#
# For a description of the syntax of this configuration file,
-# see scripts/kbuild/config-language.txt.
+# see docs/Kconfig-language.txt.
#
menu "Linux System Utilities"
INSERT
-config ACPID
- bool "acpid"
- default y
- select PLATFORM_LINUX
- help
- acpid listens to ACPI events coming either in textual form from
- /proc/acpi/event (though it is marked deprecated it is still widely
- used and _is_ a standard) or in binary form from specified evdevs
- (just use /dev/input/event*).
-
- It parses the event to retrieve ACTION and a possible PARAMETER.
- It then spawns /etc/acpi/<ACTION>[/<PARAMETER>] either via run-parts
- (if the resulting path is a directory) or directly as an executable.
-
- N.B. acpid relies on run-parts so have the latter installed.
-
-config FEATURE_ACPID_COMPAT
- bool "Accept and ignore redundant options"
- default y
- depends on ACPID
- help
- Accept and ignore compatibility options -g -m -s -S -v.
-
-config BLKID
- bool "blkid"
- default y
- select PLATFORM_LINUX
- select VOLUMEID
- help
- Lists labels and UUIDs of all filesystems.
- WARNING:
- With all submodules selected, it will add ~8k to busybox.
-
-config FEATURE_BLKID_TYPE
- bool "Print filesystem type"
- default n
- depends on BLKID
- help
- Show TYPE="filesystem type"
-
-config DMESG
- bool "dmesg"
- default y
- select PLATFORM_LINUX
- help
- dmesg is used to examine or control the kernel ring buffer. When the
- Linux kernel prints messages to the system log, they are stored in
- the kernel ring buffer. You can use dmesg to print the kernel's ring
- buffer, clear the kernel ring buffer, change the size of the kernel
- ring buffer, and change the priority level at which kernel messages
- are also logged to the system console. Enable this option if you
- wish to enable the 'dmesg' utility.
-
-config FEATURE_DMESG_PRETTY
- bool "Pretty dmesg output"
- default y
- depends on DMESG
- help
- If you wish to scrub the syslog level from the output, say 'Y' here.
- The syslog level is a string prefixed to every line with the form
- "<#>".
-
- With this option you will see:
- # dmesg
- Linux version 2.6.17.4 .....
- BIOS-provided physical RAM map:
- BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
-
- Without this option you will see:
- # dmesg
- <5>Linux version 2.6.17.4 .....
- <6>BIOS-provided physical RAM map:
- <6> BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
-
-config FBSET
- bool "fbset"
- default y
- select PLATFORM_LINUX
- help
- fbset is used to show or change the settings of a Linux frame buffer
- device. The frame buffer device provides a simple and unique
- interface to access a graphics display. Enable this option
- if you wish to enable the 'fbset' utility.
-
-config FEATURE_FBSET_FANCY
- bool "Turn on extra fbset options"
- default y
- depends on FBSET
- help
- This option enables extended fbset options, allowing one to set the
- framebuffer size, color depth, etc. interface to access a graphics
- display. Enable this option if you wish to enable extended fbset
- options.
-
-config FEATURE_FBSET_READMODE
- bool "Turn on fbset readmode support"
- default y
- depends on FBSET
- help
- This option allows fbset to read the video mode database stored by
- default as /etc/fb.modes, which can be used to set frame buffer
- device to pre-defined video modes.
-
-config FDFLUSH
- bool "fdflush"
- default y
- select PLATFORM_LINUX
- help
- fdflush is only needed when changing media on slightly-broken
- removable media drives. It is used to make Linux believe that a
- hardware disk-change switch has been actuated, which causes Linux to
- forget anything it has cached from the previous media. If you have
- such a slightly-broken drive, you will need to run fdflush every time
- you change a disk. Most people have working hardware and can safely
- leave this disabled.
-
-config FDFORMAT
- bool "fdformat"
- default y
- select PLATFORM_LINUX
- help
- fdformat is used to low-level format a floppy disk.
