[package] busybox: update to v1.16.1 (based on v1.16.0 update patch from Peter Wagner)
[openwrt/svn-archive/archive.git] / package / busybox / config / util-linux / Config.in
1 #
2 # For a description of the syntax of this configuration file,
3 # see scripts/kbuild/config-language.txt.
4 #
5
6 menu "Linux System Utilities"
7
8 config BUSYBOX_CONFIG_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
23 config BUSYBOX_CONFIG_FEATURE_ACPID_COMPAT
24 bool "Accept and ignore redundant options"
25 default n
26 depends on BUSYBOX_CONFIG_ACPID
27 help
28 Accept and ignore compatibility options -g -m -s -S -v.
29
30 config BUSYBOX_CONFIG_BLKID
31 bool "blkid"
32 default n
33 select BUSYBOX_CONFIG_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
39 config BUSYBOX_CONFIG_DMESG
40 bool "dmesg"
41 default y
42 help
43 dmesg is used to examine or control the kernel ring buffer. When the
44 Linux kernel prints messages to the system log, they are stored in
45 the kernel ring buffer. You can use dmesg to print the kernel's ring
46 buffer, clear the kernel ring buffer, change the size of the kernel
47 ring buffer, and change the priority level at which kernel messages
48 are also logged to the system console. Enable this option if you
49 wish to enable the 'dmesg' utility.
50
51 config BUSYBOX_CONFIG_FEATURE_DMESG_PRETTY
52 bool "Pretty dmesg output"
53 default y
54 depends on BUSYBOX_CONFIG_DMESG
55 help
56 If you wish to scrub the syslog level from the output, say 'Y' here.
57 The syslog level is a string prefixed to every line with the form
58 "<#>".
59
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
72 config BUSYBOX_CONFIG_FBSET
73 bool "fbset"
74 default n
75 help
76 fbset is used to show or change the settings of a Linux frame buffer
77 device. The frame buffer device provides a simple and unique
78 interface to access a graphics display. Enable this option
79 if you wish to enable the 'fbset' utility.
80
81 config BUSYBOX_CONFIG_FEATURE_FBSET_FANCY
82 bool "Turn on extra fbset options"
83 default n
84 depends on BUSYBOX_CONFIG_FBSET
85 help
86 This option enables extended fbset options, allowing one to set the
87 framebuffer size, color depth, etc. interface to access a graphics
88 display. Enable this option if you wish to enable extended fbset
89 options.
90
91 config BUSYBOX_CONFIG_FEATURE_FBSET_READMODE
92 bool "Turn on fbset readmode support"
93 default n
94 depends on BUSYBOX_CONFIG_FBSET
95 help
96 This option allows fbset to read the video mode database stored by
97 default n /etc/fb.modes, which can be used to set frame buffer
98 device to pre-defined video modes.
99
100 config BUSYBOX_CONFIG_FDFLUSH
101 bool "fdflush"
102 default n
103 help
104 fdflush is only needed when changing media on slightly-broken
105 removable media drives. It is used to make Linux believe that a
106 hardware disk-change switch has been actuated, which causes Linux to
107 forget anything it has cached from the previous media. If you have
108 such a slightly-broken drive, you will need to run fdflush every time
109 you change a disk. Most people have working hardware and can safely
110 leave this disabled.
111
112 config BUSYBOX_CONFIG_FDFORMAT
113 bool "fdformat"
114 default n
115 help
116 fdformat is used to low-level format a floppy disk.
117
118 config BUSYBOX_CONFIG_FDISK
119 bool "fdisk"
120 default n
121 help
122 The fdisk utility is used to divide hard disks into one or more
123 logical disks, which are generally called partitions. This utility
124 can be used to list and edit the set of partitions or BSD style
125 'disk slices' that are defined on a hard drive.
