menu "System configuration" 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. 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 config BR2_INIT_SYSV bool "systemV" select BR2_PACKAGE_BUSYBOX_SHOW_OTHERS # sysvinit select BR2_PACKAGE_SYSVINIT 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_PACKAGE_SYSTEMD comment 'systemd needs an (e)glibc toolchain, headers >= 3.10' depends on !(BR2_TOOLCHAIN_USES_GLIBC \ && BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10) config BR2_INIT_NONE bool "None" 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 mdev" select BR2_PACKAGE_BUSYBOX config BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV bool "Dynamic using 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. 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" default "system/skeleton" help Path to custom target skeleton. endif if BR2_ROOTFS_SKELETON_DEFAULT config BR2_TARGET_GENERIC_ROOT_PASSWD string "Root password" default "" help Set the initial root password (in clear). It will be md5-encrypted. If set to empty (the default), then no root password will be set, and root will need no password to log in. WARNING! WARNING! Although pretty strong, MD5 is now an old hash function, and suffers from some weaknesses, which makes it susceptible to attacks. It is showing its age, so this root password should not be trusted to properly secure any product that can be shipped to the wide, hostile world. WARNING! WARNING! The password appears in clear 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! 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 "/bin/busybox" if BR2_SYSTEM_BIN_SH_BUSYBOX default "/bin/bash" if BR2_SYSTEM_BIN_SH_BASH default "/bin/dash" if BR2_SYSTEM_BIN_SH_DASH default "/bin/zsh" if BR2_SYSTEM_BIN_SH_ZSH config BR2_TARGET_GENERIC_GETTY bool "Run a getty (login prompt) after boot" default y if BR2_TARGET_GENERIC_GETTY menu "getty options" 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. endmenu 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. endif # BR2_ROOTFS_SKELETON_DEFAULT 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) config BR2_TARGET_TZ_INFO bool "Install timezone info" # No timezone for musl; only for uClibc or (e)glibc. depends on BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_UCLIBC select BR2_PACKAGE_TZDATA if BR2_TOOLCHAIN_USES_GLIBC 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 (e)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_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 post-{build,image} arguments" depends on BR2_ROOTFS_POST_BUILD_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