERAMDISK
  267. bool "freeramdisk"
  268. default BUSYBOX_DEFAULT_FREERAMDISK
  269. select BUSYBOX_CONFIG_PLATFORM_LINUX
  270. help
  271. Linux allows you to create ramdisks. This utility allows you to
  272. delete them and completely free all memory that was used for the
  273. ramdisk. For example, if you boot Linux into a ramdisk and later
  274. pivot_root, you may want to free the memory that is allocated to the
  275. ramdisk. If you have no use for freeing memory from a ramdisk, leave
  276. this disabled.
  277. config BUSYBOX_CONFIG_FSCK_MINIX
  278. bool "fsck_minix"
  279. default BUSYBOX_DEFAULT_FSCK_MINIX
  280. help
  281. The minix filesystem is a nice, small, compact, read-write filesystem
  282. with little overhead. It is not a journaling filesystem however and
  283. can experience corruption if it is not properly unmounted or if the
  284. power goes off in the middle of a write. This utility allows you to
  285. check for and attempt to repair any corruption that occurs to a minix
  286. filesystem.
  287. config BUSYBOX_CONFIG_MKFS_EXT2
  288. bool "mkfs_ext2"
  289. default BUSYBOX_DEFAULT_MKFS_EXT2
  290. select BUSYBOX_CONFIG_PLATFORM_LINUX
  291. help
  292. Utility to create EXT2 filesystems.
  293. config BUSYBOX_CONFIG_MKFS_MINIX
  294. bool "mkfs_minix"
  295. default BUSYBOX_DEFAULT_MKFS_MINIX
  296. select BUSYBOX_CONFIG_PLATFORM_LINUX
  297. help
  298. The minix filesystem is a nice, small, compact, read-write filesystem
  299. with little overhead. If you wish to be able to create minix
  300. filesystems this utility will do the job for you.
  301. config BUSYBOX_CONFIG_FEATURE_MINIX2
  302. bool "Support Minix fs v2 (fsck_minix/mkfs_minix)"
  303. default BUSYBOX_DEFAULT_FEATURE_MINIX2
  304. depends on BUSYBOX_CONFIG_FSCK_MINIX || BUSYBOX_CONFIG_MKFS_MINIX
  305. help
  306. If you wish to be able to create version 2 minix filesystems, enable
  307. this. If you enabled 'mkfs_minix' then you almost certainly want to
  308. be using the version 2 filesystem support.
  309. config BUSYBOX_CONFIG_MKFS_REISER
  310. bool "mkfs_reiser"
  311. default BUSYBOX_DEFAULT_MKFS_REISER
  312. select BUSYBOX_CONFIG_PLATFORM_LINUX
  313. help
  314. Utility to create ReiserFS filesystems.
  315. Note: this applet needs a lot of testing and polishing.
  316. config BUSYBOX_CONFIG_MKFS_VFAT
  317. bool "mkfs_vfat"
  318. default BUSYBOX_DEFAULT_MKFS_VFAT
  319. select BUSYBOX_CONFIG_PLATFORM_LINUX
  320. help
  321. Utility to create FAT32 filesystems.
  322. config BUSYBOX_CONFIG_GETOPT
  323. bool "getopt"
  324. default BUSYBOX_DEFAULT_GETOPT
  325. help
  326. The getopt utility is used to break up (parse) options in command
  327. lines to make it easy to write complex shell scripts that also check
  328. for legal (and illegal) options. If you want to write horribly
  329. complex shell scripts, or use some horribly complex shell script
  330. written by others, this utility may be for you. Most people will
  331. wisely leave this disabled.
  332. config BUSYBOX_CONFIG_FEATURE_GETOPT_LONG
  333. bool "Support option -l"
  334. default BUSYBOX_DEFAULT_FEATURE_GETOPT_LONG if BUSYBOX_CONFIG_LONG_OPTS
  335. depends on BUSYBOX_CONFIG_GETOPT
  336. help
  337. Enable support for long options (option -l).
  338. config BUSYBOX_CONFIG_HEXDUMP
  339. bool "hexdump"
  340. default BUSYBOX_DEFAULT_HEXDUMP
  341. help
  342. The hexdump utility is used to display binary data in a readable
  343. way that is comparable to the output from most hex editors.