126
127 config BUSYBOX_CONFIG_FDISK_SUPPORT_LARGE_DISKS
128 bool "Support over 4GB disks"
129 default y
130 depends on BUSYBOX_CONFIG_FDISK
131 help
132 Enable this option to support large disks > 4GB.
133
134 config BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
135 bool "Write support"
136 default n
137 depends on BUSYBOX_CONFIG_FDISK
138 help
139 Enabling this option allows you to create or change a partition table
140 and write those changes out to disk. If you leave this option
141 disabled, you will only be able to view the partition table.
142
143 config BUSYBOX_CONFIG_FEATURE_AIX_LABEL
144 bool "Support AIX disklabels"
145 default n
146 depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
147 help
148 Enabling this option allows you to create or change AIX disklabels.
149 Most people can safely leave this option disabled.
150
151 config BUSYBOX_CONFIG_FEATURE_SGI_LABEL
152 bool "Support SGI disklabels"
153 default n
154 depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
155 help
156 Enabling this option allows you to create or change SGI disklabels.
157 Most people can safely leave this option disabled.
158
159 config BUSYBOX_CONFIG_FEATURE_SUN_LABEL
160 bool "Support SUN disklabels"
161 default n
162 depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
163 help
164 Enabling this option allows you to create or change SUN disklabels.
165 Most people can safely leave this option disabled.
166
167 config BUSYBOX_CONFIG_FEATURE_OSF_LABEL
168 bool "Support BSD disklabels"
169 default n
170 depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
171 help
172 Enabling this option allows you to create or change BSD disklabels
173 and define and edit BSD disk slices.
174
175 config BUSYBOX_CONFIG_FEATURE_FDISK_ADVANCED
176 bool "Support expert mode"
177 default n
178 depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
179 help
180 Enabling this option allows you to do terribly unsafe things like
181 define arbitrary drive geometry, move the beginning of data in a
182 partition, and similarly evil things. Unless you have a very good
183 reason you would be wise to leave this disabled.
184
185 config BUSYBOX_CONFIG_FINDFS
186 bool "findfs"
187 default n
188 select BUSYBOX_CONFIG_VOLUMEID
189 help
190 Prints the name of a filesystem with given label or UUID.
191 WARNING:
192 With all submodules selected, it will add ~8k to busybox.
193
194 config BUSYBOX_CONFIG_FREERAMDISK
195 bool "freeramdisk"
196 default n
197 help
198 Linux allows you to create ramdisks. This utility allows you to
199 delete them and completely free all memory that was used for the
200 ramdisk. For example, if you boot Linux into a ramdisk and later
201 pivot_root, you may want to free the memory that is allocated to the
202 ramdisk. If you have no use for freeing memory from a ramdisk, leave
203 this disabled.
204
205 config BUSYBOX_CONFIG_FSCK_MINIX
206 bool "fsck_minix"
207 default n
208 help
209 The minix filesystem is a nice, small, compact, read-write filesystem
210 with little overhead. It is not a journaling filesystem however and
211 can experience corruption if it is not properly unmounted or if the
212 power goes off in the middle of a write. This utility allows you to
213 check for and attempt to repair any corruption that occurs to a minix
214 filesystem.
215
216 config BUSYBOX_CONFIG_MKFS_EXT2
217 bool "mkfs_ext2"
218 default n
219 help
220 Utility to create EXT2 filesystems.
221
222 config BUSYBOX_CONFIG_MKFS_MINIX
223 bool "mkfs_minix"
224 default n
225 help
226 The minix filesystem is a nice, small, compact, read-write filesystem
227 with little overhead. If you wish to be able to create minix
228 filesystems this utility will do the job for you.
229
230 comment "Minix filesystem support"
231 depends on BUSYBOX_CONFIG_FSCK_MINIX || BUSYBOX_CONFIG_MKFS_MINIX
232
233 config BUSYBOX_CONFIG_FEATURE_MINIX2
234 bool "Support Minix fs v2 (fsck_minix/mkfs_minix)"
235 default n
236 depends on BUSYBOX_CONFIG_FSCK_MINIX || BUSYBOX_CONFIG_MKFS_MINIX
237 help
238 If you wish to be able to create version 2 minix filesystems, enable
239 this. If you enabled 'mkfs_minix' then you almost certainly want to
240 be using the version 2 filesystem support.
