menu "System configuration"
  
  choice
  	prompt "Root FS skeleton"
  
  config BR2_ROOTFS_SKELETON_DEFAULT
  	bool "default target skeleton"
  	help
  	  Use default target skeleton
  
  config BR2_ROOTFS_SKELETON_CUSTOM
  	bool "custom target skeleton"
  	help
  	  Use custom target skeleton.
  
  endchoice
  
  if BR2_ROOTFS_SKELETON_CUSTOM
  
  config BR2_ROOTFS_SKELETON_CUSTOM_PATH
  	string "custom target skeleton path"
  	help
  	  Path to custom target skeleton.
  
  # dummy config so merged /usr workarounds can also be activated for
  # custom rootfs skeleton
  config BR2_ROOTFS_MERGED_USR
  
  endif
  
  if BR2_ROOTFS_SKELETON_DEFAULT
  
  config BR2_TARGET_GENERIC_HOSTNAME
  	string "System hostname"
  	default "buildroot"
  	help
  	  Select system hostname to be stored in /etc/hostname.
  
  	  Leave empty to not create /etc/hostname, or to keep the
  	  one from a custom skeleton.
  
  config BR2_TARGET_GENERIC_ISSUE
  	string "System banner"
  	default "Welcome to Buildroot"
  	help
  	  Select system banner (/etc/issue) to be displayed at login.
  
  	  Leave empty to not create /etc/issue, or to keep the
  	  one from a custom skeleton.
  
  endif
  
  choice
  	bool "Passwords encoding"
  	default BR2_TARGET_GENERIC_PASSWD_MD5
  	help
  	  Choose the password encoding scheme to use when Buildroot
  	  needs to encode a password (eg. the root password, below).
  
  	  Note: this is used at build-time, and *not* at runtime.
  
  config BR2_TARGET_GENERIC_PASSWD_MD5
  	bool "md5"
  	help
  	  Use MD5 to encode passwords.
  
  	  The default. Wildly available, and pretty good.
  	  Although pretty strong, MD5 is now an old hash function, and
  	  suffers from some weaknesses, which makes it susceptible to
  	  brute-force attacks.
  
  config BR2_TARGET_GENERIC_PASSWD_SHA256
  	bool "sha-256"
  	help
  	  Use SHA256 to encode passwords.
  
  	  Very strong, but not ubiquitous, although available in glibc
  	  for some time now. Choose only if you are sure your C library
  	  understands SHA256 passwords.
  
  config BR2_TARGET_GENERIC_PASSWD_SHA512
  	bool "sha-512"
  	help
  	  Use SHA512 to encode passwords.
  
  	  Extremely strong, but not ubiquitous, although available in glibc
  	  for some time now. Choose only if you are sure your C library
  	  understands SHA512 passwords.
  
  endchoice # Passwd encoding
  
  config BR2_TARGET_GENERIC_PASSWD_METHOD
  	string
  	default "md5"       if BR2_TARGET_GENERIC_PASSWD_MD5
  	default "sha-256"   if BR2_TARGET_GENERIC_PASSWD_SHA256
  	default "sha-512"   if BR2_TARGET_GENERIC_PASSWD_SHA512
  
  choice
  	prompt "Init system"
  	default BR2_INIT_BUSYBOX
  
  config BR2_INIT_BUSYBOX
  	bool "BusyBox"
  	select BR2_PACKAGE_BUSYBOX
  	select BR2_PACKAGE_INITSCRIPTS
  
  config BR2_INIT_SYSV
  	bool "systemV"
  	depends on BR2_USE_MMU # sysvinit
  	select BR2_PACKAGE_BUSYBOX_SHOW_OTHERS # sysvinit
  	select BR2_PACKAGE_INITSCRIPTS
  	select BR2_PACKAGE_SYSVINIT
  
