Raspi2-3_GenImage Commit - r105:a38e66ced2d0 · Collaboration Tremplin des Sciences

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#

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#

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# Build and Setup RPi2/3 Kernel

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# Build and Setup RPi2/3 Kernel

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#

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#

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# Load utility functions

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# Load utility functions

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. ./functions.sh

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. ./functions.sh

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# Fetch and build latest raspberry kernel

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# Fetch and build latest raspberry kernel

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if [ "$BUILD_KERNEL" = true ] ; then

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if [ "$BUILD_KERNEL" = true ] ; then

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# Setup source directory

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# Setup source directory

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mkdir -p "${R}/usr/src"

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mkdir -p "${R}/usr/src"

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# Copy existing kernel sources into chroot directory

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# Copy existing kernel sources into chroot directory

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if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then

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if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then

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# Copy kernel sources

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# Copy kernel sources

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cp -r "${KERNELSRC_DIR}" "${R}/usr/src"

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cp -r "${KERNELSRC_DIR}" "${R}/usr/src"

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# Clean the kernel sources

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# Clean the kernel sources

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if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then

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if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper

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fi

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fi

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else # KERNELSRC_DIR=""

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else # KERNELSRC_DIR=""

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# Fetch current raspberrypi kernel sources

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# Fetch current raspberrypi kernel sources

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git -C "${R}/usr/src" clone --depth=1 "${KERNEL_URL}"

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git -C "${R}/usr/src" clone --depth=1 "${KERNEL_URL}"

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fi

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fi

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# Calculate optimal number of kernel building threads

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# Calculate optimal number of kernel building threads

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if [ "$KERNEL_THREADS" = "1" ] && [ -r /proc/cpuinfo ] ; then

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if [ "$KERNEL_THREADS" = "1" ] && [ -r /proc/cpuinfo ] ; then

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KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)

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KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)

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fi

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fi

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# Configure and build kernel

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# Configure and build kernel

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if [ "$KERNELSRC_PREBUILT" = false ] ; then

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if [ "$KERNELSRC_PREBUILT" = false ] ; then

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# Remove device, network and filesystem drivers from kernel configuration

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# Remove device, network and filesystem drivers from kernel configuration

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if [ "$KERNEL_REDUCE" = true ] ; then

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if [ "$KERNEL_REDUCE" = true ] ; then

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"

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sed -i\

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sed -i\

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-e "s/$^CONFIG_SND.*\=$.*/\1n/"\

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-e "s/$^CONFIG_SND.*\=$.*/\1n/"\

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-e "s/$^CONFIG_SOUND.*\=$.*/\1n/"\

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-e "s/$^CONFIG_SOUND.*\=$.*/\1n/"\

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-e "s/$^CONFIG_AC97.*\=$.*/\1n/"\

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-e "s/$^CONFIG_AC97.*\=$.*/\1n/"\

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-e "s/$^CONFIG_VIDEO_.*\=$.*/\1n/"\

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-e "s/$^CONFIG_VIDEO_.*\=$.*/\1n/"\

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-e "s/$^CONFIG_MEDIA_TUNER.*\=$.*/\1n/"\

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-e "s/$^CONFIG_MEDIA_TUNER.*\=$.*/\1n/"\

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-e "s/$^CONFIG_DVB.*\=$[ym]/\1n/"\

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-e "s/$^CONFIG_DVB.*\=$[ym]/\1n/"\

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-e "s/$^CONFIG_REISERFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_REISERFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_JFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_JFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_XFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_XFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_GFS2.*\=$.*/\1n/"\

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-e "s/$^CONFIG_GFS2.*\=$.*/\1n/"\

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-e "s/$^CONFIG_OCFS2.*\=$.*/\1n/"\

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-e "s/$^CONFIG_OCFS2.*\=$.*/\1n/"\

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-e "s/$^CONFIG_BTRFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_BTRFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_HFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_HFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_JFFS2.*\=$[ym]/\1n/"\

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-e "s/$^CONFIG_JFFS2.*\=$[ym]/\1n/"\

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-e "s/$^CONFIG_UBIFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_UBIFS.*\=$.*/\1n/"\

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-e "s/$^CONFIG_SQUASHFS.*\=$[ym]/\1n/"\

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-e "s/$^CONFIG_SQUASHFS.*\=$[ym]/\1n/"\

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-e "s/$^CONFIG_W1.*\=$[ym]/\1n/"\

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-e "s/$^CONFIG_W1.*\=$[ym]/\1n/"\

