menu "System configuration" config BR2_TARGET_GENERIC_HOSTNAME string "System hostname" default "buildroot" help Select system hostname to be stored in /etc/hostname. config BR2_TARGET_GENERIC_ISSUE string "System banner" default "Welcome to Buildroot" help Select system banner (/etc/issue) to be displayed at login. 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_DES bool "des" help Use standard 56-bit DES-based crypt(3) to encode passwords. Old, wildly available, but also the weakest, very susceptible to brute-force attacks. 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 "des" if BR2_TARGET_GENERIC_PASSWD_DES 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 "/dev management" default BR2_ROOTFS_DEVICE_CREATION_STATIC 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_UDEV bool "Dynamic using udev" depends on BR2_LARGEFILE # udev depends on BR2_USE_WCHAR # udev select BR2_PACKAGE_UDEV comment "udev requires a toolchain with LARGEFILE + WCHAR support" depends on !(BR2_LARGEFILE && BR2_USE_WCHAR) endchoice 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_SYSVINIT config BR2_INIT_SYSTEMD bool "systemd" depends on BR2_LARGEFILE depends on BR2_USE_WCHAR depends on BR2_INET_IPV6 depends on BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_UDEV depends on BR2_TOOLCHAIN_HAS_THREADS depends on BR2_USE_MMU select BR2_PACKAGE_DBUS select BR2_PACKAGE_SYSTEMD comment 'systemd requires largefile, wchar, IPv6, threads and udev support' depends on !(BR2_LARGEFILE && BR2_USE_WCHAR && \ BR2_INET_IPV6 && BR2_TOOLCHAIN_HAS_THREADS && \ BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_UDEV) config BR2_INIT_NONE bool "None" endchoice 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 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! config BR2_TARGET_GENERIC_GETTY_PORT string "Port to run a getty (login prompt) on" default "ttyS0" help Specify a port to run a getty (login prompt) on. Set to the empty string to not run a getty. choice prompt "Baudrate to use" default BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200 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 "Value to assign the TERM environment variable" default "vt100" help Specify a TERM type. 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_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 oportunity 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 aditional 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