#!/bin/sh ######################################################################## # rpi23-gen-image.sh 2015-2017 # # Advanced Debian "stretch" and "buster" bootstrap script for RPi2/3 # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # Copyright (C) 2015 Jan Wagner # # Big thanks for patches and enhancements by 20+ github contributors! ######################################################################## # Are we running as root? if [ "$(id -u)" -ne "0" ] ; then echo "error: this script must be executed with root privileges!" exit 1 fi # Check if ./functions.sh script exists if [ ! -r "./functions.sh" ] ; then echo "error: './functions.sh' required script not found!" exit 1 fi # Load utility functions . ./functions.sh # Load parameters from configuration template file if [ -n "$CONFIG_TEMPLATE" ] ; then use_template fi # Introduce settings set -e echo -n -e "\n#\n# RPi2/3 Bootstrap Settings\n#\n" set -x # Raspberry Pi model configuration RPI_MODEL=${RPI_MODEL:=2} # Debian release RELEASE=${RELEASE:=buster} #Kernel Branch KERNEL_BRANCH=${KERNEL_BRANCH:=""} # URLs KERNEL_URL=${KERNEL_URL:=https://github.com/raspberrypi/linux} FIRMWARE_URL=${FIRMWARE_URL:=https://github.com/raspberrypi/firmware/raw/master/boot} WLAN_FIRMWARE_URL=${WLAN_FIRMWARE_URL:=https://github.com/RPi-Distro/firmware-nonfree/raw/master/brcm} COLLABORA_URL=${COLLABORA_URL:=https://repositories.collabora.co.uk/debian} FBTURBO_URL=${FBTURBO_URL:=https://github.com/ssvb/xf86-video-fbturbo.git} UBOOT_URL=${UBOOT_URL:=https://git.denx.de/u-boot.git} VIDEOCORE_URL=${VIDEOCORE_URL:=https://github.com/raspberrypi/userland} BLUETOOTH_URL=${BLUETOOTH_URL:=https://github.com/RPi-Distro/pi-bluetooth.git} # Build directories BASEDIR=${BASEDIR:=$(pwd)/images/${RELEASE}} BUILDDIR="${BASEDIR}/build" # Prepare date string for default image file name DATE="$(date +%Y-%m-%d)" if [ -z "$KERNEL_BRANCH" ] ; then IMAGE_NAME=${IMAGE_NAME:=${BASEDIR}/${DATE}-${KERNEL_ARCH}-CURRENT-rpi${RPI_MODEL}-${RELEASE}-${RELEASE_ARCH}} else IMAGE_NAME=${IMAGE_NAME:=${BASEDIR}/${DATE}-${KERNEL_ARCH}-${KERNEL_BRANCH}-rpi${RPI_MODEL}-${RELEASE}-${RELEASE_ARCH}} fi # Chroot directories R="${BUILDDIR}/chroot" ETC_DIR="${R}/etc" LIB_DIR="${R}/lib" BOOT_DIR="${R}/boot/firmware" KERNEL_DIR="${R}/usr/src/linux" WLAN_FIRMWARE_DIR="${LIB_DIR}/firmware/brcm" # Firmware directory: Blank if download from github RPI_FIRMWARE_DIR=${RPI_FIRMWARE_DIR:=""} # General settings SET_ARCH=${SET_ARCH:=32} HOSTNAME=${HOSTNAME:=rpi${RPI_MODEL}-${RELEASE}} PASSWORD=${PASSWORD:=raspberry} USER_PASSWORD=${USER_PASSWORD:=raspberry} DEFLOCAL=${DEFLOCAL:="en_US.UTF-8"} TIMEZONE=${TIMEZONE:="Europe/Berlin"} EXPANDROOT=${EXPANDROOT:=true} # Keyboard settings XKB_MODEL=${XKB_MODEL:=""} XKB_LAYOUT=${XKB_LAYOUT:=""} XKB_VARIANT=${XKB_VARIANT:=""} XKB_OPTIONS=${XKB_OPTIONS:=""} # Network settings (DHCP) ENABLE_DHCP=${ENABLE_DHCP:=true} # Network