-
-config FDISK
- bool "fdisk"
- default y
- select PLATFORM_LINUX
- help
- The fdisk utility is used to divide hard disks into one or more
- logical disks, which are generally called partitions. This utility
- can be used to list and edit the set of partitions or BSD style
- 'disk slices' that are defined on a hard drive.
-
-config FDISK_SUPPORT_LARGE_DISKS
- bool "Support over 4GB disks"
- default y
- depends on FDISK
- depends on !LFS # with LFS no special code is needed
- help
- Enable this option to support large disks > 4GB.
-
-config FEATURE_FDISK_WRITABLE
- bool "Write support"
- default y
- depends on FDISK
- help
- Enabling this option allows you to create or change a partition table
- and write those changes out to disk. If you leave this option
- disabled, you will only be able to view the partition table.
-
-config FEATURE_AIX_LABEL
- bool "Support AIX disklabels"
- default n
- depends on FDISK && FEATURE_FDISK_WRITABLE
- help
- Enabling this option allows you to create or change AIX disklabels.
- Most people can safely leave this option disabled.
-
-config FEATURE_SGI_LABEL
- bool "Support SGI disklabels"
- default n
- depends on FDISK && FEATURE_FDISK_WRITABLE
- help
- Enabling this option allows you to create or change SGI disklabels.
- Most people can safely leave this option disabled.
-
-config FEATURE_SUN_LABEL
- bool "Support SUN disklabels"
- default n
- depends on FDISK && FEATURE_FDISK_WRITABLE
- help
- Enabling this option allows you to create or change SUN disklabels.
- Most people can safely leave this option disabled.
-
-config FEATURE_OSF_LABEL
- bool "Support BSD disklabels"
- default n
- depends on FDISK && FEATURE_FDISK_WRITABLE
- help
- Enabling this option allows you to create or change BSD disklabels
- and define and edit BSD disk slices.
-
-config FEATURE_GPT_LABEL
- bool "Support GPT disklabels"
- default n
- depends on FDISK && FEATURE_FDISK_WRITABLE
- help
- Enabling this option allows you to view GUID Partition Table
- disklabels.
-
-config FEATURE_FDISK_ADVANCED
- bool "Support expert mode"
- default y
- depends on FDISK && FEATURE_FDISK_WRITABLE
- help
- Enabling this option allows you to do terribly unsafe things like
- define arbitrary drive geometry, move the beginning of data in a
- partition, and similarly evil things. Unless you have a very good
- reason you would be wise to leave this disabled.
-
-config FINDFS
- bool "findfs"
- default y
- select PLATFORM_LINUX
- select VOLUMEID
- help
- Prints the name of a filesystem with given label or UUID.
- WARNING:
- With all submodules selected, it will add ~8k to busybox.
-
-config FLOCK
- bool "flock"
- default y
- help
- Manage locks from shell scripts
-
-config FREERAMDISK
- bool "freeramdisk"
- default y
- select PLATFORM_LINUX
- help
- Linux allows you to create ramdisks. This utility allows you to
- delete them and completely free all memory that was used for the
- ramdisk. For example, if you boot Linux into a ramdisk and later
- pivot_root, you may want to free the memory that is allocated to the
- ramdisk. If you have no use for freeing memory from a ramdisk, leave
- this disabled.
-
-config FSCK_MINIX
- bool "fsck_minix"
- default y
- help
- The minix filesystem is a nice, small, compact, read-write filesystem
- with little overhead. It is not a journaling filesystem however and
- can experience corruption if it is not properly unmounted or if the
- power goes off in the middle of a write. This utility allows you to
- check for and attempt to repair any corruption that occurs to a minix
- filesystem.
-
-config MKFS_EXT2
- bool "mkfs_ext2"
- default y
- select PLATFORM_LINUX
- help
- Utility to create EXT2 filesystems.
-
-config MKFS_MINIX
- bool "mkfs_minix"
- default y
- select PLATFORM_LINUX
- help
- The minix filesystem is a nice, small, compact, read-write filesystem
- with little overhead. If you wish to be able to create minix
- filesystems this utility will do the job for you.