  # In Buildroot, we decided not to support a split-usr when systemd is
  # used as an init system. This is a design decision, not a systemd
  # issue. Thus the select is with BR2_INIT_SYSTEMD (below) rather than
  # with BR2_PACKAGE_SYSTEMD.
  config BR2_INIT_SYSTEMD
  	bool "systemd"
  	depends on BR2_PACKAGE_SYSTEMD_ARCH_SUPPORTS
  	depends on BR2_TOOLCHAIN_USES_GLIBC
  	depends on BR2_USE_WCHAR
  	depends on BR2_TOOLCHAIN_HAS_THREADS
  	depends on BR2_TOOLCHAIN_HAS_SSP
  	depends on BR2_USE_MMU
  	depends on !BR2_STATIC_LIBS
  	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
  	select BR2_ROOTFS_MERGED_USR
  	select BR2_PACKAGE_SYSTEMD
  	select BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW
  
  comment "systemd needs a glibc toolchain, headers >= 3.10"
  	depends on !(BR2_TOOLCHAIN_USES_GLIBC \
  		&& BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10)
  
  config BR2_INIT_NONE
  	bool "None"
  	help
  	  Buildroot will not install any init system. You will
  	  have to provide your own, either with a new package
  	  or with a rootfs-overlay.
  
  endchoice
  
  choice
  	prompt "/dev management" if !BR2_INIT_SYSTEMD
  	default BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_DEVTMPFS
  
  config BR2_ROOTFS_DEVICE_CREATION_STATIC
  	bool "Static using device table"
  
  config BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_DEVTMPFS
  	bool "Dynamic using devtmpfs only"
  
  config BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV
  	bool "Dynamic using devtmpfs + mdev"
  	select BR2_PACKAGE_BUSYBOX
  
  config BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV
  	bool "Dynamic using devtmpfs + eudev"
  	depends on BR2_USE_WCHAR
  	depends on !BR2_STATIC_LIBS
  	depends on BR2_USE_MMU # eudev
  	select BR2_PACKAGE_EUDEV
  
  comment "eudev needs a toolchain w/ wchar, dynamic library"
  	depends on BR2_USE_MMU
  	depends on !BR2_USE_WCHAR || BR2_STATIC_LIBS
  
  endchoice
  
  comment "/dev management using udev (from systemd)"
  	depends on BR2_INIT_SYSTEMD
  
  config BR2_ROOTFS_DEVICE_TABLE
  	string "Path to the permission tables"
  	default "system/device_table.txt"
  	help
  	  Specify a space-separated list of permission table locations,
  	  that will be passed to the makedevs utility to assign
  	  correct owners and permissions on various files in the
  	  target filesystem.
  
  	  See package/makedevs/README for details on the usage and
  	  syntax of these files.
  
  config BR2_ROOTFS_STATIC_DEVICE_TABLE
  	string "Path to the device tables"
  	default "system/device_table_dev.txt"
  	depends on BR2_ROOTFS_DEVICE_CREATION_STATIC
  	help
  	  Specify a space-separated list of device table locations,
  	  that will be passed to the makedevs utility to create all
  	  the special device files under /dev.
  
  	  See package/makedevs/README for details on the usage and
  	  syntax of these files.
  
  config BR2_ROOTFS_DEVICE_TABLE_SUPPORTS_EXTENDED_ATTRIBUTES
  	bool "support extended attributes in device tables"
  	help
  	  Support extended attributes handling in device tables
  
  if BR2_ROOTFS_SKELETON_DEFAULT
  
  config BR2_ROOTFS_MERGED_USR
  	bool "Use symlinks to /usr for /bin, /sbin and /lib"
  	help
  	  If you say 'n' here, then /bin, /sbin and /lib and their
  	  counterparts in /usr will be separate directories. This
  	  is the historical UNIX way. In this case, /usr can be a
  	  filesystem on a partition separate from / .
  
  	  If you say 'y' here, then /bin, /sbin and /lib will be symlinks
  	  to their counterparts in /usr. In this case, /usr can not be a
  	  separate filesystem.
  
  config BR2_TARGET_ENABLE_ROOT_LOGIN
  	bool "Enable root login with password"
  	default y
  	help
  	  Allow root to log in with a password.
  
  	  If not enabled, root will not be able to log in with a password.
  	  However, if you have an ssh server and you add an ssh key, you
  	  can still allow root to log in. Alternatively, you can use sudo
  	  to become root.
  
  config BR2_TARGET_GENERIC_ROOT_PASSWD
  	string "Root password"
  	default ""
  	depends on BR2_TARGET_ENABLE_ROOT_LOGIN
  	help
  	  Set the initial root password.
  
  	  If set to empty (the default), then no root password will be set,
  	  and root will need no password to log in.
  