settings (static) NET_ADDRESS=${NET_ADDRESS:=""} NET_GATEWAY=${NET_GATEWAY:=""} NET_DNS_1=${NET_DNS_1:=""} NET_DNS_2=${NET_DNS_2:=""} NET_DNS_DOMAINS=${NET_DNS_DOMAINS:=""} NET_NTP_1=${NET_NTP_1:=""} NET_NTP_2=${NET_NTP_2:=""} # APT settings APT_PROXY=${APT_PROXY:=""} APT_SERVER=${APT_SERVER:="ftp.debian.org"} # Feature settings ENABLE_CONSOLE=${ENABLE_CONSOLE:=true} ENABLE_I2C=${ENABLE_I2C:=false} ENABLE_SPI=${ENABLE_SPI:=false} ENABLE_IPV6=${ENABLE_IPV6:=true} ENABLE_SSHD=${ENABLE_SSHD:=true} ENABLE_NONFREE=${ENABLE_NONFREE:=false} ENABLE_WIRELESS=${ENABLE_WIRELESS:=false} ENABLE_SOUND=${ENABLE_SOUND:=true} ENABLE_DBUS=${ENABLE_DBUS:=true} ENABLE_HWRANDOM=${ENABLE_HWRANDOM:=true} ENABLE_MINGPU=${ENABLE_MINGPU:=false} ENABLE_XORG=${ENABLE_XORG:=false} ENABLE_WM=${ENABLE_WM:=""} ENABLE_RSYSLOG=${ENABLE_RSYSLOG:=true} ENABLE_USER=${ENABLE_USER:=true} USER_NAME=${USER_NAME:="pi"} ENABLE_ROOT=${ENABLE_ROOT:=false} ENABLE_QEMU=${ENABLE_QEMU:=false} ENABLE_SYSVINIT=${ENABLE_SYSVINIT:=false} # SSH settings SSH_ENABLE_ROOT=${SSH_ENABLE_ROOT:=false} SSH_DISABLE_PASSWORD_AUTH=${SSH_DISABLE_PASSWORD_AUTH:=false} SSH_LIMIT_USERS=${SSH_LIMIT_USERS:=false} SSH_ROOT_PUB_KEY=${SSH_ROOT_PUB_KEY:=""} SSH_USER_PUB_KEY=${SSH_USER_PUB_KEY:=""} # Advanced settings ENABLE_MINBASE=${ENABLE_MINBASE:=false} ENABLE_REDUCE=${ENABLE_REDUCE:=false} ENABLE_UBOOT=${ENABLE_UBOOT:=false} UBOOTSRC_DIR=${UBOOTSRC_DIR:=""} ENABLE_FBTURBO=${ENABLE_FBTURBO:=false} ENABLE_VIDEOCORE=${ENABLE_VIDEOCORE:=true} VIDEOCORESRC_DIR=${VIDEOCORESRC_DIR:=""} FBTURBOSRC_DIR=${FBTURBOSRC_DIR:=""} ENABLE_HARDNET=${ENABLE_HARDNET:=false} ENABLE_IPTABLES=${ENABLE_IPTABLES:=false} ENABLE_SPLITFS=${ENABLE_SPLITFS:=false} ENABLE_INITRAMFS=${ENABLE_INITRAMFS:=false} ENABLE_IFNAMES=${ENABLE_IFNAMES:=true} DISABLE_UNDERVOLT_WARNINGS=${DISABLE_UNDERVOLT_WARNINGS:=} # Kernel compilation settings BUILD_KERNEL=${BUILD_KERNEL:=true} KERNEL_REDUCE=${KERNEL_REDUCE:=false} KERNEL_THREADS=${KERNEL_THREADS:=1} KERNEL_HEADERS=${KERNEL_HEADERS:=true} KERNEL_MENUCONFIG=${KERNEL_MENUCONFIG:=false} KERNEL_REMOVESRC=${KERNEL_REMOVESRC:=true} KERNEL_OLDDEFCONFIG=${KERNEL_OLDDEFCONFIG:=false} KERNEL_CCACHE=${KERNEL_CCACHE:=false} # Kernel compilation from source directory settings KERNELSRC_DIR=${KERNELSRC_DIR:=""} KERNELSRC_CLEAN=${KERNELSRC_CLEAN:=false} KERNELSRC_CONFIG=${KERNELSRC_CONFIG:=true} KERNELSRC_PREBUILT=${KERNELSRC_PREBUILT:=false} # Reduce disk usage settings REDUCE_APT=${REDUCE_APT:=true} REDUCE_DOC=${REDUCE_DOC:=true} REDUCE_MAN=${REDUCE_MAN:=true} REDUCE_VIM=${REDUCE_VIM:=false} REDUCE_BASH=${REDUCE_BASH:=false} REDUCE_HWDB=${REDUCE_HWDB:=true} REDUCE_SSHD=${REDUCE_SSHD:=true} REDUCE_LOCALE=${REDUCE_LOCALE:=true} # Encrypted filesystem settings ENABLE_CRYPTFS=${ENABLE_CRYPTFS:=false} CRYPTFS_PASSWORD=${CRYPTFS_PASSWORD:=""} CRYPTFS_MAPPING=${CRYPTFS_MAPPING:="secure"} CRYPTFS_CIPHER=${CRYPTFS_CIPHER:="aes-xts-plain64:sha512"} CRYPTFS_XTSKEYSIZE=${CRYPTFS_XTSKEYSIZE:=512} # Chroot