-
-config FEATURE_MINIX2
- bool "Support Minix fs v2 (fsck_minix/mkfs_minix)"
- default y
- depends on FSCK_MINIX || MKFS_MINIX
- help
- If you wish to be able to create version 2 minix filesystems, enable
- this. If you enabled 'mkfs_minix' then you almost certainly want to
- be using the version 2 filesystem support.
-
-config MKFS_REISER
- bool "mkfs_reiser"
- default n
- select PLATFORM_LINUX
- help
- Utility to create ReiserFS filesystems.
- Note: this applet needs a lot of testing and polishing.
-
-config MKFS_VFAT
- bool "mkfs_vfat"
- default y
- select PLATFORM_LINUX
- help
- Utility to create FAT32 filesystems.
-
-config GETOPT
- bool "getopt"
- default y
- help
- The getopt utility is used to break up (parse) options in command
- lines to make it easy to write complex shell scripts that also check
- for legal (and illegal) options. If you want to write horribly
- complex shell scripts, or use some horribly complex shell script
- written by others, this utility may be for you. Most people will
- wisely leave this disabled.
-
-config FEATURE_GETOPT_LONG
- bool "Support option -l"
- default y if LONG_OPTS
- depends on GETOPT
- help
- Enable support for long options (option -l).
-
-config HEXDUMP
- bool "hexdump"
- default y
- help
- The hexdump utility is used to display binary data in a readable
- way that is comparable to the output from most hex editors.
-
-config FEATURE_HEXDUMP_REVERSE
- bool "Support -R, reverse of 'hexdump -Cv'"
- default y
- depends on HEXDUMP
- help
- The hexdump utility is used to display binary data in an ascii
- readable way. This option creates binary data from an ascii input.
- NB: this option is non-standard. It's unwise to use it in scripts
- aimed to be portable.
-
-config HD
- bool "hd"
- default y
- depends on HEXDUMP
- help
- hd is an alias to hexdump -C.
-
-config HWCLOCK
- bool "hwclock"
- default y
- select PLATFORM_LINUX
- help
- The hwclock utility is used to read and set the hardware clock
- on a system. This is primarily used to set the current time on
- shutdown in the hardware clock, so the hardware will keep the
- correct time when Linux is _not_ running.
-
-config FEATURE_HWCLOCK_LONG_OPTIONS
- bool "Support long options (--hctosys,...)"
- default y
- depends on HWCLOCK && LONG_OPTS
- help
- By default, the hwclock utility only uses short options. If you
- are overly fond of its long options, such as --hctosys, --utc, etc)
- then enable this option.
-
-config FEATURE_HWCLOCK_ADJTIME_FHS
- bool "Use FHS /var/lib/hwclock/adjtime"
- default n # util-linux-ng in Fedora 13 still uses /etc/adjtime
- depends on HWCLOCK
- help
- Starting with FHS 2.3, the adjtime state file is supposed to exist
- at /var/lib/hwclock/adjtime instead of /etc/adjtime. If you wish
- to use the FHS behavior, answer Y here, otherwise answer N for the
- classic /etc/adjtime path.
-
- pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO
-
-config IPCRM
- bool "ipcrm"
- default y
- help
- The ipcrm utility allows the removal of System V interprocess
- communication (IPC) objects and the associated data structures
- from the system.
-
-config IPCS
- bool "ipcs"
- default y
- select PLATFORM_LINUX
- help
- The ipcs utility is used to provide information on the currently
- allocated System V interprocess (IPC) objects in the system.
-
-config LOSETUP
- bool "losetup"
- default y
- select PLATFORM_LINUX
- help
- losetup is used to associate or detach a loop device with a regular
- file or block device, and to query the status of a loop device. This
- version does not currently support enabling data encryption.
-
-config LSPCI
- bool "lspci"
- default y
- #select PLATFORM_LINUX
- help
- lspci is a utility for displaying information about PCI buses in the
- system and devices connected to them.