  344. config BUSYBOX_CONFIG_FEATURE_HEXDUMP_REVERSE
  345. bool "Support -R, reverse of 'hexdump -Cv'"
  346. default BUSYBOX_DEFAULT_FEATURE_HEXDUMP_REVERSE
  347. depends on BUSYBOX_CONFIG_HEXDUMP
  348. help
  349. The hexdump utility is used to display binary data in an ascii
  350. readable way. This option creates binary data from an ascii input.
  351. NB: this option is non-standard. It's unwise to use it in scripts
  352. aimed to be portable.
  353. config BUSYBOX_CONFIG_HD
  354. bool "hd"
  355. default BUSYBOX_DEFAULT_HD
  356. depends on BUSYBOX_CONFIG_HEXDUMP
  357. help
  358. hd is an alias to hexdump -C.
  359. config BUSYBOX_CONFIG_HWCLOCK
  360. bool "hwclock"
  361. default BUSYBOX_DEFAULT_HWCLOCK
  362. select BUSYBOX_CONFIG_PLATFORM_LINUX
  363. help
  364. The hwclock utility is used to read and set the hardware clock
  365. on a system. This is primarily used to set the current time on
  366. shutdown in the hardware clock, so the hardware will keep the
  367. correct time when Linux is _not_ running.
  368. config BUSYBOX_CONFIG_FEATURE_HWCLOCK_LONG_OPTIONS
  369. bool "Support long options (--hctosys,...)"
  370. default BUSYBOX_DEFAULT_FEATURE_HWCLOCK_LONG_OPTIONS
  371. depends on BUSYBOX_CONFIG_HWCLOCK && BUSYBOX_CONFIG_LONG_OPTS
  372. help
  373. By default, the hwclock utility only uses short options. If you
  374. are overly fond of its long options, such as --hctosys, --utc, etc)
  375. then enable this option.
  376. config BUSYBOX_CONFIG_FEATURE_HWCLOCK_ADJTIME_FHS
  377. bool "Use FHS /var/lib/hwclock/adjtime"
  378. default BUSYBOX_DEFAULT_FEATURE_HWCLOCK_ADJTIME_FHS # util-linux-ng in Fedora 13 still uses /etc/adjtime
  379. depends on BUSYBOX_CONFIG_HWCLOCK
  380. help
  381. Starting with FHS 2.3, the adjtime state file is supposed to exist
  382. at /var/lib/hwclock/adjtime instead of /etc/adjtime. If you wish
  383. to use the FHS behavior, answer Y here, otherwise answer N for the
  384. classic /etc/adjtime path.
  385. pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO
  386. config BUSYBOX_CONFIG_IPCRM
  387. bool "ipcrm"
  388. default BUSYBOX_DEFAULT_IPCRM
  389. help
  390. The ipcrm utility allows the removal of System V interprocess
  391. communication (IPC) objects and the associated data structures
  392. from the system.
  393. config BUSYBOX_CONFIG_IPCS
  394. bool "ipcs"
  395. default BUSYBOX_DEFAULT_IPCS
  396. select BUSYBOX_CONFIG_PLATFORM_LINUX
  397. help
  398. The ipcs utility is used to provide information on the currently
  399. allocated System V interprocess (IPC) objects in the system.
  400. config BUSYBOX_CONFIG_LOSETUP
  401. bool "losetup"
  402. default BUSYBOX_DEFAULT_LOSETUP
  403. select BUSYBOX_CONFIG_PLATFORM_LINUX
  404. help
  405. losetup is used to associate or detach a loop device with a regular
  406. file or block device, and to query the status of a loop device. This
  407. version does not currently support enabling data encryption.