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-e "s/$^CONFIG_HAMRADIO.*\=$.*/\1n/"\

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-e "s/$^CONFIG_HAMRADIO.*\=$.*/\1n/"\

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-e "s/$^CONFIG_CAN.*\=$.*/\1n/"\

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-e "s/$^CONFIG_CAN.*\=$.*/\1n/"\

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-e "s/$^CONFIG_IRDA.*\=$.*/\1n/"\

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-e "s/$^CONFIG_IRDA.*\=$.*/\1n/"\

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-e "s/$^CONFIG_BT_.*\=$.*/\1n/"\

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-e "s/$^CONFIG_BT_.*\=$.*/\1n/"\

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-e "s/$^CONFIG_WIMAX.*\=$[ym]/\1n/"\

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-e "s/$^CONFIG_WIMAX.*\=$[ym]/\1n/"\

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-e "s/$^CONFIG_6LOWPAN.*\=$.*/\1n/"\

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-e "s/$^CONFIG_6LOWPAN.*\=$.*/\1n/"\

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-e "s/$^CONFIG_IEEE802154.*\=$.*/\1n/"\

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-e "s/$^CONFIG_IEEE802154.*\=$.*/\1n/"\

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-e "s/$^CONFIG_NFC.*\=$.*/\1n/"\

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-e "s/$^CONFIG_NFC.*\=$.*/\1n/"\

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-e "s/$^CONFIG_FB_TFT=.*\=$.*/\1n/"\

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-e "s/$^CONFIG_FB_TFT=.*\=$.*/\1n/"\

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-e "s/$^CONFIG_TOUCHSCREEN.*\=$.*/\1n/"\

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-e "s/$^CONFIG_TOUCHSCREEN.*\=$.*/\1n/"\

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-e "s/$^CONFIG_USB_GSPCA_.*\=$.*/\1n/"\

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-e "s/$^CONFIG_USB_GSPCA_.*\=$.*/\1n/"\

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-e "s/$^CONFIG_DRM.*\=$.*/\1n/"\

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-e "s/$^CONFIG_DRM.*\=$.*/\1n/"\

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"${KERNEL_DIR}/.config"

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"${KERNEL_DIR}/.config"

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fi

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fi

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if [ "$KERNELSRC_CONFIG" = true ] ; then

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if [ "$KERNELSRC_CONFIG" = true ] ; then

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# Load default raspberry kernel configuration

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# Load default raspberry kernel configuration

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"

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if [ ! -z "$KERNELSRC_USRCONFIG" ] ; then

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if [ ! -z "$KERNELSRC_USRCONFIG" ] ; then

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cp $KERNELSRC_USRCONFIG ${KERNEL_DIR}/.config

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cp $KERNELSRC_USRCONFIG ${KERNEL_DIR}/.config

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fi

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fi

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# Start menu-driven kernel configuration (interactive)

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# Start menu-driven kernel configuration (interactive)

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if [ "$KERNEL_MENUCONFIG" = true ] ; then

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if [ "$KERNEL_MENUCONFIG" = true ] ; then

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig

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fi

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fi

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fi

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fi

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# Cross compile kernel and modules

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# Cross compile kernel and modules

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make -C "${KERNEL_DIR}" -j${KERNEL_THREADS} ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" zImage modules dtbs

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make -C "${KERNEL_DIR}" -j${KERNEL_THREADS} ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" zImage modules dtbs

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fi

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fi

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# Check if kernel compilation was successful

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# Check if kernel compilation was successful

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if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" ] ; then

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if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" ] ; then

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echo "error: kernel compilation failed! (zImage not found)"

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echo "error: kernel compilation failed! (zImage not found)"

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cleanup

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cleanup

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exit 1

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exit 1

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fi

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fi

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# Install kernel modules

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# Install kernel modules

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if [ "$ENABLE_REDUCE" = true ] ; then

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if [ "$ENABLE_REDUCE" = true ] ; then

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install

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else

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else

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install

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# Install kernel firmware

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# Install kernel firmware

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install

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fi

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fi

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# Install kernel headers

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# Install kernel headers

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if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then

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if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install

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fi

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fi

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# Prepare boot (firmware) directory

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# Prepare boot (firmware) directory

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mkdir "${BOOT_DIR}"

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mkdir "${BOOT_DIR}"

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# Get kernel release version

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# Get kernel release version

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KERNEL_VERSION=`cat "${KERNEL_DIR}/include/config/kernel.release"`

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KERNEL_VERSION=`cat "${KERNEL_DIR}/include/config/kernel.release"`