scripts directory CHROOT_SCRIPTS=${CHROOT_SCRIPTS:=""} # Packages required in the chroot build environment APT_INCLUDES=${APT_INCLUDES:=""} APT_INCLUDES="${APT_INCLUDES},apt-transport-https,apt-utils,ca-certificates,debian-archive-keyring,dialog,sudo,systemd,sysvinit-utils,locales,keyboard-configuration,console-setup" #Packages to exclude from chroot build environment APT_EXCLUDES=${APT_EXCLUDES:=""} # Packages required for bootstrapping REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git bc psmisc dbus sudo" MISSING_PACKAGES="" # Packages installed for c/c++ build environment in chroot (keep empty) COMPILER_PACKAGES="" set +x #If init and systemd-sysv are wanted e.g. halt/reboot/shutdown scripts if [ "$ENABLE_SYSVINIT" = false ] ; then APT_EXCLUDES="--exclude=${APT_EXCLUDES},init,systemd-sysv" fi #Check if apt-cacher-ng has its default port open on and set APT_PROXY if [ -n "$(lsof -i :3142)" ] ; then HTTP_PROXY=http://127.0.0.1:3142/ fi #make script easier and more stable to use with convenient setup switch. Just setup SET_ARCH and RPI_MODEL and your good to go! if [ -n "$SET_ARCH" ] ; then echo "Setting Architecture specific settings" ################################## # 64 bit config ################################## if [ "$SET_ARCH" = 64 ] ; then echo "64 bit mode selected - Setting up enviroment" # 64 bit depended settings QEMU_BINARY=${QEMU_BINARY:=/usr/bin/qemu-aarch64-static} KERNEL_ARCH=${KERNEL_ARCH:=arm64} KERNEL_BIN_IMAGE=${KERNEL_BIN_IMAGE:="Image"} if [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; then REQUIRED_PACKAGES="${REQUIRED_PACKAGES} crossbuild-essential-arm64" KERNEL_DEFCONFIG=${KERNEL_DEFCONFIG:=bcmrpi3_defconfig} RELEASE_ARCH=${RELEASE_ARCH:=arm64} KERNEL_IMAGE=${KERNEL_IMAGE:=kernel8.img} CROSS_COMPILE=${CROSS_COMPILE:=aarch64-linux-gnu-} else echo "error: Only Raspberry PI 3 and 3B+ support 64bit" exit 1 fi fi ################################## # 32 bit config ################################## if [ "$SET_ARCH" = 32 ] ; then echo "32 bit mode selected - Setting up enviroment" #General 32bit configuration QEMU_BINARY=${QEMU_BINARY:=/usr/bin/qemu-arm-static} KERNEL_ARCH=${KERNEL_ARCH:=arm} KERNEL_BIN_IMAGE=${KERNEL_BIN_IMAGE:="zImage"} #Raspberry setting grouped by board compability if [ "$RPI_MODEL" = 0 ] || [ "$RPI_MODEL" = 1 ] || [ "$RPI_MODEL" = 1P ] ; then echo "Setting settings for bcm2835 Raspberry PI boards" REQUIRED_PACKAGES="${REQUIRED_PACKAGES} crossbuild-essential-armel" KERNEL_DEFCONFIG=${KERNEL_DEFCONFIG:=bcmrpi_defconfig} RELEASE_ARCH=${RELEASE_ARCH:=armel} KERNEL_IMAGE=${KERNEL_IMAGE:=kernel.img} CROSS_COMPILE=${CROSS_COMPILE:=arm-linux-gnueabi-} fi if [ "$RPI_MODEL" = 2 ] || [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; then echo "Setting settings for bcm2837 Raspberry PI