  	  If the password starts with any of $1$, $5$ or $6$, it is considered
  	  to be already crypt-encoded with respectively md5, sha256 or sha512.
  	  Any other value is taken to be a clear-text value, and is crypt-encoded
  	  as per the "Passwords encoding" scheme, above.
  
  	  Note: "$" signs in the hashed password must be doubled. For example,
  	  if the hashed password is "$1$longsalt$v35DIIeMo4yUfI23yditq0",
  	  then you must enter it as "$$1$$longsalt$$v35DIIeMo4yUfI23yditq0"
  	  (this is necessary otherwise make would attempt to interpret the $
  	  as a variable expansion).
  
  	  WARNING! WARNING!
  	  The password appears as-is in the .config file, and may appear
  	  in the build log! Avoid using a valuable password if either the
  	  .config file or the build log may be distributed, or at the
  	  very least use a strong cryptographic hash for your password!
  
  choice
  	bool "/bin/sh"
  	default BR2_SYSTEM_BIN_SH_DASH if !BR2_PACKAGE_BUSYBOX
  	help
  	  Select which shell will provide /bin/sh.
  
  # busybox has shells that work on noMMU
  config BR2_SYSTEM_BIN_SH_BUSYBOX
  	bool "busybox' default shell"
  	depends on BR2_PACKAGE_BUSYBOX
  
  config BR2_SYSTEM_BIN_SH_BASH
  	bool "bash"
  	depends on BR2_USE_MMU # bash
  	depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
  	select BR2_PACKAGE_BASH
  
  config BR2_SYSTEM_BIN_SH_DASH
  	bool "dash"
  	depends on BR2_USE_MMU # dash
  	depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
  	select BR2_PACKAGE_DASH
  
  config BR2_SYSTEM_BIN_SH_ZSH
  	bool "zsh"
  	depends on BR2_USE_MMU # zsh
  	depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
  	select BR2_PACKAGE_ZSH
  
  comment "bash, dash, zsh need BR2_PACKAGE_BUSYBOX_SHOW_OTHERS"
  	depends on !BR2_PACKAGE_BUSYBOX_SHOW_OTHERS && BR2_PACKAGE_BUSYBOX
  
  config BR2_SYSTEM_BIN_SH_NONE
  	bool "none"
  
  endchoice # /bin/sh
  
  config BR2_SYSTEM_BIN_SH
  	string
  	default "busybox" if BR2_SYSTEM_BIN_SH_BUSYBOX
  	default "bash"    if BR2_SYSTEM_BIN_SH_BASH
  	default "dash"    if BR2_SYSTEM_BIN_SH_DASH
  	default "zsh"     if BR2_SYSTEM_BIN_SH_ZSH
  
  menuconfig BR2_TARGET_GENERIC_GETTY
  	bool "Run a getty (login prompt) after boot"
  	default y
  
  if BR2_TARGET_GENERIC_GETTY
  config BR2_TARGET_GENERIC_GETTY_PORT
  	string "TTY port"
  	default "console"
  	help
  	  Specify a port to run a getty on.
  
  choice
  	prompt "Baudrate"
  	default BR2_TARGET_GENERIC_GETTY_BAUDRATE_KEEP
  	help
  	  Select a baudrate to use.
  
  config BR2_TARGET_GENERIC_GETTY_BAUDRATE_KEEP
  	bool "keep kernel default"
  config BR2_TARGET_GENERIC_GETTY_BAUDRATE_9600
  	bool "9600"
  config BR2_TARGET_GENERIC_GETTY_BAUDRATE_19200
  	bool "19200"
  config BR2_TARGET_GENERIC_GETTY_BAUDRATE_38400
  	bool "38400"
  config BR2_TARGET_GENERIC_GETTY_BAUDRATE_57600
  	bool "57600"
  config BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200
  	bool "115200"
  endchoice
  
  config BR2_TARGET_GENERIC_GETTY_BAUDRATE
  	string
  	default "0"		if BR2_TARGET_GENERIC_GETTY_BAUDRATE_KEEP
  	default "9600"		if BR2_TARGET_GENERIC_GETTY_BAUDRATE_9600
  	default "19200"		if BR2_TARGET_GENERIC_GETTY_BAUDRATE_19200
  	default "38400"		if BR2_TARGET_GENERIC_GETTY_BAUDRATE_38400
  	default "57600"		if BR2_TARGET_GENERIC_GETTY_BAUDRATE_57600
  	default "115200"	if BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200
  
  config BR2_TARGET_GENERIC_GETTY_TERM
  	string "TERM environment variable"
  	default "vt100"
  	help
  	  Specify a TERM type.
  