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# Copy kernel configuration file to the boot directory

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# Copy kernel configuration file to the boot directory

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install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"

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install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"

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# Copy dts and dtb device tree sources and binaries

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# Copy dts and dtb device tree sources and binaries

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mkdir "${BOOT_DIR}/overlays"

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mkdir "${BOOT_DIR}/overlays"

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install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb "${BOOT_DIR}/"

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install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb "${BOOT_DIR}/"

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install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtb* "${BOOT_DIR}/overlays/"

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install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtb* "${BOOT_DIR}/overlays/"

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install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"

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install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"

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if [ "$ENABLE_UBOOT" = false ] ; then

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if [ "$ENABLE_UBOOT" = false ] ; then

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# Convert and copy zImage kernel to the boot directory

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# Convert and copy zImage kernel to the boot directory

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"${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" "${BOOT_DIR}/${KERNEL_IMAGE}"

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"${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" "${BOOT_DIR}/${KERNEL_IMAGE}"

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else

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else

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# Copy zImage kernel to the boot directory

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# Copy zImage kernel to the boot directory

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install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" "${BOOT_DIR}/${KERNEL_IMAGE}"

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install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" "${BOOT_DIR}/${KERNEL_IMAGE}"

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fi

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fi

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# Remove kernel sources

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# Remove kernel sources

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if [ "$KERNEL_REMOVESRC" = true ] ; then

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if [ "$KERNEL_REMOVESRC" = true ] ; then

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rm -fr "${KERNEL_DIR}"

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rm -fr "${KERNEL_DIR}"

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else

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else

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" ~~mrproper~~

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#make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" oldconfig

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" oldconfig

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare

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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare

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#make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper

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fi

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fi

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if [ -n "$RPI_FIRMWARE_DIR" ] && [ -d "$RPI_FIRMWARE_DIR" ] ; then

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if [ -n "$RPI_FIRMWARE_DIR" ] && [ -d "$RPI_FIRMWARE_DIR" ] ; then

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# Install boot binaries from local directory

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# Install boot binaries from local directory

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cp ${RPI_FIRMWARE_DIR}/boot/bootcode.bin ${BOOT_DIR}/bootcode.bin

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cp ${RPI_FIRMWARE_DIR}/boot/bootcode.bin ${BOOT_DIR}/bootcode.bin

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cp ${RPI_FIRMWARE_DIR}/boot/fixup.dat ${BOOT_DIR}/fixup.dat

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cp ${RPI_FIRMWARE_DIR}/boot/fixup.dat ${BOOT_DIR}/fixup.dat

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cp ${RPI_FIRMWARE_DIR}/boot/fixup_cd.dat ${BOOT_DIR}/fixup_cd.dat

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cp ${RPI_FIRMWARE_DIR}/boot/fixup_cd.dat ${BOOT_DIR}/fixup_cd.dat

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cp ${RPI_FIRMWARE_DIR}/boot/fixup_x.dat ${BOOT_DIR}/fixup_x.dat

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cp ${RPI_FIRMWARE_DIR}/boot/fixup_x.dat ${BOOT_DIR}/fixup_x.dat

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cp ${RPI_FIRMWARE_DIR}/boot/start.elf ${BOOT_DIR}/start.elf

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cp ${RPI_FIRMWARE_DIR}/boot/start.elf ${BOOT_DIR}/start.elf

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cp ${RPI_FIRMWARE_DIR}/boot/start_cd.elf ${BOOT_DIR}/start_cd.elf

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cp ${RPI_FIRMWARE_DIR}/boot/start_cd.elf ${BOOT_DIR}/start_cd.elf

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cp ${RPI_FIRMWARE_DIR}/boot/start_x.elf ${BOOT_DIR}/start_x.elf

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cp ${RPI_FIRMWARE_DIR}/boot/start_x.elf ${BOOT_DIR}/start_x.elf

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else

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else

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# Install latest boot binaries from raspberry/firmware github

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# Install latest boot binaries from raspberry/firmware github

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wget -q -O "${BOOT_DIR}/bootcode.bin" "${FIRMWARE_URL}/bootcode.bin"

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wget -q -O "${BOOT_DIR}/bootcode.bin" "${FIRMWARE_URL}/bootcode.bin"

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wget -q -O "${BOOT_DIR}/fixup.dat" "${FIRMWARE_URL}/fixup.dat"

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wget -q -O "${BOOT_DIR}/fixup.dat" "${FIRMWARE_URL}/fixup.dat"