  408. config BUSYBOX_CONFIG_LSPCI
  409. bool "lspci"
  410. default BUSYBOX_DEFAULT_LSPCI
  411. #select PLATFORM_LINUX
  412. help
  413. lspci is a utility for displaying information about PCI buses in the
  414. system and devices connected to them.
  415. This version uses sysfs (/sys/bus/pci/devices) only.
  416. config BUSYBOX_CONFIG_LSUSB
  417. bool "lsusb"
  418. default BUSYBOX_DEFAULT_LSUSB
  419. #select PLATFORM_LINUX
  420. help
  421. lsusb is a utility for displaying information about USB buses in the
  422. system and devices connected to them.
  423. This version uses sysfs (/sys/bus/usb/devices) only.
  424. config BUSYBOX_CONFIG_MKSWAP
  425. bool "mkswap"
  426. default BUSYBOX_DEFAULT_MKSWAP
  427. help
  428. The mkswap utility is used to configure a file or disk partition as
  429. Linux swap space. This allows Linux to use the entire file or
  430. partition as if it were additional RAM, which can greatly increase
  431. the capability of low-memory machines. This additional memory is
  432. much slower than real RAM, but can be very helpful at preventing your
  433. applications being killed by the Linux out of memory (OOM) killer.
  434. Once you have created swap space using 'mkswap' you need to enable
  435. the swap space using the 'swapon' utility.
  436. config BUSYBOX_CONFIG_FEATURE_MKSWAP_UUID
  437. bool "UUID support"
  438. default BUSYBOX_DEFAULT_FEATURE_MKSWAP_UUID
  439. depends on BUSYBOX_CONFIG_MKSWAP
  440. help
  441. Generate swap spaces with universally unique identifiers.
  442. config BUSYBOX_CONFIG_MORE
  443. bool "more"
  444. default BUSYBOX_DEFAULT_MORE
  445. help
  446. more is a simple utility which allows you to read text one screen
  447. sized page at a time. If you want to read text that is larger than
  448. the screen, and you are using anything faster than a 300 baud modem,
  449. you will probably find this utility very helpful. If you don't have
  450. any need to reading text files, you can leave this disabled.
  451. config BUSYBOX_CONFIG_MOUNT
  452. bool "mount"
  453. default BUSYBOX_DEFAULT_MOUNT
  454. select BUSYBOX_CONFIG_PLATFORM_LINUX
  455. help
  456. All files and filesystems in Unix are arranged into one big directory
  457. tree. The 'mount' utility is used to graft a filesystem onto a
  458. particular part of the tree. A filesystem can either live on a block
  459. device, or it can be accessible over the network, as is the case with
  460. NFS filesystems. Most people using BusyBox will also want to enable
  461. the 'mount' utility.
  462. config BUSYBOX_CONFIG_FEATURE_MOUNT_FAKE
  463. bool "Support option -f"
  464. default BUSYBOX_DEFAULT_FEATURE_MOUNT_FAKE
  465. depends on BUSYBOX_CONFIG_MOUNT
  466. help
  467. Enable support for faking a file system mount.
  468. config BUSYBOX_CONFIG_FEATURE_MOUNT_VERBOSE
  469. bool "Support option -v"
  470. default BUSYBOX_DEFAULT_FEATURE_MOUNT_VERBOSE
  471. depends on BUSYBOX_CONFIG_MOUNT
  472. help
  473. Enable multi-level -v[vv...] verbose messages. Useful if you
  474. debug mount problems and want to see what is exactly passed
  475. to the kernel.
  476. config BUSYBOX_CONFIG_FEATURE_MOUNT_HELPERS
  477. bool "Support mount helpers"
  478. default BUSYBOX_DEFAULT_FEATURE_MOUNT_HELPERS
  479. depends on BUSYBOX_CONFIG_MOUNT
  480. help
  481. Enable mounting of virtual file systems via external helpers.
  482. E.g. "mount obexfs#-b00.11.22.33.44.55 /mnt" will in effect call
  483. "obexfs -b00.11.22.33.44.55 /mnt"
  484. Also "mount -t sometype [-o opts] fs /mnt" will try
  485. "sometype [-o opts] fs /mnt" if simple mount syscall fails.