241
242 config BUSYBOX_CONFIG_MKFS_REISER
243 bool "mkfs_reiser"
244 default n
245 help
246 Utility to create ReiserFS filesystems.
247
248 config BUSYBOX_CONFIG_MKFS_VFAT
249 bool "mkfs_vfat"
250 default n
251 help
252 Utility to create FAT32 filesystems.
253
254 config BUSYBOX_CONFIG_GETOPT
255 bool "getopt"
256 default n
257 help
258 The getopt utility is used to break up (parse) options in command
259 lines to make it easy to write complex shell scripts that also check
260 for legal (and illegal) options. If you want to write horribly
261 complex shell scripts, or use some horribly complex shell script
262 written by others, this utility may be for you. Most people will
263 wisely leave this disabled.
264
265 config BUSYBOX_CONFIG_FEATURE_GETOPT_LONG
266 bool "Support option -l"
267 default n if BUSYBOX_CONFIG_LONG_OPTS
268 depends on BUSYBOX_CONFIG_GETOPT
269 help
270 Enable support for long options (option -l).
271
272 config BUSYBOX_CONFIG_HEXDUMP
273 bool "hexdump"
274 default y
275 help
276 The hexdump utility is used to display binary data in a readable
277 way that is comparable to the output from most hex editors.
278
279 config BUSYBOX_CONFIG_FEATURE_HEXDUMP_REVERSE
280 bool "Support -R, reverse of 'hexdump -Cv'"
281 default n
282 depends on BUSYBOX_CONFIG_HEXDUMP
283 help
284 The hexdump utility is used to display binary data in an ascii
285 readable way. This option creates binary data from an ascii input.
286 NB: this option is non-standard. It's unwise to use it in scripts
287 aimed to be portable.
288
289 config BUSYBOX_CONFIG_HD
290 bool "hd"
291 default n
292 select BUSYBOX_CONFIG_HEXDUMP
293 help
294 hd is an alias to hexdump -C.
295
296 config BUSYBOX_CONFIG_HWCLOCK
297 bool "hwclock"
298 default y
299 help
300 The hwclock utility is used to read and set the hardware clock
301 on a system. This is primarily used to set the current time on
302 shutdown in the hardware clock, so the hardware will keep the
303 correct time when Linux is _not_ running.
304
305 config BUSYBOX_CONFIG_FEATURE_HWCLOCK_LONG_OPTIONS
306 bool "Support long options (--hctosys,...)"
307 default n
308 depends on BUSYBOX_CONFIG_HWCLOCK && BUSYBOX_CONFIG_LONG_OPTS
309 help
310 By default, the hwclock utility only uses short options. If you
311 are overly fond of its long options, such as --hctosys, --utc, etc)
312 then enable this option.
313
314 config BUSYBOX_CONFIG_FEATURE_HWCLOCK_ADJTIME_FHS
315 bool "Use FHS /var/lib/hwclock/adjtime"
316 default n
317 depends on BUSYBOX_CONFIG_HWCLOCK
318 help
319 Starting with FHS 2.3, the adjtime state file is supposed to exist
320 at /var/lib/hwclock/adjtime instead of /etc/adjtime. If you wish
321 to use the FHS behavior, answer Y here, otherwise answer N for the
322 classic /etc/adjtime path.
323
324 pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO
325
326 config BUSYBOX_CONFIG_IPCRM
327 bool "ipcrm"
328 default n
329 select BUSYBOX_CONFIG_FEATURE_SUID
330 help
331 The ipcrm utility allows the removal of System V interprocess
332 communication (IPC) objects and the associated data structures
333 from the system.
334
335 config BUSYBOX_CONFIG_IPCS
336 bool "ipcs"
337 default n
338 select BUSYBOX_CONFIG_FEATURE_SUID
339 help
340 The ipcs utility is used to provide information on the currently
341 allocated System V interprocess (IPC) objects in the system.