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wget -q -O "${BOOT_DIR}/fixup_cd.dat" "${FIRMWARE_URL}/fixup_cd.dat"

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wget -q -O "${BOOT_DIR}/fixup_cd.dat" "${FIRMWARE_URL}/fixup_cd.dat"

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wget -q -O "${BOOT_DIR}/fixup_x.dat" "${FIRMWARE_URL}/fixup_x.dat"

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wget -q -O "${BOOT_DIR}/fixup_x.dat" "${FIRMWARE_URL}/fixup_x.dat"

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wget -q -O "${BOOT_DIR}/start.elf" "${FIRMWARE_URL}/start.elf"

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wget -q -O "${BOOT_DIR}/start.elf" "${FIRMWARE_URL}/start.elf"

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wget -q -O "${BOOT_DIR}/start_cd.elf" "${FIRMWARE_URL}/start_cd.elf"

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wget -q -O "${BOOT_DIR}/start_cd.elf" "${FIRMWARE_URL}/start_cd.elf"

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wget -q -O "${BOOT_DIR}/start_x.elf" "${FIRMWARE_URL}/start_x.elf"

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wget -q -O "${BOOT_DIR}/start_x.elf" "${FIRMWARE_URL}/start_x.elf"

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fi

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fi

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else # BUILD_KERNEL=false

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else # BUILD_KERNEL=false

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# Kernel installation

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# Kernel installation

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chroot_exec apt-get -qq -y --no-install-recommends install linux-image-"${COLLABORA_KERNEL}" raspberrypi-bootloader-nokernel

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chroot_exec apt-get -qq -y --no-install-recommends install linux-image-"${COLLABORA_KERNEL}" raspberrypi-bootloader-nokernel

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# Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot

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# Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot

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chroot_exec apt-get -qq -y install flash-kernel

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chroot_exec apt-get -qq -y install flash-kernel

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# Check if kernel installation was successful

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# Check if kernel installation was successful

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VMLINUZ="$(ls -1 ${R}/boot/vmlinuz-* | sort | tail -n 1)"

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VMLINUZ="$(ls -1 ${R}/boot/vmlinuz-* | sort | tail -n 1)"

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if [ -z "$VMLINUZ" ] ; then

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if [ -z "$VMLINUZ" ] ; then

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echo "error: kernel installation failed! (/boot/vmlinuz-* not found)"

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echo "error: kernel installation failed! (/boot/vmlinuz-* not found)"

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cleanup

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cleanup

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exit 1

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exit 1

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fi

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fi

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# Copy vmlinuz kernel to the boot directory

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# Copy vmlinuz kernel to the boot directory

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install_readonly "${VMLINUZ}" "${BOOT_DIR}/${KERNEL_IMAGE}"

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install_readonly "${VMLINUZ}" "${BOOT_DIR}/${KERNEL_IMAGE}"

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fi

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fi

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# Setup firmware boot cmdline

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# Setup firmware boot cmdline

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if [ "$ENABLE_SPLITFS" = true ] ; then

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if [ "$ENABLE_SPLITFS" = true ] ; then

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CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda1 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1"

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CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda1 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1"

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else

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else

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CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1"

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CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1"

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fi

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fi

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# Add encrypted root partition to cmdline.txt

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# Add encrypted root partition to cmdline.txt

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if [ "$ENABLE_CRYPTFS" = true ] ; then

188

if [ "$ENABLE_CRYPTFS" = true ] ; then

189

if [ "$ENABLE_SPLITFS" = true ] ; then

189

if [ "$ENABLE_SPLITFS" = true ] ; then

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CMDLINE=$(echo ${CMDLINE} | sed "s/sda1/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/sda1:${CRYPTFS_MAPPING}/")

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CMDLINE=$(echo ${CMDLINE} | sed "s/sda1/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/sda1:${CRYPTFS_MAPPING}/")

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else

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else

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CMDLINE=$(echo ${CMDLINE} | sed "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/mmcblk0p2:${CRYPTFS_MAPPING}/")

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CMDLINE=$(echo ${CMDLINE} | sed "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/mmcblk0p2:${CRYPTFS_MAPPING}/")

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fi

193

fi

194

fi

194

fi

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# Add serial console support

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# Add serial console support

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if [ "$ENABLE_CONSOLE" = true ] ; then

197

if [ "$ENABLE_CONSOLE" = true ] ; then

198

CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200"

198

CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200"

199

fi

199

fi

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# Remove IPv6 networking support

