#!/bin/sh ######################################################################## # rpi2-gen-image.sh ver2a 12/2015 # # Advanced debian "jessie" bootstrap script for RPi2 # # 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. # # some parts based on rpi2-build-image: # Copyright (C) 2015 Ryan Finnie # Copyright (C) 2015 Luca Falavigna ######################################################################## # Check if ./functions.sh script exists if [ ! -r "./functions.sh" ] ; then echo "error: './functions.sh' required script not found. please reinstall the latest script version!" exit 1 fi # Load utility functions . ./functions.sh # Introduce settings set -e echo -n -e "\n#\n# RPi2 Bootstrap Settings\n#\n" set -x # Debian release RELEASE=${RELEASE:=jessie} KERNEL_ARCH=${KERNEL_ARCH:=arm} RELEASE_ARCH=${RELEASE_ARCH:=armhf} CROSS_COMPILE=${CROSS_COMPILE:=arm-linux-gnueabihf-} COLLABORA_KERNEL=${COLLABORA_KERNEL:=3.18.0-trunk-rpi2} KERNEL_DEFCONFIG=${KERNEL_DEFCONFIG:=bcm2709_defconfig} QEMU_BINARY=${QEMU_BINARY:=/usr/bin/qemu-arm-static} # Build settings BASEDIR=$(pwd)/images/${RELEASE} BUILDDIR=${BASEDIR}/build # General settings HOSTNAME=${HOSTNAME:=rpi2-${RELEASE}} PASSWORD=${PASSWORD:=raspberry} DEFLOCAL=${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=${ENABLE_DHCP:=true} # Network settings (static) # only used on ENABLE_DHCP=false NET_ADDRESS=${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=${ENABLE_CONSOLE:=true} ENABLE_IPV6=${ENABLE_IPV6:=true} ENABLE_SSHD=${ENABLE_SSHD:=true} ENABLE_SOUND=${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=${ENABLE_USER:=true} ENABLE_ROOT=${ENABLE_ROOT:=false} ENABLE_ROOT_SSH=${ENABLE_ROOT_SSH:=false} # Advanced settings ENABLE_MINBASE=${ENABLE_MINBASE:=false} ENABLE_REDUCE=${ENABLE_REDUCE:=flase} ENABLE_UBOOT=${ENABLE_UBOOT:=false} ENABLE_FBTURBO=${ENABLE_FBTURBO:=false} ENABLE_HARDNET=${ENABLE_HARDNET:=false} ENABLE_IPTABLES=${ENABLE_IPTABLES:=false} ENABLE_SPLITFS=${ENABLE_SPLITFS:=false} # Kernel compilation settings BUILD_KERNEL=${BUILD_KERNEL:=false} KERNEL_THREADS=${KERNEL_THREADS:=1} KERNEL_HEADERS=${KERNEL_HEADERS:=true} KERNEL_MENUCONFIG=${KERNEL_MENUCONFIG:=false} KERNEL_REMOVESRC=${KERNEL_REMOVESRC:=true} # Kernel compilation from source directory settings KERNELSRC_DIR=${KERNELSRC_DIR:=""} KERNELSRC_CLEAN=${KERNELSRC_CLEAN:=false} KERNELSRC_CONFIG=${KERNELSRC_CONFIG:=true} KERNELSRC_PREBUILT=${KERNELSRC_PREBUILT:=false} # Image chroot path R=${BUILDDIR}/chroot CHROOT_SCRIPTS=${CHROOT_SCRIPTS:=""} # Packages required for bootstrapping REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git-core" # Missing packages that need to be installed MISSING_PACKAGES="" # Packages required in the chroot build environment APT_INCLUDES=${APT_INCLUDES:=""} APT_INCLUDES="${APT_INCLUDES},apt-transport-https,apt-utils,ca-certificates,debian-archive-keyring,dialog,sudo" set +x # Are we running as root? if [ "$(id -u)" -ne "0" ] ; then echo "error: this script must be executed with root privileges!" exit 1 fi # Check if ./bootstrap.d directory exists if [ ! -d "./bootstrap.d/" ] ; then echo "error: './bootstrap.d' required directory not found. please reinstall the latest script version!" exit 1 fi # Check if ./files directory exists if [ ! -d "./files/" ] ; then echo "error: './files' required directory not found. please reinstall the latest script version!" exit 1 fi # Check if specified KERNELSRC_DIR directory exists if [ -n "$KERNELSRC_DIR" ] && [ ! -d "$KERNELSRC_DIR" ] ; then echo "error: ${KERNELSRC_DIR} (KERNELSRC_DIR) specified directory not found!" exit 1 fi # Check if specified CHROOT_SCRIPTS directory exists if [ -n "$CHROOT_SCRIPTS" ] && [ ! -d "$CHROOT_SCRIPTS" ] ; then echo "error: ${CHROOT_SCRIPTS} (CHROOT_SCRIPTS) specified directory not found!" exit 1 fi # Add packages required for kernel cross compilation if [ "$BUILD_KERNEL" = true ] ; then REQUIRED_PACKAGES="${REQUIRED_PACKAGES} crossbuild-essential-armhf" if [ "$KERNEL_MENUCONFIG" = true ] ; then REQUIRED_PACKAGES="${REQUIRED_PACKAGES} ncurses-dev" fi fi # Check if all required packages are installed for package in $REQUIRED_PACKAGES ; do if [ "`dpkg-query -W -f='${Status}' $package`" != "install ok installed" ] ; then MISSING_PACKAGES="${MISSING_PACKAGES} $package" fi done # Ask if missing packages should get installed right now if [ -n "$MISSING_PACKAGES" ] ; then echo "the following packages needed by this script are not installed:" echo "$MISSING_PACKAGES" echo -n "\ndo you want to install the missing packages right now? [y/n] " read confirm if [ "$confirm" != "y" ] ; then exit 1 fi fi # Make sure all required packages are installed apt-get -qq -y install ${REQUIRED_PACKAGES} # Don't clobber an old build if [ -e "$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: ${BUILDDIR} not enough space left on this partition to generate the output image!" exit 1 fi # Warn if build directory has low free disk space <1024MB if [ "$(df --output=avail ${BUILDDIR} | sed "1d")" -le "1048576" ] ; then echo `df -h --output=avail ${BUILDDIR} | sed "1 s|.