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+#
+# For a description of the syntax of this configuration file,
+# see scripts/kbuild/config-language.txt.
+#
+
+menu "Linux System Utilities"
+
+config BUSYBOX_CONFIG_DMESG
+ bool "dmesg"
+ default y
+ 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 BUSYBOX_CONFIG_FBSET
+ bool "fbset"
+ default n
+ 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 BUSYBOX_CONFIG_FEATURE_FBSET_FANCY
+ bool "Turn on extra fbset options"
+ default n
+ depends on BUSYBOX_CONFIG_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 BUSYBOX_CONFIG_FEATURE_FBSET_READMODE
+ bool "Turn on fbset readmode support"
+ default n
+ depends on BUSYBOX_CONFIG_FBSET
+ help
+ This option allows fbset to read the video mode database stored by
+ default n /etc/fb.modes, which can be used to set frame buffer
+ device to pre-defined video modes.
+
+config BUSYBOX_CONFIG_FDFLUSH
+ bool "fdflush"
+ default n
+ 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 BUSYBOX_CONFIG_FDFORMAT
+ bool "fdformat"
+ default n
+ help
+ fdformat is used to low-level format a floppy disk.
+
+config BUSYBOX_CONFIG_FDISK
+ bool "fdisk"
+ default n
+ 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 BUSYBOX_FDISK_SUPPORT_LARGE_DISKS
+ bool
+ default y
+ depends on BUSYBOX_CONFIG_FDISK
+ help
+ Enable this option to support large disks > 4GB.
+
+config BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
+ bool "Write support"
+ default n
+ depends on BUSYBOX_CONFIG_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 BUSYBOX_CONFIG_FEATURE_AIX_LABEL
+ bool "Support AIX disklabels"
+ default n
+ depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
+ help
+ Enabling this option allows you to create or change AIX disklabels.
+ Most people can safely leave this option disabled.
+
+config BUSYBOX_CONFIG_FEATURE_SGI_LABEL
+ bool "Support SGI disklabels"
+ default n
+ depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
+ help
+ Enabling this option allows you to create or change SGI disklabels.
+ Most people can safely leave this option disabled.
+
+config BUSYBOX_CONFIG_FEATURE_SUN_LABEL
+ bool "Support SUN disklabels"
+ default n
+ depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
+ help
+ Enabling this option allows you to create or change SUN disklabels.
+ Most people can safely leave this option disabled.
+
+config BUSYBOX_CONFIG_FEATURE_OSF_LABEL
+ bool "Support BSD disklabels"
+ default n
+ depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_FEATURE_FDISK_WRITABLE
+ help
+ Enabling this option allows you to create or change BSD disklabels
+ and define and edit BSD disk slices.
+
+config BUSYBOX_CONFIG_FEATURE_FDISK_ADVANCED
+ bool "Support expert mode"
+ default n
+ depends on BUSYBOX_CONFIG_FDISK && BUSYBOX_CONFIG_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 BUSYBOX_CONFIG_FREERAMDISK
+ bool "freeramdisk"
+ default n
+ 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 BUSYBOX_CONFIG_FSCK_MINIX
+ bool "fsck_minix"
+ default n
+ 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 BUSYBOX_CONFIG_MKFS_MINIX
+ bool "mkfs_minix"
+ default n
+ 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.
+
+comment "Minix filesystem support"
+ depends on BUSYBOX_CONFIG_FSCK_MINIX || BUSYBOX_CONFIG_MKFS_MINIX
+
+config BUSYBOX_CONFIG_FEATURE_MINIX2
+ bool "Support Minix fs v2 (fsck_minix/mkfs_minix)"
+ default n
+ depends on BUSYBOX_CONFIG_FSCK_MINIX || BUSYBOX_CONFIG_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 BUSYBOX_CONFIG_GETOPT
+ bool "getopt"
+ default n
+ 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 BUSYBOX_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 BUSYBOX_CONFIG_HWCLOCK
+ bool "hwclock"
+ default n
+ 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 BUSYBOX_CONFIG_FEATURE_HWCLOCK_LONG_OPTIONS
+ bool "Support long options (--hctosys,...)"
+ default n
+ depends on BUSYBOX_CONFIG_HWCLOCK && BUSYBOX_CONFIG_GETOPT_LONG
+ 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 BUSYBOX_CONFIG_FEATURE_HWCLOCK_ADJTIME_FHS
+ bool "Use FHS /var/lib/hwclock/adjtime"
+ default n
+ depends on BUSYBOX_CONFIG_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.
+
+ http://www.pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO
+
+config BUSYBOX_CONFIG_IPCRM
+ bool "ipcrm"
+ default n
+ select BUSYBOX_CONFIG_FEATURE_SUID
+ help
+ The ipcrm utility allows the removal of System V interprocess
+ communication (IPC) objects and the associated data structures
+ from the system.
+
+config BUSYBOX_CONFIG_IPCS
+ bool "ipcs"
+ default n
+ select BUSYBOX_CONFIG_FEATURE_SUID
+ help
+ The ipcs utility is used to provide information on the currently
+ allocated System V interprocess (IPC) objects in the system.