342
343 config BUSYBOX_CONFIG_LOSETUP
344 bool "losetup"
345 default n
346 help
347 losetup is used to associate or detach a loop device with a regular
348 file or block device, and to query the status of a loop device. This
349 version does not currently support enabling data encryption.
350
351 config BUSYBOX_CONFIG_LSPCI
352 bool "lspci"
353 default n
354 help
355 lspci is a utility for displaying information about PCI buses in the
356 system and devices connected to them.
357
358 This version uses sysfs (/sys/bus/pci/devices) only.
359
360 config BUSYBOX_CONFIG_LSUSB
361 bool "lsusb"
362 default n
363 help
364 lsusb is a utility for displaying information about USB buses in the
365 system and devices connected to them.
366
367 This version uses sysfs (/sys/bus/usb/devices) only.
368
369 config BUSYBOX_CONFIG_MDEV
370 bool "mdev"
371 default n
372 help
373 mdev is a mini-udev implementation for dynamically creating device
374 nodes in the /dev directory.
375
376 For more information, please see docs/mdev.txt
377
378 config BUSYBOX_CONFIG_FEATURE_MDEV_CONF
379 bool "Support /etc/mdev.conf"
380 default n
381 depends on BUSYBOX_CONFIG_MDEV
382 help
383 Add support for the mdev config file to control ownership and
384 permissions of the device nodes.
385
386 For more information, please see docs/mdev.txt
387
388 config BUSYBOX_CONFIG_FEATURE_MDEV_RENAME
389 bool "Support subdirs/symlinks"
390 default n
391 depends on BUSYBOX_CONFIG_FEATURE_MDEV_CONF
392 help
393 Add support for renaming devices and creating symlinks.
394
395 For more information, please see docs/mdev.txt
396
397 config BUSYBOX_CONFIG_FEATURE_MDEV_RENAME_REGEXP
398 bool "Support regular expressions substitutions when renaming device"
399 default n
400 depends on BUSYBOX_CONFIG_FEATURE_MDEV_RENAME
401 help
402 Add support for regular expressions substitutions when renaming
403 device.
404
405 config BUSYBOX_CONFIG_FEATURE_MDEV_EXEC
406 bool "Support command execution at device addition/removal"
407 default n
408 depends on BUSYBOX_CONFIG_FEATURE_MDEV_CONF
409 help
410 This adds support for an optional field to /etc/mdev.conf for
411 executing commands when devices are created/removed.
412
413 For more information, please see docs/mdev.txt
414
415 config BUSYBOX_CONFIG_FEATURE_MDEV_LOAD_FIRMWARE
416 bool "Support loading of firmwares"
417 default n
418 depends on BUSYBOX_CONFIG_MDEV
419 help
420 Some devices need to load firmware before they can be usable.
421
422 These devices will request userspace look up the files in
423 /lib/firmware/ and if it exists, send it to the kernel for
424 loading into the hardware.
425
426 config BUSYBOX_CONFIG_MKSWAP
427 bool "mkswap"
428 default n
429 help
430 The mkswap utility is used to configure a file or disk partition as
431 Linux swap space. This allows Linux to use the entire file or
432 partition as if it were additional RAM, which can greatly increase
433 the capability of low-memory machines. This additional memory is
434 much slower than real RAM, but can be very helpful at preventing your
435 applications being killed by the Linux out of memory (OOM) killer.
436 Once you have created swap space using 'mkswap' you need to enable
437 the swap space using the 'swapon' utility.
438
439 config BUSYBOX_CONFIG_FEATURE_MKSWAP_UUID
440 bool "UUID support"
441 default n
442 depends on BUSYBOX_CONFIG_MKSWAP
443 help
444 Generate swap spaces with universally unique identifiers.
445
446 config BUSYBOX_CONFIG_MORE
447 bool "more"
448 default n
449 help
450 more is a simple utility which allows you to read text one screen
451 sized page at a time. If you want to read text that is larger than
452 the screen, and you are using anything faster than a 300 baud modem,
453 you will probably find this utility very helpful. If you don't have
454 any need to reading text files, you can leave this disabled.