  486. The idea is to use such virtual filesystems in /etc/fstab.
  487. config BUSYBOX_CONFIG_FEATURE_MOUNT_LABEL
  488. bool "Support specifying devices by label or UUID"
  489. default BUSYBOX_DEFAULT_FEATURE_MOUNT_LABEL
  490. depends on BUSYBOX_CONFIG_MOUNT
  491. select BUSYBOX_CONFIG_VOLUMEID
  492. help
  493. This allows for specifying a device by label or uuid, rather than by
  494. name. This feature utilizes the same functionality as blkid/findfs.
  495. This also enables label or uuid support for swapon.
  496. config BUSYBOX_CONFIG_FEATURE_MOUNT_NFS
  497. bool "Support mounting NFS file systems on Linux < 2.6.23"
  498. default BUSYBOX_DEFAULT_FEATURE_MOUNT_NFS
  499. depends on BUSYBOX_CONFIG_MOUNT
  500. select BUSYBOX_CONFIG_FEATURE_HAVE_RPC
  501. select BUSYBOX_CONFIG_FEATURE_SYSLOG
  502. help
  503. Enable mounting of NFS file systems on Linux kernels prior
  504. to version 2.6.23. Note that in this case mounting of NFS
  505. over IPv6 will not be possible.
  506. Note that this option links in RPC support from libc,
  507. which is rather large (~10 kbytes on uclibc).
  508. config BUSYBOX_CONFIG_FEATURE_MOUNT_CIFS
  509. bool "Support mounting CIFS/SMB file systems"
  510. default BUSYBOX_DEFAULT_FEATURE_MOUNT_CIFS
  511. depends on BUSYBOX_CONFIG_MOUNT
  512. help
  513. Enable support for samba mounts.
  514. config BUSYBOX_CONFIG_FEATURE_MOUNT_FLAGS
  515. depends on BUSYBOX_CONFIG_MOUNT
  516. bool "Support lots of -o flags in mount"
  517. default BUSYBOX_DEFAULT_FEATURE_MOUNT_FLAGS
  518. help
  519. Without this, mount only supports ro/rw/remount. With this, it
  520. supports nosuid, suid, dev, nodev, exec, noexec, sync, async, atime,
  521. noatime, diratime, nodiratime, loud, bind, move, shared, slave,
  522. private, unbindable, rshared, rslave, rprivate, and runbindable.
  523. config BUSYBOX_CONFIG_FEATURE_MOUNT_FSTAB
  524. depends on BUSYBOX_CONFIG_MOUNT
  525. bool "Support /etc/fstab and -a"
  526. default BUSYBOX_DEFAULT_FEATURE_MOUNT_FSTAB
  527. help
  528. Support mount all and looking for files in /etc/fstab.
  529. config BUSYBOX_CONFIG_PIVOT_ROOT
  530. bool "pivot_root"
  531. default BUSYBOX_DEFAULT_PIVOT_ROOT
  532. select BUSYBOX_CONFIG_PLATFORM_LINUX
  533. help
  534. The pivot_root utility swaps the mount points for the root filesystem
  535. with some other mounted filesystem. This allows you to do all sorts
  536. of wild and crazy things with your Linux system and is far more
  537. powerful than 'chroot'.
  538. Note: This is for initrd in linux 2.4. Under initramfs (introduced
  539. in linux 2.6) use switch_root instead.
  540. config BUSYBOX_CONFIG_RDATE
  541. bool "rdate"
  542. default BUSYBOX_DEFAULT_RDATE
  543. help
  544. The rdate utility allows you to synchronize the date and time of your
  545. system clock with the date and time of a remote networked system using
  546. the RFC868 protocol, which is built into the inetd daemon on most
  547. systems.