-
- This version uses sysfs (/sys/bus/pci/devices) only.
-
-config LSUSB
- bool "lsusb"
- default y
- #select PLATFORM_LINUX
- help
- lsusb is a utility for displaying information about USB buses in the
- system and devices connected to them.
-
- This version uses sysfs (/sys/bus/usb/devices) only.
-
-config MKSWAP
- bool "mkswap"
- default y
- help
- The mkswap utility is used to configure a file or disk partition as
- Linux swap space. This allows Linux to use the entire file or
- partition as if it were additional RAM, which can greatly increase
- the capability of low-memory machines. This additional memory is
- much slower than real RAM, but can be very helpful at preventing your
- applications being killed by the Linux out of memory (OOM) killer.
- Once you have created swap space using 'mkswap' you need to enable
- the swap space using the 'swapon' utility.
-
-config FEATURE_MKSWAP_UUID
- bool "UUID support"
- default y
- depends on MKSWAP
- help
- Generate swap spaces with universally unique identifiers.
-
-config MORE
- bool "more"
- default y
- help
- more is a simple utility which allows you to read text one screen
- sized page at a time. If you want to read text that is larger than
- the screen, and you are using anything faster than a 300 baud modem,
- you will probably find this utility very helpful. If you don't have
- any need to reading text files, you can leave this disabled.
-
-config MOUNT
- bool "mount"
- default y
- select PLATFORM_LINUX
- help
- All files and filesystems in Unix are arranged into one big directory
- tree. The 'mount' utility is used to graft a filesystem onto a
- particular part of the tree. A filesystem can either live on a block
- device, or it can be accessible over the network, as is the case with
- NFS filesystems. Most people using BusyBox will also want to enable
- the 'mount' utility.
-
-config FEATURE_MOUNT_FAKE
- bool "Support option -f"
- default y
- depends on MOUNT
- help
- Enable support for faking a file system mount.
-
-config FEATURE_MOUNT_VERBOSE
- bool "Support option -v"
- default y
- depends on MOUNT
- help
- Enable multi-level -v[vv...] verbose messages. Useful if you
- debug mount problems and want to see what is exactly passed
- to the kernel.
-
-config FEATURE_MOUNT_HELPERS
- bool "Support mount helpers"
- default n
- depends on MOUNT
- help
- Enable mounting of virtual file systems via external helpers.
- E.g. "mount obexfs#-b00.11.22.33.44.55 /mnt" will in effect call
- "obexfs -b00.11.22.33.44.55 /mnt"
- Also "mount -t sometype [-o opts] fs /mnt" will try
- "sometype [-o opts] fs /mnt" if simple mount syscall fails.
- The idea is to use such virtual filesystems in /etc/fstab.
-
-config FEATURE_MOUNT_LABEL
- bool "Support specifying devices by label or UUID"
- default y
- depends on MOUNT
- select VOLUMEID
- help
- This allows for specifying a device by label or uuid, rather than by
- name. This feature utilizes the same functionality as blkid/findfs.
- This also enables label or uuid support for swapon.
-
-config FEATURE_MOUNT_NFS
- bool "Support mounting NFS file systems on Linux < 2.6.23"
- default n
- depends on MOUNT
- select FEATURE_HAVE_RPC
- select FEATURE_SYSLOG
- help
- Enable mounting of NFS file systems on Linux kernels prior
- to version 2.6.23. Note that in this case mounting of NFS
- over IPv6 will not be possible.
-
- Note that this option links in RPC support from libc,
- which is rather large (~10 kbytes on uclibc).
-
-config FEATURE_MOUNT_CIFS
- bool "Support mounting CIFS/SMB file systems"
- default y
- depends on MOUNT
- help
- Enable support for samba mounts.
-
-config FEATURE_MOUNT_FLAGS
- depends on MOUNT
- bool "Support lots of -o flags in mount"
- default y
- help
- Without this, mount only supports ro/rw/remount. With this, it
- supports nosuid, suid, dev, nodev, exec, noexec, sync, async, atime,
- noatime, diratime, nodiratime, loud, bind, move, shared, slave,
- private, unbindable, rshared, rslave, rprivate, and runbindable.