455
456 config BUSYBOX_CONFIG_FEATURE_USE_TERMIOS
457 bool "Use termios to manipulate the screen"
458 default n
459 depends on BUSYBOX_CONFIG_MORE || BUSYBOX_CONFIG_TOP
460 help
461 This option allows utilities such as 'more' and 'top' to determine
462 the size of the screen. If you leave this disabled, your utilities
463 that display things on the screen will be especially primitive and
464 will be unable to determine the current screen size, and will be
465 unable to move the cursor.
466
467 config BUSYBOX_CONFIG_VOLUMEID
468 bool #No description makes it a hidden option
469 default n
470
471 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_EXT
472 bool "Ext filesystem"
473 default n
474 depends on BUSYBOX_CONFIG_VOLUMEID
475 help
476 TODO
477
478 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_BTRFS
479 bool "btrfs filesystem"
480 default n
481 depends on BUSYBOX_CONFIG_VOLUMEID
482 help
483 TODO
484
485 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_REISERFS
486 bool "Reiser filesystem"
487 default n
488 depends on BUSYBOX_CONFIG_VOLUMEID
489 help
490 TODO
491
492 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_FAT
493 bool "fat filesystem"
494 default n
495 depends on BUSYBOX_CONFIG_VOLUMEID
496 help
497 TODO
498
499 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_HFS
500 bool "hfs filesystem"
501 default n
502 depends on BUSYBOX_CONFIG_VOLUMEID
503 help
504 TODO
505
506 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_JFS
507 bool "jfs filesystem"
508 default n
509 depends on BUSYBOX_CONFIG_VOLUMEID
510 help
511 TODO
512
513 ### config FEATURE_VOLUMEID_UFS
514 ### bool "ufs filesystem"
515 ### default n
516 ### depends on VOLUMEID
517 ### help
518 ### TODO
519
520 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_XFS
521 bool "xfs filesystem"
522 default n
523 depends on BUSYBOX_CONFIG_VOLUMEID
524 help
525 TODO
526
527 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_NTFS
528 bool "ntfs filesystem"
529 default n
530 depends on BUSYBOX_CONFIG_VOLUMEID
531 help
532 TODO
533
534 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_ISO9660
535 bool "iso9660 filesystem"
536 default n
537 depends on BUSYBOX_CONFIG_VOLUMEID
538 help
539 TODO
540
541 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_UDF
542 bool "udf filesystem"
543 default n
544 depends on BUSYBOX_CONFIG_VOLUMEID
545 help
546 TODO
547
548 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_LUKS
549 bool "luks filesystem"
550 default n
551 depends on BUSYBOX_CONFIG_VOLUMEID
552 help
553 TODO
554
555 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_LINUXSWAP
556 bool "linux swap filesystem"
557 default n
558 depends on BUSYBOX_CONFIG_VOLUMEID
559 help
560 TODO
561
562 ### config FEATURE_VOLUMEID_LVM
563 ### bool "lvm"
564 ### default n
565 ### depends on VOLUMEID
566 ### help
567 ### TODO
568
569 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_CRAMFS
570 bool "cramfs filesystem"
571 default n
572 depends on BUSYBOX_CONFIG_VOLUMEID
573 help
574 TODO
575
576 ### config FEATURE_VOLUMEID_HPFS
577 ### bool "hpfs filesystem"
578 ### default n
579 ### depends on VOLUMEID
580 ### help
581 ### TODO
582
583 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_ROMFS
584 bool "romfs filesystem"
585 default n
586 depends on BUSYBOX_CONFIG_VOLUMEID
587 help
588 TODO
589
590 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_SYSV
591 bool "sysv filesystem"
592 default n
593 depends on BUSYBOX_CONFIG_VOLUMEID
594 help
595 TODO
596
597 ### config FEATURE_VOLUMEID_MINIX
598 ### bool "minix filesystem"
599 ### default n
600 ### depends on VOLUMEID
601 ### help
602 ### TODO
603
604 ### These only detect partition tables - not used (yet?)
