source: MondoRescue/branches/2.2.5/mindi-busybox/util-linux/Config.in@ 1765

#
# For a description of the syntax of this configuration file,
# see scripts/kbuild/config-language.txt.
#

menu "Linux System Utilities"

config DMESG
    bool "dmesg"
    default n
    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 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 FEATURE_FBSET_FANCY
    bool "Turn on extra fbset options"
    default n
    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 n
    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 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 FDFORMAT
    bool "fdformat"
    default n
    help
      fdformat is used to low-level format a floppy disk.

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 FDISK_SUPPORT_LARGE_DISKS
    bool "support over 4GB disks"
    default y
    depends on FDISK
    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_FDISK_ADVANCED
    bool "Support expert mode"
    default n
    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 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 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 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 FSCK_MINIX || MKFS_MINIX

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 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 HEXDUMP
    bool "hexdump"
    default n
    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 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 FEATURE_HWCLOCK_LONG_OPTIONS
    bool "Support long options (--hctosys,...)"
    default n
    depends on HWCLOCK && 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 FEATURE_HWCLOCK_ADJTIME_FHS
    bool "Use FHS /var/lib/hwclock/adjtime"
    default y
    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.

      http://www.pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO

config IPCRM
    bool "ipcrm"
    default n
    select 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 IPCS
    bool "ipcs"
    default n
    select FEATURE_SUID
    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 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 MDEV
    bool "mdev"
    default n
    help
      mdev is a mini-udev implementation for dynamically creating device
      nodes in the /dev directory.

      For more information, please see docs/mdev.txt

config FEATURE_MDEV_CONF
    bool "Support /etc/mdev.conf"
    default n
    depends on MDEV
    help
      Add support for the mdev config file to control ownership and
      permissions of the device nodes.

      For more information, please see docs/mdev.txt

config FEATURE_MDEV_EXEC
    bool "Support command execution at device addition/removal"
    default n
    depends on FEATURE_MDEV_CONF
    help
      This adds support for an optional field to /etc/mdev.conf for
      executing commands when devices are created/removed.

      For more information, please see docs/mdev.txt

config FEATURE_MDEV_LOAD_FIRMWARE
    bool "Support loading of firmwares"
    default n
    depends on MDEV
    help
      Some devices need to load firmware before they can be usable.

      These devices will request userspace look up the files in
      /lib/firmware/ and if it exists, send it to the kernel for
      loading into the hardware.

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 FEATURE_MKSWAP_V0
    bool "version 0 support"
    default n
    depends on MKSWAP
#   depends on MKSWAP && 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 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 FEATURE_USE_TERMIOS
    bool "Use termios to manipulate the screen"
    default y
    depends on 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 MOUNT
    bool "mount"
    default n
    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_NFS
    bool "Support mounting NFS file systems"
    default n
    depends on MOUNT
    select FEATURE_HAVE_RPC
    select FEATURE_SYSLOG
    help
      Enable mounting of NFS file systems.

config FEATURE_MOUNT_CIFS
    bool "Support mounting CIFS/SMB file systems"
    default n
    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 n
    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 n
    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 READPROFILE
    bool "readprofile"
    default n
    help
      This allows you to parse /proc/profile for basic profiling.

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 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 SWITCH_ROOT
    bool "switch_root"
    default n
    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 n
    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 "umount -a option"
    default n
    depends on UMOUNT
    help
      Support -a option to unmount all currently mounted filesystems.

comment "Common options for mount/umount"
    depends on MOUNT || UMOUNT

config FEATURE_MOUNT_LOOP
    bool "Support loopback mounts"
    default n
    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.

      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_MTAB_SUPPORT
    bool "Support for the old /etc/mtab file"
    default n
    depends on MOUNT || 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