201

# Remove IPv6 networking support

202

if [ "$ENABLE_IPV6" = false ] ; then

202

if [ "$ENABLE_IPV6" = false ] ; then

203

CMDLINE="${CMDLINE} ipv6.disable=1"

203

CMDLINE="${CMDLINE} ipv6.disable=1"

204

fi

204

fi

205

206

# Automatically assign predictable network interface names

206

# Automatically assign predictable network interface names

207

if [ "$ENABLE_IFNAMES" = false ] ; then

207

if [ "$ENABLE_IFNAMES" = false ] ; then

208

CMDLINE="${CMDLINE} net.ifnames=0"

208

CMDLINE="${CMDLINE} net.ifnames=0"

209

else

209

else

210

CMDLINE="${CMDLINE} net.ifnames=1"

210

CMDLINE="${CMDLINE} net.ifnames=1"

211

fi

211

fi

212

213

# Set init to systemd if required by Debian release

213

# Set init to systemd if required by Debian release

214

if [ "$RELEASE" = "stretch" ] ; then

214

if [ "$RELEASE" = "stretch" ] ; then

215

CMDLINE="${CMDLINE} init=/bin/systemd"

215

CMDLINE="${CMDLINE} init=/bin/systemd"

216

fi

216

fi

217

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# Install firmware boot cmdline

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# Install firmware boot cmdline

219

echo "${CMDLINE}" > "${BOOT_DIR}/cmdline.txt"

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echo "${CMDLINE}" > "${BOOT_DIR}/cmdline.txt"

220

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# Install firmware config

221

# Install firmware config

222

install_readonly files/boot/config.txt "${BOOT_DIR}/config.txt"

222

install_readonly files/boot/config.txt "${BOOT_DIR}/config.txt"

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224

# Setup minimal GPU memory allocation size: 16MB (no X)

224

# Setup minimal GPU memory allocation size: 16MB (no X)

225

if [ "$ENABLE_MINGPU" = true ] ; then

225

if [ "$ENABLE_MINGPU" = true ] ; then

226

echo "gpu_mem=16" >> "${BOOT_DIR}/config.txt"

226

echo "gpu_mem=16" >> "${BOOT_DIR}/config.txt"

227

fi

227

fi

228

229

# Setup boot with initramfs

229

# Setup boot with initramfs

230

if [ "$ENABLE_INITRAMFS" = true ] ; then

230

if [ "$ENABLE_INITRAMFS" = true ] ; then

231

echo "initramfs initramfs-${KERNEL_VERSION} followkernel" >> "${BOOT_DIR}/config.txt"

231

echo "initramfs initramfs-${KERNEL_VERSION} followkernel" >> "${BOOT_DIR}/config.txt"

232

fi

232

fi

233

234

# Disable RPi3 Bluetooth and restore ttyAMA0 serial device

234

# Disable RPi3 Bluetooth and restore ttyAMA0 serial device

235

if [ "$RPI_MODEL" = 3 ] ; then

235

if [ "$RPI_MODEL" = 3 ] ; then

236

if [ "$ENABLE_CONSOLE" = true ] ; then

236

if [ "$ENABLE_CONSOLE" = true ] ; then

237

echo "dtoverlay=pi3-miniuart-bt" >> "${BOOT_DIR}/config.txt"

237

echo "dtoverlay=pi3-miniuart-bt" >> "${BOOT_DIR}/config.txt"

238

fi

238

fi

239

fi

239

fi

240

241

# Create firmware configuration and cmdline symlinks

241

# Create firmware configuration and cmdline symlinks

242

ln -sf firmware/config.txt "${R}/boot/config.txt"

242

ln -sf firmware/config.txt "${R}/boot/config.txt"

243

ln -sf firmware/cmdline.txt "${R}/boot/cmdline.txt"

243

ln -sf firmware/cmdline.txt "${R}/boot/cmdline.txt"

244

245

# Install and setup kernel modules to load at boot

245

# Install and setup kernel modules to load at boot

246

mkdir -p "${R}/lib/modules-load.d/"

246

mkdir -p "${R}/lib/modules-load.d/"

247

install_readonly files/modules/rpi2.conf "${R}/lib/modules-load.d/rpi2.conf"

247

install_readonly files/modules/rpi2.conf "${R}/lib/modules-load.d/rpi2.conf"