605 ### config FEATURE_VOLUMEID_MAC
606 ### bool "mac filesystem"
607 ### default n
608 ### depends on VOLUMEID
609 ### help
610 ### TODO
611 ###
612 ### config FEATURE_VOLUMEID_MSDOS
613 ### bool "msdos filesystem"
614 ### default n
615 ### depends on VOLUMEID
616 ### help
617 ### TODO
618
619 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_OCFS2
620 bool "ocfs2 filesystem"
621 default n
622 depends on BUSYBOX_CONFIG_VOLUMEID
623 help
624 TODO
625
626 ### config FEATURE_VOLUMEID_HIGHPOINTRAID
627 ### bool "highpoint raid"
628 ### default n
629 ### depends on VOLUMEID
630 ### help
631 ### TODO
632
633 ### config FEATURE_VOLUMEID_ISWRAID
634 ### bool "intel raid"
635 ### default n
636 ### depends on VOLUMEID
637 ### help
638 ### TODO
639
640 ### config FEATURE_VOLUMEID_LSIRAID
641 ### bool "lsi raid"
642 ### default n
643 ### depends on VOLUMEID
644 ### help
645 ### TODO
646
647 ### config FEATURE_VOLUMEID_VIARAID
648 ### bool "via raid"
649 ### default n
650 ### depends on VOLUMEID
651 ### help
652 ### TODO
653
654 ### config FEATURE_VOLUMEID_SILICONRAID
655 ### bool "silicon raid"
656 ### default n
657 ### depends on VOLUMEID
658 ### help
659 ### TODO
660
661 ### config FEATURE_VOLUMEID_NVIDIARAID
662 ### bool "nvidia raid"
663 ### default n
664 ### depends on VOLUMEID
665 ### help
666 ### TODO
667
668 ### config FEATURE_VOLUMEID_PROMISERAID
669 ### bool "promise raid"
670 ### default n
671 ### depends on VOLUMEID
672 ### help
673 ### TODO
674
675 config BUSYBOX_CONFIG_FEATURE_VOLUMEID_LINUXRAID
676 bool "linuxraid"
677 default n
678 depends on BUSYBOX_CONFIG_VOLUMEID
679 help
680 TODO
681
682 config BUSYBOX_CONFIG_MOUNT
683 bool "mount"
684 default y
685 help
686 All files and filesystems in Unix are arranged into one big directory
687 tree. The 'mount' utility is used to graft a filesystem onto a
688 particular part of the tree. A filesystem can either live on a block
689 device, or it can be accessible over the network, as is the case with
690 NFS filesystems. Most people using BusyBox will also want to enable
691 the 'mount' utility.
692
693 config BUSYBOX_CONFIG_FEATURE_MOUNT_FAKE
694 bool "Support option -f"
695 default n
696 depends on BUSYBOX_CONFIG_MOUNT
697 help
698 Enable support for faking a file system mount.
699
700 config BUSYBOX_CONFIG_FEATURE_MOUNT_VERBOSE
701 bool "Support option -v"
702 default n
703 depends on BUSYBOX_CONFIG_MOUNT
704 help
705 Enable multi-level -v[vv...] verbose messages. Useful if you
706 debug mount problems and want to see what is exactly passed
707 to the kernel.
708
709 config BUSYBOX_CONFIG_FEATURE_MOUNT_HELPERS
710 bool "Support mount helpers"
711 default n
712 depends on BUSYBOX_CONFIG_MOUNT
713 help
714 Enable mounting of virtual file systems via external helpers.
715 E.g. "mount obexfs#-b00.11.22.33.44.55 /mnt" will in effect call
716 "obexfs -b00.11.22.33.44.55 /mnt"
717 Also "mount -t sometype [-o opts] fs /mnt" will try
718 "sometype [-o opts] fs /mnt" if simple mount syscall fails.
719 The idea is to use such virtual filesystems in /etc/fstab.
720
721 config BUSYBOX_CONFIG_FEATURE_MOUNT_LABEL
722 bool "Support specifiying devices by label or UUID"
723 default n
724 depends on BUSYBOX_CONFIG_MOUNT
725 select BUSYBOX_CONFIG_VOLUMEID
726 help
727 This allows for specifying a device by label or uuid, rather than by
728 name. This feature utilizes the same functionality as blkid/findfs.