boards" REQUIRED_PACKAGES="${REQUIRED_PACKAGES} crossbuild-essential-armhf" KERNEL_DEFCONFIG=${KERNEL_DEFCONFIG:=bcm2709_defconfig} RELEASE_ARCH=${RELEASE_ARCH:=armhf} KERNEL_IMAGE=${KERNEL_IMAGE:=kernel7.img} CROSS_COMPILE=${CROSS_COMPILE:=arm-linux-gnueabihf-} fi fi #SET_ARCH not set else echo "error: Please set '32' or '64' as value for SET_ARCH" exit 1 fi #Device specific configuration and uboot-config echo "Select DTB-File" case "$RPI_MODEL" in 0) DTB_FILE=${DTB_FILE:=bcm2708-rpi-0-w.dtb} UBOOT_CONFIG=${UBOOT_CONFIG:=rpi_defconfig} ;; 1) DTB_FILE=${DTB_FILE:=bcm2708-rpi-b.dtb} UBOOT_CONFIG=${UBOOT_CONFIG:=rpi_defconfig} ;; 1P) DTB_FILE=${DTB_FILE:=bcm2708-rpi-b-plus.dtb} UBOOT_CONFIG=${UBOOT_CONFIG:=rpi_defconfig} ;; 2) DTB_FILE=${DTB_FILE:=bcm2709-rpi-2-b.dtb} UBOOT_CONFIG=${UBOOT_CONFIG:=rpi_2_defconfig} ;; 3) DTB_FILE=${DTB_FILE:=bcm2710-rpi-3-b.dtb} UBOOT_CONFIG=${UBOOT_CONFIG:=rpi_3_defconfig} ;; 3P) DTB_FILE=${DTB_FILE:=bcm2710-rpi-3-b.dtb} UBOOT_CONFIG=${UBOOT_CONFIG:=rpi_3_defconfig} ;; *) echo "error: Raspberry Pi model $RPI_MODEL is not supported!" exit 1 ;; esac echo "$DTB_FILE selected" # Check if the internal wireless interface is supported by the RPi model if [ "$ENABLE_WIRELESS" = true ] ; then if [ "$RPI_MODEL" = 1 ] || [ "$RPI_MODEL" = 1P ] || [ "$RPI_MODEL" = 2 ] ; then echo "error: The selected Raspberry Pi model has no internal wireless interface" exit 1 else echo "Raspberry Pi $RPI_MODEL has WIFI support" fi fi # Check if DISABLE_UNDERVOLT_WARNINGS parameter value is supported if [ -n "$DISABLE_UNDERVOLT_WARNINGS" ] ; then if [ "$DISABLE_UNDERVOLT_WARNINGS" != 1 ] && [ "$DISABLE_UNDERVOLT_WARNINGS" != 2 ] ; then echo "error: DISABLE_UNDERVOLT_WARNINGS=${DISABLE_UNDERVOLT_WARNINGS} is not supported" exit 1 fi fi if [ "$ENABLE_VIDEOCORE" = true ] ; then REQUIRED_PACKAGES="${REQUIRED_PACKAGES} cmake" fi # Add libncurses5 to enable kernel menuconfig if [ "$KERNEL_MENUCONFIG" = true ] ; then REQUIRED_PACKAGES="${REQUIRED_PACKAGES} libncurses-dev" fi # Add ccache compiler cache for (faster) kernel cross (re)compilation if [ "$KERNEL_CCACHE" = true ] ; then REQUIRED_PACKAGES="${REQUIRED_PACKAGES} ccache" fi # Add cryptsetup package to enable filesystem encryption if [ "$ENABLE_CRYPTFS" = true ] && [ "$BUILD_KERNEL" = true ] ; then REQUIRED_PACKAGES="${REQUIRED_PACKAGES} cryptsetup" APT_INCLUDES="${APT_INCLUDES},cryptsetup,busybox,console-setup" if [ -z "$CRYPTFS_PASSWORD" ] ; then echo "error: no password defined (CRYPTFS_PASSWORD)!" exit 1 fi ENABLE_INITRAMFS=true fi # Add initramfs generation tools if [ "$ENABLE_INITRAMFS" = true ] && [ "$BUILD_KERNEL" = true ] ; then APT_INCLUDES="${APT_INCLUDES},initramfs-tools" fi # Add device-tree-compiler required for building the U-Boot bootloader if [ "$ENABLE_UBOOT" = true ] ; then APT_INCLUDES="${APT_INCLUDES},device-tree-compiler,bison,flex,bc" fi # Check if root SSH (v2) public