248

249

# Load hardware random module at boot

249

# Load hardware random module at boot

250

if [ "$ENABLE_HWRANDOM" = true ] && [ "$BUILD_KERNEL" = false ] ; then

250

if [ "$ENABLE_HWRANDOM" = true ] && [ "$BUILD_KERNEL" = false ] ; then

251

sed -i "s/^# bcm2708_rng/bcm2708_rng/" "${R}/lib/modules-load.d/rpi2.conf"

251

sed -i "s/^# bcm2708_rng/bcm2708_rng/" "${R}/lib/modules-load.d/rpi2.conf"

252

fi

252

fi

253

254

# Load sound module at boot

254

# Load sound module at boot

255

if [ "$ENABLE_SOUND" = true ] ; then

255

if [ "$ENABLE_SOUND" = true ] ; then

256

sed -i "s/^# snd_bcm2835/snd_bcm2835/" "${R}/lib/modules-load.d/rpi2.conf"

256

sed -i "s/^# snd_bcm2835/snd_bcm2835/" "${R}/lib/modules-load.d/rpi2.conf"

257

fi

257

fi

258

259

# Install kernel modules blacklist

259

# Install kernel modules blacklist

260

mkdir -p "${ETC_DIR}/modprobe.d/"

260

mkdir -p "${ETC_DIR}/modprobe.d/"

261

install_readonly files/modules/raspi-blacklist.conf "${ETC_DIR}/modprobe.d/raspi-blacklist.conf"

261

install_readonly files/modules/raspi-blacklist.conf "${ETC_DIR}/modprobe.d/raspi-blacklist.conf"

262

263

# Install and setup fstab

263

# Install and setup fstab

264

install_readonly files/mount/fstab "${ETC_DIR}/fstab"

264

install_readonly files/mount/fstab "${ETC_DIR}/fstab"

265

266

# Add usb/sda disk root partition to fstab

266

# Add usb/sda disk root partition to fstab

267

if [ "$ENABLE_SPLITFS" = true ] && [ "$ENABLE_CRYPTFS" = false ] ; then

267

if [ "$ENABLE_SPLITFS" = true ] && [ "$ENABLE_CRYPTFS" = false ] ; then

268

sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/fstab"

268

sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/fstab"

269

fi

269

fi

270

271

# Add encrypted root partition to fstab and crypttab

271

# Add encrypted root partition to fstab and crypttab

272

if [ "$ENABLE_CRYPTFS" = true ] ; then

272

if [ "$ENABLE_CRYPTFS" = true ] ; then

273

# Replace fstab root partition with encrypted partition mapping

273

# Replace fstab root partition with encrypted partition mapping

274

sed -i "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING}/" "${ETC_DIR}/fstab"

274

sed -i "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING}/" "${ETC_DIR}/fstab"

275

276

# Add encrypted partition to crypttab and fstab

276

# Add encrypted partition to crypttab and fstab

277

install_readonly files/mount/crypttab "${ETC_DIR}/crypttab"

277

install_readonly files/mount/crypttab "${ETC_DIR}/crypttab"

278

echo "${CRYPTFS_MAPPING} /dev/mmcblk0p2 none luks" >> "${ETC_DIR}/crypttab"

278

echo "${CRYPTFS_MAPPING} /dev/mmcblk0p2 none luks" >> "${ETC_DIR}/crypttab"

279

280

if [ "$ENABLE_SPLITFS" = true ] ; then

280

if [ "$ENABLE_SPLITFS" = true ] ; then

281

# Add usb/sda disk to crypttab

281

# Add usb/sda disk to crypttab

282

sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/crypttab"

282

sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/crypttab"

283

fi

283

fi

284

fi

284

fi

285

286

# Generate initramfs file

286

# Generate initramfs file

287

if [ "$ENABLE_INITRAMFS" = true ] ; then

287

if [ "$ENABLE_INITRAMFS" = true ] ; then

288

if [ "$ENABLE_CRYPTFS" = true ] ; then

288

if [ "$ENABLE_CRYPTFS" = true ] ; then

289

# Include initramfs scripts to auto expand encrypted root partition

289

# Include initramfs scripts to auto expand encrypted root partition

290

if [ "$EXPANDROOT" = true ] ; then

290

if [ "$EXPANDROOT" = true ] ; then

291

install_exec files/initramfs/expand_encrypted_rootfs "${ETC_DIR}/initramfs-tools/scripts/init-premount/expand_encrypted_rootfs"

291

install_exec files/initramfs/expand_encrypted_rootfs "${ETC_DIR}/initramfs-tools/scripts/init-premount/expand_encrypted_rootfs"

292

install_exec files/initramfs/expand-premount "${ETC_DIR}/initramfs-tools/scripts/local-premount/expand-premount"