729 This also enables label or uuid support for swapon.
730
731 config BUSYBOX_CONFIG_FEATURE_MOUNT_NFS
732 bool "Support mounting NFS file systems"
733 default y
734 depends on BUSYBOX_CONFIG_MOUNT
735 select BUSYBOX_CONFIG_FEATURE_HAVE_RPC
736 select BUSYBOX_CONFIG_FEATURE_SYSLOG
737 help
738 Enable mounting of NFS file systems.
739
740 config BUSYBOX_CONFIG_FEATURE_MOUNT_CIFS
741 bool "Support mounting CIFS/SMB file systems"
742 default y
743 depends on BUSYBOX_CONFIG_MOUNT
744 help
745 Enable support for samba mounts.
746
747 config BUSYBOX_CONFIG_FEATURE_MOUNT_FLAGS
748 depends on BUSYBOX_CONFIG_MOUNT
749 bool "Support lots of -o flags in mount"
750 default y
751 help
752 Without this, mount only supports ro/rw/remount. With this, it
753 supports nosuid, suid, dev, nodev, exec, noexec, sync, async, atime,
754 noatime, diratime, nodiratime, loud, bind, move, shared, slave,
755 private, unbindable, rshared, rslave, rprivate, and runbindable.
756
757 config BUSYBOX_CONFIG_FEATURE_MOUNT_FSTAB
758 depends on BUSYBOX_CONFIG_MOUNT
759 bool "Support /etc/fstab and -a"
760 default y
761 help
762 Support mount all and looking for files in /etc/fstab.
763
764 config BUSYBOX_CONFIG_PIVOT_ROOT
765 bool "pivot_root"
766 default y
767 help
768 The pivot_root utility swaps the mount points for the root filesystem
769 with some other mounted filesystem. This allows you to do all sorts
770 of wild and crazy things with your Linux system and is far more
771 powerful than 'chroot'.
772
773 Note: This is for initrd in linux 2.4. Under initramfs (introduced
774 in linux 2.6) use switch_root instead.
775
776 config BUSYBOX_CONFIG_RDATE
777 bool "rdate"
778 default y
779 help
780 The rdate utility allows you to synchronize the date and time of your
781 system clock with the date and time of a remote networked system using
782 the RFC868 protocol, which is built into the inetd daemon on most
783 systems.
784
785 config BUSYBOX_CONFIG_RDEV
786 bool "rdev"
787 default n
788 help
789 Print the device node associated with the filesystem mounted at '/'.
790
791 config BUSYBOX_CONFIG_READPROFILE
792 bool "readprofile"
793 default n
794 help
795 This allows you to parse /proc/profile for basic profiling.
796
797 config BUSYBOX_CONFIG_RTCWAKE
798 bool "rtcwake"
799 default n
800 help
801 Enter a system sleep state until specified wakeup time.
802
803 config BUSYBOX_CONFIG_SCRIPT
804 bool "script"
805 default n
806 help
807 The script makes typescript of terminal session.
808
809 config BUSYBOX_CONFIG_SCRIPTREPLAY
810 bool "scriptreplay"
811 default n
812 help
813 This program replays a typescript, using timing information
814 given by script -t.
815
816 config BUSYBOX_CONFIG_SETARCH
817 bool "setarch"
818 default n
819 help
820 The linux32 utility is used to create a 32bit environment for the
821 specified program (usually a shell). It only makes sense to have
822 this util on a system that supports both 64bit and 32bit userland
823 (like amd64/x86, ppc64/ppc, sparc64/sparc, etc...).
824
825 config BUSYBOX_CONFIG_SWAPONOFF
826 bool "swaponoff"
827 default n
828 help
829 This option enables both the 'swapon' and the 'swapoff' utilities.
830 Once you have created some swap space using 'mkswap', you also need
831 to enable your swap space with the 'swapon' utility. The 'swapoff'
832 utility is used, typically at system shutdown, to disable any swap
833 space. If you are not using any swap space, you can leave this
834 option disabled.