-
-config FEATURE_MOUNT_FSTAB
- depends on MOUNT
- bool "Support /etc/fstab and -a"
- default y
- help
- Support mount all and looking for files in /etc/fstab.
-
-config PIVOT_ROOT
- bool "pivot_root"
- default y
- select PLATFORM_LINUX
- help
- The pivot_root utility swaps the mount points for the root filesystem
- with some other mounted filesystem. This allows you to do all sorts
- of wild and crazy things with your Linux system and is far more
- powerful than 'chroot'.
-
- Note: This is for initrd in linux 2.4. Under initramfs (introduced
- in linux 2.6) use switch_root instead.
-
-config RDATE
- bool "rdate"
- default y
- help
- The rdate utility allows you to synchronize the date and time of your
- system clock with the date and time of a remote networked system using
- the RFC868 protocol, which is built into the inetd daemon on most
- systems.
-
-config RDEV
- bool "rdev"
- default y
- help
- Print the device node associated with the filesystem mounted at '/'.
-
-config READPROFILE
- bool "readprofile"
- default y
- #select PLATFORM_LINUX
- help
- This allows you to parse /proc/profile for basic profiling.
-
-config RTCWAKE
- bool "rtcwake"
- default y
- select PLATFORM_LINUX
- help
- Enter a system sleep state until specified wakeup time.
-
-config SCRIPT
- bool "script"
- default y
- help
- The script makes typescript of terminal session.
-
-config SCRIPTREPLAY
- bool "scriptreplay"
- default y
- help
- This program replays a typescript, using timing information
- given by script -t.
-
-config SETARCH
- bool "setarch"
- default y
- select PLATFORM_LINUX
- help
- The linux32 utility is used to create a 32bit environment for the
- specified program (usually a shell). It only makes sense to have
- this util on a system that supports both 64bit and 32bit userland
- (like amd64/x86, ppc64/ppc, sparc64/sparc, etc...).
-
-config SWAPONOFF
- bool "swaponoff"
- default y
- select PLATFORM_LINUX
- help
- This option enables both the 'swapon' and the 'swapoff' utilities.
- Once you have created some swap space using 'mkswap', you also need
- to enable your swap space with the 'swapon' utility. The 'swapoff'
- utility is used, typically at system shutdown, to disable any swap
- space. If you are not using any swap space, you can leave this
- option disabled.
-
-config FEATURE_SWAPON_DISCARD
- bool "Support discard option -d"
- default y
- depends on SWAPONOFF
- help
- Enable support for discarding swap area blocks at swapon and/or as
- the kernel frees them. This option enables both the -d option on
- 'swapon' and the 'discard' option for swap entries in /etc/fstab.
-
-config FEATURE_SWAPON_PRI
- bool "Support priority option -p"
- default y
- depends on SWAPONOFF
- help
- Enable support for setting swap device priority in swapon.
-
-config SWITCH_ROOT
- bool "switch_root"
- default y
- select PLATFORM_LINUX
- help
- The switch_root utility is used from initramfs to select a new
- root device. Under initramfs, you have to use this instead of
- pivot_root. (Stop reading here if you don't care why.)
-
- Booting with initramfs extracts a gzipped cpio archive into rootfs
- (which is a variant of ramfs/tmpfs). Because rootfs can't be moved
- or unmounted*, pivot_root will not work from initramfs. Instead,
- switch_root deletes everything out of rootfs (including itself),
- does a mount --move that overmounts rootfs with the new root, and
- then execs the specified init program.
-
- * Because the Linux kernel uses rootfs internally as the starting
- and ending point for searching through the kernel's doubly linked
- list of active mount points. That's why.
-
-config UMOUNT
- bool "umount"
- default y
- select PLATFORM_LINUX
- help
- When you want to remove a mounted filesystem from its current mount
- point, for example when you are shutting down the system, the
- 'umount' utility is the tool to use. If you enabled the 'mount'
- utility, you almost certainly also want to enable 'umount'.