292

install_exec files/initramfs/expand-premount "${ETC_DIR}/initramfs-tools/scripts/local-premount/expand-premount"

293

install_exec files/initramfs/expand-tools "${ETC_DIR}/initramfs-tools/hooks/expand-tools"

293

install_exec files/initramfs/expand-tools "${ETC_DIR}/initramfs-tools/hooks/expand-tools"

294

fi

294

fi

295

296

# Disable SSHD inside initramfs

296

# Disable SSHD inside initramfs

297

printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"

297

printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"

298

299

# Dummy mapping required by mkinitramfs

299

# Dummy mapping required by mkinitramfs

300

echo "0 1 crypt $(echo ${CRYPTFS_CIPHER} | cut -d ':' -f 1) ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 0 7:0 4096" | chroot_exec dmsetup create "${CRYPTFS_MAPPING}"

300

echo "0 1 crypt $(echo ${CRYPTFS_CIPHER} | cut -d ':' -f 1) ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 0 7:0 4096" | chroot_exec dmsetup create "${CRYPTFS_MAPPING}"

301

302

# Generate initramfs with encrypted root partition support

302

# Generate initramfs with encrypted root partition support

303

chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"

303

chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"

304

305

# Remove dummy mapping

305

# Remove dummy mapping

306

chroot_exec cryptsetup close "${CRYPTFS_MAPPING}"

306

chroot_exec cryptsetup close "${CRYPTFS_MAPPING}"

307

else

307

else

308

# Generate initramfs without encrypted root partition support

308

# Generate initramfs without encrypted root partition support

309

chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"

309

chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"

310

fi

310

fi

311

fi

311

fi

312

313

# Install sysctl.d configuration files

313

# Install sysctl.d configuration files

314

install_readonly files/sysctl.d/81-rpi-vm.conf "${ETC_DIR}/sysctl.d/81-rpi-vm.conf"

314

install_readonly files/sysctl.d/81-rpi-vm.conf "${ETC_DIR}/sysctl.d/81-rpi-vm.conf"

315

316

# make symlinks

317

ln -sf "${KERNEL_DIR}" "${R}/lib/modules/${KERNEL_VERSION}/build"

318

ln -sf "${KERNEL_DIR}" "${R}/lib/modules/${KERNEL_VERSION}/source"