key file exists if [ -n "$SSH_ROOT_PUB_KEY" ] ; then if [ ! -f "$SSH_ROOT_PUB_KEY" ] ; then echo "error: '$SSH_ROOT_PUB_KEY' specified SSH public key file not found (SSH_ROOT_PUB_KEY)!" exit 1 fi fi # Check if $USER_NAME SSH (v2) public key file exists if [ -n "$SSH_USER_PUB_KEY" ] ; then if [ ! -f "$SSH_USER_PUB_KEY" ] ; then echo "error: '$SSH_USER_PUB_KEY' specified SSH public key file not found (SSH_USER_PUB_KEY)!" exit 1 fi fi # Check if all required packages are installed on the build system for package in $REQUIRED_PACKAGES ; do if [ "$(dpkg-query -W -f='${Status}' $package)" != "install ok installed" ] ; then MISSING_PACKAGES="${MISSING_PACKAGES} $package" fi done # If there are missing packages ask confirmation for install, or exit if [ -n "$MISSING_PACKAGES" ] ; then echo "the following packages needed by this script are not installed:" echo "$MISSING_PACKAGES" printf "\ndo you want to install the missing packages right now? [y/n] " read -r confirm [ "$confirm" != "y" ] && exit 1 # Make sure all missing required packages are installed apt-get -qq -y install "${MISSING_PACKAGES}" fi # Check if ./bootstrap.d directory exists if [ ! -d "./bootstrap.d/" ] ; then echo "error: './bootstrap.d' required directory not found!" exit 1 fi # Check if ./files directory exists if [ ! -d "./files/" ] ; then echo "error: './files' required directory not found!" exit 1 fi # Check if specified KERNELSRC_DIR directory exists if [ -n "$KERNELSRC_DIR" ] && [ ! -d "$KERNELSRC_DIR" ] ; then echo "error: '${KERNELSRC_DIR}' specified directory not found (KERNELSRC_DIR)!" exit 1 fi # Check if specified UBOOTSRC_DIR directory exists if [ -n "$UBOOTSRC_DIR" ] && [ ! -d "$UBOOTSRC_DIR" ] ; then echo "error: '${UBOOTSRC_DIR}' specified directory not found (UBOOTSRC_DIR)!" exit 1 fi # Check if specified VIDEOCORESRC_DIR directory exists if [ -n "$VIDEOCORESRC_DIR" ] && [ ! -d "$VIDEOCORESRC_DIR" ] ; then echo "error: '${VIDEOCORESRC_DIR}' specified directory not found (VIDEOCORESRC_DIR)!" exit 1 fi # Check if specified FBTURBOSRC_DIR directory exists if [ -n "$FBTURBOSRC_DIR" ] && [ ! -d "$FBTURBOSRC_DIR" ] ; then echo "error: '${FBTURBOSRC_DIR}' specified directory not found (FBTURBOSRC_DIR)!" exit 1 fi # Check if specified CHROOT_SCRIPTS directory exists if [ -n "$CHROOT_SCRIPTS" ] && [ ! -d "$CHROOT_SCRIPTS" ] ; then echo "error: ${CHROOT_SCRIPTS} specified directory not found (CHROOT_SCRIPTS)!" exit 1 fi # Check if specified device mapping already exists (will be used by cryptsetup) if [ -r "/dev/mapping/${CRYPTFS_MAPPING}" ] ; then echo "error: mapping /dev/mapping/${CRYPTFS_MAPPING} already exists, not proceeding" exit 1 fi # Don't clobber an old build if [ -e "$BUILDDIR" ] ; then echo "error: directory ${BUILDDIR} already exists, not proceeding" exit 1 fi # Setup chroot directory mkdir -p "${R}" # Check if build directory has enough of free disk space >512MB if [ "$(df --output=avail "${BUILDDIR}" | sed "1d")" -le "524288" ] ; then echo "error: ${BUILDDIR} not enough space left to generate the output image!" exit 1 fi set -x # Call "cleanup" function on various signals and errors trap cleanup 0 1 2 3 6 # Add required packages for the minbase installation if [ "$ENABLE_MINBASE" = true ] ; then APT_INCLUDES="${APT_INCLUDES},vim-tiny,netbase,net-tools,ifupdown" fi # Add parted package, required to get partprobe utility if [ "$EXPANDROOT" = true ] ; then APT_INCLUDES="${APT_INCLUDES},parted" fi # Add dbus package, recommended if using systemd if [ "$ENABLE_DBUS" = true ] ; then APT_INCLUDES="${APT_INCLUDES},dbus" fi # Add iptables IPv4/IPv6 package if [ "$ENABLE_IPTABLES" = true ] ; then APT_INCLUDES="${APT_INCLUDES},iptables,iptables-persistent" fi # Add openssh server package if [ "$ENABLE_SSHD" = true ] ; then APT_INCLUDES="${APT_INCLUDES},openssh-server" fi # Add alsa-utils package if [ "$ENABLE_SOUND" = true ] ; then APT_INCLUDES="${APT_INCLUDES},alsa-utils" fi # Add rng-tools package if [ "$ENABLE_HWRANDOM" = true ] ; then APT_INCLUDES="${APT_INCLUDES},rng-tools" fi # Add fbturbo video driver if [ "$ENABLE_FBTURBO" = true ] ; then # Enable xorg package dependencies ENABLE_XORG=true fi # Add user defined window manager package if [ -n "$ENABLE_WM" ] ; then APT_INCLUDES="${APT_INCLUDES},${ENABLE_WM}" # Enable xorg package dependencies ENABLE_XORG=true fi # Add xorg package if [ "$ENABLE_XORG" = true ] ; then APT_INCLUDES="${APT_INCLUDES},xorg,dbus-x11" fi # Replace selected packages with smaller clones if [ "$ENABLE_REDUCE" = true ] ; then # Add levee package instead of vim-tiny if [ "$REDUCE_VIM" = true ] ; then APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/vim-tiny/levee/")" fi # Add dropbear package instead of openssh-server if [ "$REDUCE_SSHD" = true ] ; then APT_INCLUDES="$(echo "${APT_INCLUDES}" | sed "s/openssh-server/dropbear/")" fi fi # Configure kernel sources if no KERNELSRC_DIR if [ "$BUILD_KERNEL" = true ] && [ -z "$KERNELSRC_DIR" ] ; then KERNELSRC_CONFIG=true fi # Configure reduced kernel if [ "$KERNEL_REDUCE" = true ] ; then KERNELSRC_CONFIG=false fi # Configure qemu compatible kernel if [ "$ENABLE_QEMU" = true ] ; then DTB_FILE=vexpress-v2p-ca15_a7.dtb UBOOT_CONFIG=vexpress_ca15_tc2_defconfig KERNEL_DEFCONFIG="vexpress_defconfig" if [ "$KERNEL_MENUCONFIG" = false ] ; then KERNEL_OLDDEFCONFIG=true fi fi # Execute bootstrap scripts for SCRIPT in bootstrap.d/*.sh; do head -n 3 "$SCRIPT" . "$SCRIPT" done ## Execute custom bootstrap scripts if [ -d "custom.d" ] ; then for SCRIPT in custom.d/*.sh; do . "$SCRIPT" done fi # Execute custom scripts inside the chroot if [ -n "$CHROOT_SCRIPTS" ] && [ -d "$CHROOT_SCRIPTS" ] ; then cp -r "${CHROOT_SCRIPTS}" "${R}/chroot_scripts" chroot_exec /bin/bash -x <<'EOF' for SCRIPT in /chroot_scripts/* ; do if [ -f $SCRIPT -a -x $SCRIPT ] ; then $SCRIPT fi done EOF rm -rf "${R}/chroot_scripts" fi # Remove c/c++ build environment from the chroot chroot_remove_cc # Generate required machine-id MACHINE_ID=$(dbus-uuidgen) echo -n "${MACHINE_ID}" > "${R}/var/lib/dbus/machine-id" echo -n "${MACHINE_ID}" > "${ETC_DIR}/machine-id" # APT Cleanup chroot_exec apt-get -y clean chroot_exec apt-get -y autoclean chroot_exec apt-get -y autoremove # Unmount mounted filesystems umount -l "${R}/proc" umount -l "${R}/sys" # Clean up directories rm -rf "${R}/run/*" rm -rf "${R}/tmp/*" # Clean up files rm -f "${ETC_DIR}/ssh/ssh_host_*" rm -f "${ETC_DIR}/dropbear/dropbear_*" rm -f "${ETC_DIR}/apt/sources.list.save" rm -f "${ETC_DIR}/resolvconf/resolv.conf.d/original" rm -f "${ETC_DIR}/*-" rm -f "${ETC_DIR}/apt/apt.conf.d/10proxy" rm -f "${ETC_DIR}/resolv.conf" rm -f "${R}/root/.bash_history" rm -f "${R}/var/lib/urandom/random-seed" rm -f "${R}/initrd.img" rm -f "${R}/vmlinuz" rm -f "${R}${QEMU_BINARY}" if [ "$ENABLE_QEMU" = true ] ; then # Setup QEMU directory mkdir "${BASEDIR}/qemu" # Copy kernel image to QEMU directory install_readonly "${BOOT_DIR}/${KERNEL_IMAGE}" "${BASEDIR}/qemu/${KERNEL_IMAGE}" # Copy kernel config to QEMU directory install_readonly "${R}/boot/config-${KERNEL_VERSION}" "${BASEDIR}/qemu/config-${KERNEL_VERSION}" # Copy kernel dtbs to QEMU directory for dtb in "${BOOT_DIR}/"*.dtb ; do if [ -f "${dtb}" ] ; then install_readonly "${dtb}" "${BASEDIR}/qemu/" fi done # Copy kernel overlays to QEMU directory if [ -d "${BOOT_DIR}/overlays" ] ; then # Setup overlays dtbs directory mkdir "${BASEDIR}/qemu/overlays" for dtb in "${BOOT_DIR}/overlays/"*.dtb ; do if [ -f "${dtb}" ] ; then install_readonly "${dtb}" "${BASEDIR}/qemu/overlays/" fi done fi # Copy u-boot files to QEMU directory if [ "$ENABLE_UBOOT" = true ] ; then if [ -f "${BOOT_DIR}/u-boot.bin" ] ; then install_readonly "${BOOT_DIR}/u-boot.bin" "${BASEDIR}/qemu/u-boot.bin" fi if [ -f "${BOOT_DIR}/uboot.mkimage" ] ; then install_readonly "${BOOT_DIR}/uboot.mkimage" "${BASEDIR}/qemu/uboot.mkimage" fi if [ -f "${BOOT_DIR}/boot.scr" ] ; then install_readonly "${BOOT_DIR}/boot.scr" "${BASEDIR}/qemu/boot.scr" fi fi # Copy initramfs to QEMU directory if [ -f "${BOOT_DIR}/initramfs-${KERNEL_VERSION}" ] ; then install_readonly "${BOOT_DIR}/initramfs-${KERNEL_VERSION}" "${BASEDIR}/qemu/initramfs-${KERNEL_VERSION}" fi fi # Calculate size of the chroot directory in KB CHROOT_SIZE=$(expr "$(du -s "${R}" | awk '{ print $1 }')") # Calculate the amount of needed 512 Byte sectors TABLE_SECTORS=$(expr 1 \* 1024 \* 1024 \/ 512) FRMW_SECTORS=$(expr 64 \* 1024 \* 1024 \/ 512) ROOT_OFFSET=$(expr "${TABLE_SECTORS}" + "${FRMW_SECTORS}") # The root partition is EXT4 # This means more space than the actual used space of the chroot is used. # As overhead for journaling and reserved blocks 35% are added. ROOT_SECTORS=$(expr "$(expr "${CHROOT_SIZE}" + "${CHROOT_SIZE}" \/ 100 \* 35)" \* 1024 \/ 512) # Calculate required image size in 512 Byte sectors IMAGE_SECTORS=$(expr "${TABLE_SECTORS}" + "${FRMW_SECTORS}" + "${ROOT_SECTORS}") # Prepare image file if [ "$ENABLE_SPLITFS" = true ] ; then dd if=/dev/zero of="$IMAGE_NAME-frmw.img" bs=512 count="${TABLE_SECTORS}" dd if=/dev/zero of="$IMAGE_NAME-frmw.img" bs=512 count=0 seek="${FRMW_SECTORS}" dd if=/dev/zero of="$IMAGE_NAME-root.img" bs=512 count="${TABLE_SECTORS}" dd if=/dev/zero of="$IMAGE_NAME-root.img" bs=512 count=0 seek="${ROOT_SECTORS}" # Write firmware/boot partition tables sfdisk -q -L -uS -f "$IMAGE_NAME-frmw.img" 2> /dev/null < /dev/null < /dev/null < .password # Initialize encrypted partition echo "YES" | cryptsetup luksFormat "${ROOT_LOOP}" -c "${CRYPTFS_CIPHER}" -s "${CRYPTFS_XTSKEYSIZE}" .password # Open encrypted partition and setup mapping cryptsetup luksOpen "${ROOT_LOOP}" -d .password "${CRYPTFS_MAPPING}" # Secure delete password keyfile shred -zu .password # Update temporary loop device ROOT_LOOP="/dev/mapper/${CRYPTFS_MAPPING}" # Wipe encrypted partition (encryption cipher is used for randomness) dd if=/dev/zero of="${ROOT_LOOP}" bs=512 count="$(blockdev --getsz "${ROOT_LOOP}")" fi # Build filesystems mkfs.vfat "$FRMW_LOOP" mkfs.ext4 "$ROOT_LOOP" # Mount the temporary loop devices mkdir -p "$BUILDDIR/mount" mount "$ROOT_LOOP" "$BUILDDIR/mount" mkdir -p "$BUILDDIR/mount/boot/firmware" mount "$FRMW_LOOP" "$BUILDDIR/mount/boot/firmware" # Copy all files from the chroot to the loop device mount point directory rsync -a "${R}/" "$BUILDDIR/mount/" # Unmount all temporary loop devices and mount points cleanup # Create block map file(s) of image(s) if [ "$ENABLE_SPLITFS" = true ] ; then # Create block map files for "bmaptool" bmaptool create -o "$IMAGE_NAME-frmw.bmap" "$IMAGE_NAME-frmw.img" bmaptool create -o "$IMAGE_NAME-root.bmap" "$IMAGE_NAME-root.img" # Image was successfully created echo "$IMAGE_NAME-frmw.img ($(expr \( "${TABLE_SECTORS}" + "${FRMW_SECTORS}" \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created" echo "$IMAGE_NAME-root.img ($(expr \( "${TABLE_SECTORS}" + "${ROOT_SECTORS}" \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created" else # Create block map file for "bmaptool" bmaptool create -o "$IMAGE_NAME.bmap" "$IMAGE_NAME.img" # Image was successfully created echo "$IMAGE_NAME.img ($(expr \( "${TABLE_SECTORS}" + "${FRMW_SECTORS}" + "${ROOT_SECTORS}" \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created" # Create qemu qcow2 image if [ "$ENABLE_QEMU" = true ] ; then QEMU_IMAGE=${QEMU_IMAGE:=${BASEDIR}/qemu/${DATE}-${KERNEL_ARCH}-CURRENT-rpi${RPI_MODEL}-${RELEASE}-${RELEASE_ARCH}} QEMU_SIZE=16G qemu-img convert -f raw -O qcow2 "$IMAGE_NAME".img "$QEMU_IMAGE".qcow2 qemu-img resize "$QEMU_IMAGE".qcow2 $QEMU_SIZE echo "$QEMU_IMAGE.qcow2 ($QEMU_SIZE)" ": successfully created" fi fi