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