835
836 config BUSYBOX_CONFIG_FEATURE_SWAPON_PRI
837 bool "Support priority option -p"
838 default n
839 depends on BUSYBOX_CONFIG_SWAPONOFF
840 help
841 Enable support for setting swap device priority in swapon.
842
843 config BUSYBOX_CONFIG_SWITCH_ROOT
844 bool "switch_root"
845 default y
846 help
847 The switch_root utility is used from initramfs to select a new
848 root device. Under initramfs, you have to use this instead of
849 pivot_root. (Stop reading here if you don't care why.)
850
851 Booting with initramfs extracts a gzipped cpio archive into rootfs
852 (which is a variant of ramfs/tmpfs). Because rootfs can't be moved
853 or unmounted*, pivot_root will not work from initramfs. Instead,
854 switch_root deletes everything out of rootfs (including itself),
855 does a mount --move that overmounts rootfs with the new root, and
856 then execs the specified init program.
857
858 * Because the Linux kernel uses rootfs internally as the starting
859 and ending point for searching through the kernel's doubly linked
860 list of active mount points. That's why.
861
862 config BUSYBOX_CONFIG_UMOUNT
863 bool "umount"
864 default y
865 help
866 When you want to remove a mounted filesystem from its current mount
867 point, for example when you are shutting down the system, the
868 'umount' utility is the tool to use. If you enabled the 'mount'
869 utility, you almost certainly also want to enable 'umount'.
870
871 config BUSYBOX_CONFIG_FEATURE_UMOUNT_ALL
872 bool "Support option -a"
873 default y
874 depends on BUSYBOX_CONFIG_UMOUNT
875 help
876 Support -a option to unmount all currently mounted filesystems.
877
878 comment "Common options for mount/umount"
879 depends on BUSYBOX_CONFIG_MOUNT || BUSYBOX_CONFIG_UMOUNT
880
881 config BUSYBOX_CONFIG_FEATURE_MOUNT_LOOP
882 bool "Support loopback mounts"
883 default y
884 depends on BUSYBOX_CONFIG_MOUNT || BUSYBOX_CONFIG_UMOUNT
885 help
886 Enabling this feature allows automatic mounting of files (containing
887 filesystem images) via the linux kernel's loopback devices.
888 The mount command will detect you are trying to mount a file instead
889 of a block device, and transparently associate the file with a
890 loopback device. The umount command will also free that loopback
891 device.
892
893 You can still use the 'losetup' utility (to manually associate files
894 with loop devices) if you need to do something advanced, such as
895 specify an offset or cryptographic options to the loopback device.
896 (If you don't want umount to free the loop device, use "umount -D".)
897
898 config BUSYBOX_CONFIG_FEATURE_MTAB_SUPPORT
899 bool "Support for the old /etc/mtab file"
900 default n
901 depends on BUSYBOX_CONFIG_MOUNT || BUSYBOX_CONFIG_UMOUNT
902 select BUSYBOX_CONFIG_FEATURE_MOUNT_FAKE
903 help
904 Historically, Unix systems kept track of the currently mounted
905 partitions in the file "/etc/mtab". These days, the kernel exports
906 the list of currently mounted partitions in "/proc/mounts", rendering
907 the old mtab file obsolete. (In modern systems, /etc/mtab should be
908 a symlink to /proc/mounts.)
909
910 The only reason to have mount maintain an /etc/mtab file itself is if
911 your stripped-down embedded system does not have a /proc directory.
912 If you must use this, keep in mind it's inherently brittle (for
913 example a mount under chroot won't update it), can't handle modern
914 features like separate per-process filesystem namespaces, requires
915 that your /etc directory be writeable, tends to get easily confused
916 by --bind or --move mounts, won't update if you rename a directory
917 that contains a mount point, and so on. (In brief: avoid.)
918
919 About the only reason to use this is if you've removed /proc from
920 your kernel.
921
922 endmenu