  config BR2_TARGET_GENERIC_GETTY_OPTIONS
  	string "other options to pass to getty"
  	default ""
  	help
  	  Any other flags you want to pass to getty,
  	  Refer to getty --help for details.
  endif
  
  config BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW
  	bool "remount root filesystem read-write during boot"
  	default y
  	help
  	  The root filesystem is typically mounted read-only at boot.
  	  By default, buildroot remounts it in read-write mode early during the
  	  boot process.
  	  Say no here if you would rather like your root filesystem to remain
  	  read-only.
  	  If unsure, say Y.
  
  config BR2_SYSTEM_DHCP
  	string "Network interface to configure through DHCP"
  	default ""
  	depends on !BR2_PACKAGE_SYSTEMD_NETWORKD && (BR2_PACKAGE_BUSYBOX || BR2_PACKAGE_IFUPDOWN)
  	help
  	  Enter here the name of the network interface (E.G. eth0) to
  	  automatically configure through DHCP at bootup.
  
  	  If left empty, no automatic DHCP requests will take place.
  
  	  For more complicated network setups use an overlay to overwrite
  	  /etc/network/interfaces or add a networkd configuration file.
  
  comment "automatic network configuration via DHCP is not compatible with networkd"
  	depends on BR2_PACKAGE_SYSTEMD_NETWORKD
  
  comment "automatic network configuration via DHCP needs ifupdown or busybox"
  	depends on !(BR2_PACKAGE_BUSYBOX || BR2_PACKAGE_IFUPDOWN)
  
  endif # BR2_ROOTFS_SKELETON_DEFAULT
  
  config BR2_ENABLE_LOCALE_PURGE
  	bool "Purge unwanted locales"
  	default y
  	help
  	  Explicitly specify what locales to install on target. If N
  	  then all locales supported by packages are installed.
  
  config BR2_ENABLE_LOCALE_WHITELIST
  	string "Locales to keep"
  	default "C en_US"
  	depends on BR2_ENABLE_LOCALE_PURGE
  	help
  	  Whitespace seperated list of locales to allow on target.
  	  Locales not listed here will be removed from the target.
  	  See 'locale -a' on your host for a list of locales available
  	  on your build host, or have a look in /usr/share/locale in
  	  the target file system for available locales.
  
  	  Notice that listing a locale here doesn't guarantee that it
  	  will be available on the target - That purely depends on the
  	  support for that locale in the selected packages.
  
  config BR2_GENERATE_LOCALE
  	string "Generate locale data"
  	default ""
  	depends on \
  		(BR2_TOOLCHAIN_BUILDROOT_UCLIBC && BR2_ENABLE_LOCALE) || \
  		BR2_TOOLCHAIN_USES_GLIBC
  	help
  	  Generate support for a list of locales. Locales can be
  	  specified with or without encoding, when no encoding is
  	  specified, UTF-8 is assumed. Examples of locales: en_US,
  	  fr_FR.UTF-8.
  
  config BR2_TARGET_TZ_INFO
  	bool "Install timezone info"
  	select BR2_PACKAGE_TZDATA if BR2_TOOLCHAIN_USES_GLIBC
  	select BR2_PACKAGE_TZDATA if BR2_TOOLCHAIN_USES_MUSL
  	select BR2_PACKAGE_TZ if BR2_TOOLCHAIN_USES_UCLIBC
  	help
  	  Say 'y' here to install timezone info.
  
  if BR2_TARGET_TZ_INFO
  
  config BR2_TARGET_TZ_ZONELIST
  	string "timezone list"
  	default "default"
  	help
  	  Space-separated list of time zones to compile.
  
  	  The value "default" includes all commonly used time zones. Note
  	  that this set consumes around 5.5M for glibc and 2.1M for uClibc.
  