-
-config FEATURE_UMOUNT_ALL
- bool "Support option -a"
- default y
- depends on UMOUNT
- help
- Support -a option to unmount all currently mounted filesystems.
-
comment "Common options for mount/umount"
depends on MOUNT || UMOUNT
default y
depends on MOUNT || UMOUNT
help
- Enabling this feature allows automatic mounting of files (containing
- filesystem images) via the linux kernel's loopback devices.
- The mount command will detect you are trying to mount a file instead
- of a block device, and transparently associate the file with a
- loopback device. The umount command will also free that loopback
- device.
+ Enabling this feature allows automatic mounting of files (containing
+ filesystem images) via the linux kernel's loopback devices.
+ The mount command will detect you are trying to mount a file instead
+ of a block device, and transparently associate the file with a
+ loopback device. The umount command will also free that loopback
+ device.
- You can still use the 'losetup' utility (to manually associate files
- with loop devices) if you need to do something advanced, such as
- specify an offset or cryptographic options to the loopback device.
- (If you don't want umount to free the loop device, use "umount -D".)
+ You can still use the 'losetup' utility (to manually associate files
+ with loop devices) if you need to do something advanced, such as
+ specify an offset or cryptographic options to the loopback device.
+ (If you don't want umount to free the loop device, use "umount -D".)
config FEATURE_MOUNT_LOOP_CREATE
bool "Create new loopback devices if needed"
default y
depends on FEATURE_MOUNT_LOOP
help
- Linux kernels >= 2.6.24 support unlimited loopback devices. They are
- allocated for use when trying to use a loop device. The loop device
- must however exist.
+ Linux kernels >= 2.6.24 support unlimited loopback devices. They are
+ allocated for use when trying to use a loop device. The loop device
+ must however exist.
- This feature lets mount to try to create next /dev/loopN device
- if it does not find a free one.
+ This feature lets mount to try to create next /dev/loopN device
+ if it does not find a free one.
config FEATURE_MTAB_SUPPORT
- bool "Support for the old /etc/mtab file"
+ bool "Support old /etc/mtab file"
default n
depends on MOUNT || UMOUNT
select FEATURE_MOUNT_FAKE
help
- Historically, Unix systems kept track of the currently mounted
- partitions in the file "/etc/mtab". These days, the kernel exports
- the list of currently mounted partitions in "/proc/mounts", rendering
- the old mtab file obsolete. (In modern systems, /etc/mtab should be
- a symlink to /proc/mounts.)
-
- The only reason to have mount maintain an /etc/mtab file itself is if
- your stripped-down embedded system does not have a /proc directory.
- If you must use this, keep in mind it's inherently brittle (for
- example a mount under chroot won't update it), can't handle modern
- features like separate per-process filesystem namespaces, requires
- that your /etc directory be writable, tends to get easily confused
- by --bind or --move mounts, won't update if you rename a directory
- that contains a mount point, and so on. (In brief: avoid.)
-
- About the only reason to use this is if you've removed /proc from
- your kernel.
+ Historically, Unix systems kept track of the currently mounted
+ partitions in the file "/etc/mtab". These days, the kernel exports
+ the list of currently mounted partitions in "/proc/mounts", rendering
+ the old mtab file obsolete. (In modern systems, /etc/mtab should be
+ a symlink to /proc/mounts.)
+
+ The only reason to have mount maintain an /etc/mtab file itself is if
+ your stripped-down embedded system does not have a /proc directory.
+ If you must use this, keep in mind it's inherently brittle (for
+ example a mount under chroot won't update it), can't handle modern
+ features like separate per-process filesystem namespaces, requires
+ that your /etc directory be writable, tends to get easily confused
+ by --bind or --move mounts, won't update if you rename a directory
+ that contains a mount point, and so on. (In brief: avoid.)
+
+ About the only reason to use this is if you've removed /proc from
+ your kernel.
source util-linux/volume_id/Config.in