  548. config BUSYBOX_CONFIG_RDEV
  549. bool "rdev"
  550. default BUSYBOX_DEFAULT_RDEV
  551. help
  552. Print the device node associated with the filesystem mounted at '/'.
  553. config BUSYBOX_CONFIG_READPROFILE
  554. bool "readprofile"
  555. default BUSYBOX_DEFAULT_READPROFILE
  556. #select PLATFORM_LINUX
  557. help
  558. This allows you to parse /proc/profile for basic profiling.
  559. config BUSYBOX_CONFIG_RTCWAKE
  560. bool "rtcwake"
  561. default BUSYBOX_DEFAULT_RTCWAKE
  562. select BUSYBOX_CONFIG_PLATFORM_LINUX
  563. help
  564. Enter a system sleep state until specified wakeup time.
  565. config BUSYBOX_CONFIG_SCRIPT
  566. bool "script"
  567. default BUSYBOX_DEFAULT_SCRIPT
  568. help
  569. The script makes typescript of terminal session.
  570. config BUSYBOX_CONFIG_SCRIPTREPLAY
  571. bool "scriptreplay"
  572. default BUSYBOX_DEFAULT_SCRIPTREPLAY
  573. help
  574. This program replays a typescript, using timing information
  575. given by script -t.
  576. config BUSYBOX_CONFIG_SETARCH
  577. bool "setarch"
  578. default BUSYBOX_DEFAULT_SETARCH
  579. select BUSYBOX_CONFIG_PLATFORM_LINUX
  580. help
  581. The linux32 utility is used to create a 32bit environment for the
  582. specified program (usually a shell). It only makes sense to have
  583. this util on a system that supports both 64bit and 32bit userland
  584. (like amd64/x86, ppc64/ppc, sparc64/sparc, etc...).
  585. config BUSYBOX_CONFIG_SWAPONOFF
  586. bool "swaponoff"
  587. default BUSYBOX_DEFAULT_SWAPONOFF
  588. select BUSYBOX_CONFIG_PLATFORM_LINUX
  589. help
  590. This option enables both the 'swapon' and the 'swapoff' utilities.
  591. Once you have created some swap space using 'mkswap', you also need
  592. to enable your swap space with the 'swapon' utility. The 'swapoff'
  593. utility is used, typically at system shutdown, to disable any swap
  594. space. If you are not using any swap space, you can leave this
  595. option disabled.
  596. config BUSYBOX_CONFIG_FEATURE_SWAPON_DISCARD
  597. bool "Support discard option -d"
  598. default BUSYBOX_DEFAULT_FEATURE_SWAPON_DISCARD
  599. depends on BUSYBOX_CONFIG_SWAPONOFF
  600. help
  601. Enable support for discarding swap area blocks at swapon and/or as
  602. the kernel frees them. This option enables both the -d option on
  603. 'swapon' and the 'discard' option for swap entries in /etc/fstab.
  604. config BUSYBOX_CONFIG_FEATURE_SWAPON_PRI
  605. bool "Support priority option -p"
  606. default BUSYBOX_DEFAULT_FEATURE_SWAPON_PRI
  607. depends on BUSYBOX_CONFIG_SWAPONOFF
  608. help
  609. Enable support for setting swap device priority in swapon.
  610. config BUSYBOX_CONFIG_SWITCH_ROOT
  611. bool "switch_root"
  612. default BUSYBOX_DEFAULT_SWITCH_ROOT
  613. select BUSYBOX_CONFIG_PLATFORM_LINUX
  614. help
  615. The switch_root utility is used from initramfs to select a new
  616. root device. Under initramfs, you have to use this instead of
  617. pivot_root. (Stop reading here if you don't care why.)
  618. Booting with initramfs extracts a gzipped cpio archive into rootfs
  619. (which is a variant of ramfs/tmpfs). Because rootfs can't be moved
  620. or unmounted*, pivot_root will not work from initramfs. Instead,
  621. switch_root deletes everything out of rootfs (including itself),
  622. does a mount --move that overmounts rootfs with the new root, and
  623. then execs the specified init program.
  624. * Because the Linux kernel uses rootfs internally as the starting
  625. and ending point for searching through the kernel's doubly linked
  626. list of active mount points. That's why.