  	  The full list is the list of files in the time zone database source,
  	  not including the build and .tab files.
  
  config BR2_TARGET_LOCALTIME
  	string "default local time"
  	default "Etc/UTC"
  	help
  	  The time zone to install as the default local time, expressed as a
  	  tzdata location, such as:
  	    GMT
  	    Europe/Paris
  	    America/New_York
  	    Pacific/Wallis
  	    ...
  
  	  If empty, no local time will be set, and the dates will be
  	  expressed in UTC.
  
  endif # BR2_TARGET_TZ_INFO
  
  config BR2_ROOTFS_USERS_TABLES
  	string "Path to the users tables"
  	help
  	  Specify a space-separated list of users table locations,
  	  that will be passed to the mkusers utility to create
  	  users on the system, with home directory, password, etc.
  
  	  See manual for details on the usage and syntax of these files.
  
  config BR2_ROOTFS_OVERLAY
  	string "Root filesystem overlay directories"
  	default ""
  	help
  	  Specify a list of directories that are copied over the target
  	  root filesystem after the build has finished and before it is
  	  packed into the selected filesystem images.
  
  	  They are copied as-is into the rootfs, excluding files ending with
  	  ~ and .git, .svn and .hg directories.
  
  config BR2_ROOTFS_POST_BUILD_SCRIPT
  	string "Custom scripts to run before creating filesystem images"
  	default ""
  	help
  	  Specify a space-separated list of scripts to be run after the build
  	  has finished and before Buildroot starts packing the files into
  	  selected filesystem images.
  
  	  This gives users the opportunity to do board-specific cleanups,
  	  add-ons and the like, so the generated files can be used directly
  	  without further processing.
  
  	  These scripts are called with the target directory name as first
  	  argument. Make sure the exit code of those scripts are 0, otherwise
  	  make will stop after calling them.
  
  config BR2_ROOTFS_POST_FAKEROOT_SCRIPT
  	string "Custom scripts to run inside the fakeroot environment"
  	default ""
  	help
  	  Specify a space-separated list of scripts to be run at the end
  	  of the fakeroot script right before the image(s) are actually
  	  generated.
  
  	  This gives users the opportunity to do customisations of the
  	  content of the rootfs, which would otherwise require root
  	  rigths.
  
  	  These scripts are called with the target directory name as
  	  first argument. The build will fail on the first scripts that
  	  exits with a non-zero exit code.
  
  	  Note that Buildroot already provides mechanisms to customise
  	  the content of the rootfs:
  
  	    - BR2_ROOTFS_STATIC_DEVICE_TABLE
  	        to create arbitrary entries statically in /dev
  
  	    - BR2_ROOTFS_DEVICE_TABLE
  	        to set arbitrary permissions as well as extended attributes
  	        (such as capabilities) on files and directories,
  
  	    - BR2_ROOTFS_USERS_TABLES:
  	        to create arbitrary users and their home directories
  
  	  It is highly recommended to use those mechanisms if possible,
  	  rather than using custom fakeroot scripts.
  
  config BR2_ROOTFS_POST_IMAGE_SCRIPT
  	string "Custom scripts to run after creating filesystem images"
  	default ""
  	help
  	  Specify a space-separated list of scripts to be run after
  	  the build has finished and after Buildroot has packed the
  	  files into selected filesystem images.
  
  	  This can for example be used to call a tool building a
  	  firmware image from different images generated by Buildroot,
  	  or automatically extract the tarball root filesystem image
  	  into some location exported by NFS, or any other custom
  	  action.
  
  	  These scripts are called with the images directory name as
  	  first argument. The script is executed from the main Buildroot
  	  source directory as the current directory.
  
  config BR2_ROOTFS_POST_SCRIPT_ARGS
  	string "Extra arguments passed to custom scripts"
  	depends on BR2_ROOTFS_POST_BUILD_SCRIPT != "" \
  		|| BR2_ROOTFS_POST_FAKEROOT_SCRIPT != "" \
  		|| BR2_ROOTFS_POST_IMAGE_SCRIPT != ""
  	help
  	  Pass these additional arguments to each post-build or post-image
  	  scripts.
  
  	  Note that all the post-build and post-image scripts will be passed
  	  the same set of arguments, you can not pass different arguments to
  	  each script.
  
  	  Note also, as stated in their respective help text, that the first
  	  argument to each post-build or post-image script is the target
  	  directory / images directory. The arguments in this option will be
  	  passed *after* those.
  
  endmenu