*Avail|warning: $partition is low on free space:|"` fi set -x # Call "cleanup" function on various signals and errors trap cleanup 0 1 2 3 6 # Add required packages for the minbase installation if [ "$ENABLE_MINBASE" = true ] ; then APT_INCLUDES="${APT_INCLUDES},vim-tiny,netbase,net-tools" else APT_INCLUDES="${APT_INCLUDES},locales,keyboard-configuration,console-setup" 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" 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" fi # Set KERNELSRC_CONFIG=true if [ "$BUILD_KERNEL" = true ] && [ -z "$KERNELSRC_DIR" ] ; then KERNELSRC_CONFIG=true fi ## MAIN bootstrap for SCRIPT in bootstrap.d/*.sh; do # Execute bootstrap scripts (lexicographical order) head -n 3 "$SCRIPT" . "$SCRIPT" done ## Custom bootstrap scripts if [ -d "custom.d" ] ; then # Execute custom bootstrap scripts (lexicographical order) for SCRIPT in custom.d/*.sh; do . "$SCRIPT" done fi # Invoke custom scripts if [ -n "$CHROOT_SCRIPTS" ] && [ -d "$CHROOT_SCRIPTS" ] ; then cp -r "${CHROOT_SCRIPTS}" "${R}/chroot_scripts" # Execute scripts inside the chroot (lexicographical order) 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 apt-utils chroot_exec apt-get purge -qq -y --force-yes apt-utils # Reduce the image size by removing and compressing if [ "$ENABLE_REDUCE" = true ] ; then # Install dpkg configuration fragment file install_readonly files/dpkg/01nodoc "$R/etc/dpkg/dpkg.cfg.d/01nodoc" # Install APT configuration fragment files install_readonly files/apt/02nocache "$R/etc/apt/apt.conf.d/02nocache" install_readonly files/apt/03compress "$R/etc/apt/apt.conf.d/03compress" install_readonly files/apt/04norecommends "$R/etc/apt/apt.conf.d/04norecommends" # Remove APT cache files rm -fr "$R/var/cache/apt/pkgcache.bin" rm -fr "$R/var/cache/apt/srcpkgcache.bin" # Remove all doc and man files find "$R/usr/share/doc" -depth -type f ! -name copyright | xargs rm || true find "$R/usr/share/doc" -empty | xargs rmdir || true rm -rf "$R/usr/share/man" "$R/usr/share/groff" "$R/usr/share/info" "$R/usr/share/lintian" "$R/usr/share/linda" "$R/var/cache/man" # Remove all translation files find "$R/usr/share/locale" -mindepth 1 -maxdepth 1 ! -name 'en' | xargs rm -r # Clean APT list of repositories rm -fr "$R/var/lib/apt/lists/*" chroot_exec apt-get -qq -y update # Remove GPU kernels if [ "$ENABLE_MINGPU" = true ] ; then rm -f "$R/boot/firmware/start.elf" rm -f "$R/boot/firmware/fixup.dat" rm -f "$R/boot/firmware/start_x.elf" rm -f "$R/boot/firmware/fixup_x.dat" fi fi # 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 "$R/etc/apt/sources.list.save" rm -f "$R/etc/resolvconf/resolv.conf.d/original" rm -f "$R/etc/*-" rm -f "$R/root/.bash_history" rm -f "$R/var/lib/urandom/random-seed" rm -f "$R/var/lib/dbus/machine-id" rm -f "$R/etc/machine-id" rm -f "$R/etc/apt/apt.conf.d/10proxy" rm -f "$R/etc/resolv.conf" rm -f "${R}${QEMU_BINARY}" # Calculate size of the chroot directory in KB CHROOT_SIZE=$(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} + ${FRMW_SECTORS}) # The root partition is EXT4 # This means more space than the actual used space of the chroot is used. # As overhead for journaling and reserved blocks 20% are added. ROOT_SECTORS=$(expr $(expr ${CHROOT_SIZE} + ${CHROOT_SIZE} \/ 100 \* 20) \* 1024 \/ 512) # Calculate required image size in 512 Byte sectors IMAGE_SECTORS=$(expr ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS}) # Prepare date string for image file name DATE="$(date +%Y-%m-%d)" # Prepare image file if [ "$ENABLE_SPLITFS" = true ] ; then dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" bs=512 count=${TABLE_SECTORS} dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" bs=512 count=0 seek=${FRMW_SECTORS} dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-root.img" bs=512 count=${TABLE_SECTORS} dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-root.img" bs=512 count=0 seek=${ROOT_SECTORS} # Write partition tables sfdisk -q -L -f "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" <