  627. config BUSYBOX_CONFIG_UMOUNT
  628. bool "umount"
  629. default BUSYBOX_DEFAULT_UMOUNT
  630. select BUSYBOX_CONFIG_PLATFORM_LINUX
  631. help
  632. When you want to remove a mounted filesystem from its current mount
  633. point, for example when you are shutting down the system, the
  634. 'umount' utility is the tool to use. If you enabled the 'mount'
  635. utility, you almost certainly also want to enable 'umount'.
  636. config BUSYBOX_CONFIG_FEATURE_UMOUNT_ALL
  637. bool "Support option -a"
  638. default BUSYBOX_DEFAULT_FEATURE_UMOUNT_ALL
  639. depends on BUSYBOX_CONFIG_UMOUNT
  640. help
  641. Support -a option to unmount all currently mounted filesystems.
  642. comment "Common options for mount/umount"
  643. depends on BUSYBOX_CONFIG_MOUNT || BUSYBOX_CONFIG_UMOUNT
  644. config BUSYBOX_CONFIG_FEATURE_MOUNT_LOOP
  645. bool "Support loopback mounts"
  646. default BUSYBOX_DEFAULT_FEATURE_MOUNT_LOOP
  647. depends on BUSYBOX_CONFIG_MOUNT || BUSYBOX_CONFIG_UMOUNT
  648. help
  649. Enabling this feature allows automatic mounting of files (containing
  650. filesystem images) via the linux kernel's loopback devices.
  651. The mount command will detect you are trying to mount a file instead
  652. of a block device, and transparently associate the file with a
  653. loopback device. The umount command will also free that loopback
  654. device.
  655. You can still use the 'losetup' utility (to manually associate files
  656. with loop devices) if you need to do something advanced, such as
  657. specify an offset or cryptographic options to the loopback device.
  658. (If you don't want umount to free the loop device, use "umount -D".)
  659. config BUSYBOX_CONFIG_FEATURE_MOUNT_LOOP_CREATE
  660. bool "Create new loopback devices if needed"
  661. default BUSYBOX_DEFAULT_FEATURE_MOUNT_LOOP_CREATE
  662. depends on BUSYBOX_CONFIG_FEATURE_MOUNT_LOOP
  663. help
  664. Linux kernels >= 2.6.24 support unlimited loopback devices. They are
  665. allocated for use when trying to use a loop device. The loop device
  666. must however exist.
  667. This feature lets mount to try to create next /dev/loopN device
  668. if it does not find a free one.
  669. config BUSYBOX_CONFIG_FEATURE_MTAB_SUPPORT
  670. bool "Support for the old /etc/mtab file"
  671. default BUSYBOX_DEFAULT_FEATURE_MTAB_SUPPORT
  672. depends on BUSYBOX_CONFIG_MOUNT || BUSYBOX_CONFIG_UMOUNT
  673. select BUSYBOX_CONFIG_FEATURE_MOUNT_FAKE
  674. help
  675. Historically, Unix systems kept track of the currently mounted
  676. partitions in the file "/etc/mtab". These days, the kernel exports
  677. the list of currently mounted partitions in "/proc/mounts", rendering
  678. the old mtab file obsolete. (In modern systems, /etc/mtab should be
  679. a symlink to /proc/mounts.)
  680. The only reason to have mount maintain an /etc/mtab file itself is if
  681. your stripped-down embedded system does not have a /proc directory.
  682. If you must use this, keep in mind it's inherently brittle (for
  683. example a mount under chroot won't update it), can't handle modern
  684. features like separate per-process filesystem namespaces, requires
  685. that your /etc directory be writable, tends to get easily confused
  686. by --bind or --move mounts, won't update if you rename a directory
  687. that contains a mount point, and so on. (In brief: avoid.)
  688. About the only reason to use this is if you've removed /proc from
  689. your kernel.
  690. source package/utils/busybox/config/util-linux/volume_id/Config.in
  691. endmenu