+
+config BUSYBOX_CONFIG_LOSETUP
+ bool "losetup"
+ default n
+ 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 BUSYBOX_CONFIG_MDEV
+ bool "mdev"
+ default n
+ help
+ mdev is a mini-udev implementation: call it with -s to populate
+ /dev from /sys, then "echo /sbin/mdev > /proc/sys/kernel/hotplug" to
+ have it handle hotplug events afterwards. Device names are taken
+ from sysfs.
+
+config BUSYBOX_CONFIG_FEATURE_MDEV_CONF
+ bool "Support /etc/mdev.conf"
+ default n
+ depends on BUSYBOX_CONFIG_MDEV
+ help
+ The mdev config file contains lines that look like:
+
+ hd[a-z][0-9]* 0:3 660
+
+ That's device name (with regex match), uid:gid, and permissions.
+
+ Config file parsing stops on the first matching line. If no config
+ entry is matched, devices are created with default 0:0 660. (Make
+ the last line match .* to override this.)
+
+config BUSYBOX_CONFIG_FEATURE_MDEV_EXEC
+ bool "Support command execution at device addition/removal"
+ default n
+ depends on BUSYBOX_CONFIG_FEATURE_MDEV_CONF
+ help
+ This adds support for an optional field to /etc/mdev.conf, consisting
+ of a special character and a command line to run after creating the
+ corresponding device(s) and before removing, ala:
+
+ hdc root:cdrom 660 *ln -s $MDEV cdrom
+
+ The $MDEV environment variable is set to the name of the device.
+
+ The special characters and their meanings are:
+ @ Run after creating the device.
+ $ Run before removing the device.
+ * Run both after creating and before removing the device.
+
+ Commands are executed via system() so you need /bin/sh, meaning you
+ probably want to select a default shell in the Shells menu.
+
+config BUSYBOX_CONFIG_MKSWAP
+ bool "mkswap"
+ default n
+ 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 BUSYBOX_CONFIG_FEATURE_MKSWAP_V0
+ bool "version 0 support"
+ default n
+ depends on BUSYBOX_CONFIG_MKSWAP
+# depends on BUSYBOX_CONFIG_MKSWAP && BUSYBOX_CONFIG_DEPRECATED
+ help
+ Enable support for the old v0 style.
+ If your kernel is older than 2.1.117, then v0 support is the
+ only option.
+
+config BUSYBOX_CONFIG_MORE
+ bool "more"
+ default n
+ 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 BUSYBOX_CONFIG_FEATURE_USE_TERMIOS
+ bool "Use termios to manipulate the screen"
+ default y
+ depends on BUSYBOX_CONFIG_MORE
+ help
+ This option allows utilities such as 'more' and 'top' to determine
+ the size of the screen. If you leave this disabled, your utilities
+ that display things on the screen will be especially primitive and
+ will be unable to determine the current screen size, and will be
+ unable to move the cursor.
+
+config BUSYBOX_CONFIG_MOUNT
+ bool "mount"
+ default y
+ 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 BUSYBOX_CONFIG_FEATURE_MOUNT_NFS
+ bool "Support mounting NFS file systems"
+ default y
+ depends on BUSYBOX_CONFIG_MOUNT
+ help
+ Enable mounting of NFS file systems.
+
+config BUSYBOX_CONFIG_PIVOT_ROOT
+ bool "pivot_root"
+ default y
+ 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 BUSYBOX_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 BUSYBOX_CONFIG_READPROFILE
+ bool "readprofile"
+ default n
+ help
+ This allows you to parse /proc/profile for basic profiling.
+
+config BUSYBOX_CONFIG_SETARCH
+ bool "setarch"
+ default n
+ 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 BUSYBOX_CONFIG_SWAPONOFF
+ bool "swaponoff"
+ default n
+ 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 BUSYBOX_CONFIG_SWITCH_ROOT
+ bool "switch_root"
+ default y
+ 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 BUSYBOX_CONFIG_UMOUNT
+ bool "umount"
+ default y
+ 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 BUSYBOX_CONFIG_FEATURE_UMOUNT_ALL
+ bool "umount -a option"
+ default y
+ depends on BUSYBOX_CONFIG_UMOUNT
+ help
+ Support -a option to unmount all currently mounted filesystems.
+
+comment "Common options for mount/umount"
+ depends on BUSYBOX_CONFIG_MOUNT || BUSYBOX_CONFIG_UMOUNT
+
+config BUSYBOX_CONFIG_FEATURE_MOUNT_LOOP
+ bool "Support loopback mounts"
+ default y
+ depends on BUSYBOX_CONFIG_MOUNT || BUSYBOX_CONFIG_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.
+
+ 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 BUSYBOX_CONFIG_FEATURE_MTAB_SUPPORT
+ bool "Support for the old /etc/mtab file"
+ default n
+ depends on BUSYBOX_CONFIG_MOUNT || BUSYBOX_CONFIG_UMOUNT
+ 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 writeable, 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.
+
+endmenu
+