319

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             #
             # Build and Setup RPi2/3 Kernel
             #
             # Load utility functions
             . ./functions.sh
             # Fetch and build latest raspberry kernel
             if [ "$BUILD_KERNEL" = true ] ; then
               # Setup source directory
               mkdir -p "${R}/usr/src"
               # Copy existing kernel sources into chroot directory
               if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then
                 # Copy kernel sources
                 cp -r "${KERNELSRC_DIR}" "${R}/usr/src"
                 # Clean the kernel sources
                 if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then
                   make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper
                 fi
               else # KERNELSRC_DIR=""
                 # Fetch current raspberrypi kernel sources
                 git -C "${R}/usr/src" clone --depth=1 "${KERNEL_URL}"
               fi
               # Calculate optimal number of kernel building threads
               if [ "$KERNEL_THREADS" = "1" ] && [ -r /proc/cpuinfo ] ; then
                 KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)
               fi
               # Configure and build kernel
               if [ "$KERNELSRC_PREBUILT" = false ] ; then
                 # Remove device, network and filesystem drivers from kernel configuration
                 if [ "$KERNEL_REDUCE" = true ] ; then
                   make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
                   sed -i\
                   -e "s/\(^CONFIG_SND.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_SOUND.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_AC97.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_VIDEO_.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_MEDIA_TUNER.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_DVB.*\=\)[ym]/\1n/"\
                   -e "s/\(^CONFIG_REISERFS.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_JFS.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_XFS.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_GFS2.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_OCFS2.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_BTRFS.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_HFS.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_JFFS2.*\=\)[ym]/\1n/"\
                   -e "s/\(^CONFIG_UBIFS.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_SQUASHFS.*\=\)[ym]/\1n/"\
                   -e "s/\(^CONFIG_W1.*\=\)[ym]/\1n/"\
                   -e "s/\(^CONFIG_HAMRADIO.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_CAN.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_IRDA.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_BT_.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_WIMAX.*\=\)[ym]/\1n/"\
                   -e "s/\(^CONFIG_6LOWPAN.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_IEEE802154.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_NFC.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_FB_TFT=.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_TOUCHSCREEN.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_USB_GSPCA_.*\=\).*/\1n/"\
                   -e "s/\(^CONFIG_DRM.*\=\).*/\1n/"\
                   "${KERNEL_DIR}/.config"
                 fi
                 if [ "$KERNELSRC_CONFIG" = true ] ; then
                   # Load default raspberry kernel configuration
                   make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
                   if [ ! -z "$KERNELSRC_USRCONFIG" ] ; then
                     cp $KERNELSRC_USRCONFIG ${KERNEL_DIR}/.config
                   fi
                   # Start menu-driven kernel configuration (interactive)
                   if [ "$KERNEL_MENUCONFIG" = true ] ; then
                     make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig
                   fi
                 fi
                 # Cross compile kernel and modules
                 make -C "${KERNEL_DIR}" -j${KERNEL_THREADS} ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" zImage modules dtbs
               fi
               # Check if kernel compilation was successful
               if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" ] ; then
                 echo "error: kernel compilation failed! (zImage not found)"
                 cleanup
                 exit 1
               fi
               # Install kernel modules
               if [ "$ENABLE_REDUCE" = true ] ; then
                 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install
               else
                 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install
                 # Install kernel firmware
                 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install
               fi
               # Install kernel headers
               if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then
                 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install
               fi
               # Prepare boot (firmware) directory
               mkdir "${BOOT_DIR}"
               # Get kernel release version
               KERNEL_VERSION=`cat "${KERNEL_DIR}/include/config/kernel.release"`
               # Copy kernel configuration file to the boot directory
               install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"
               # Copy dts and dtb device tree sources and binaries
               mkdir "${BOOT_DIR}/overlays"
               install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb "${BOOT_DIR}/"
               install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtb* "${BOOT_DIR}/overlays/"
               install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"
               if [ "$ENABLE_UBOOT" = false ] ; then
                 # Convert and copy zImage kernel to the boot directory
                 "${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" "${BOOT_DIR}/${KERNEL_IMAGE}"
               else
                 # Copy zImage kernel to the boot directory
                 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" "${BOOT_DIR}/${KERNEL_IMAGE}"
               fi
               # Remove kernel sources
               if [ "$KERNEL_REMOVESRC" = true ] ; then
                 rm -fr "${KERNEL_DIR}"
               else
-                make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper
+                #make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" oldconfig
-                make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" oldconfig
                 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare
+                #make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper
               fi
               if [ -n "$RPI_FIRMWARE_DIR" ] && [ -d "$RPI_FIRMWARE_DIR" ] ; then
                 # Install boot binaries from local directory
                 cp ${RPI_FIRMWARE_DIR}/boot/bootcode.bin ${BOOT_DIR}/bootcode.bin
                 cp ${RPI_FIRMWARE_DIR}/boot/fixup.dat ${BOOT_DIR}/fixup.dat
                 cp ${RPI_FIRMWARE_DIR}/boot/fixup_cd.dat ${BOOT_DIR}/fixup_cd.dat
                 cp ${RPI_FIRMWARE_DIR}/boot/fixup_x.dat ${BOOT_DIR}/fixup_x.dat
                 cp ${RPI_FIRMWARE_DIR}/boot/start.elf ${BOOT_DIR}/start.elf
                 cp ${RPI_FIRMWARE_DIR}/boot/start_cd.elf ${BOOT_DIR}/start_cd.elf
                 cp ${RPI_FIRMWARE_DIR}/boot/start_x.elf ${BOOT_DIR}/start_x.elf
               else
                 # Install latest boot binaries from raspberry/firmware github
                 wget -q -O "${BOOT_DIR}/bootcode.bin" "${FIRMWARE_URL}/bootcode.bin"
                 wget -q -O "${BOOT_DIR}/fixup.dat" "${FIRMWARE_URL}/fixup.dat"
                 wget -q -O "${BOOT_DIR}/fixup_cd.dat" "${FIRMWARE_URL}/fixup_cd.dat"
                 wget -q -O "${BOOT_DIR}/fixup_x.dat" "${FIRMWARE_URL}/fixup_x.dat"
                 wget -q -O "${BOOT_DIR}/start.elf" "${FIRMWARE_URL}/start.elf"
                 wget -q -O "${BOOT_DIR}/start_cd.elf" "${FIRMWARE_URL}/start_cd.elf"
                 wget -q -O "${BOOT_DIR}/start_x.elf" "${FIRMWARE_URL}/start_x.elf"
               fi
             else # BUILD_KERNEL=false
               # Kernel installation
               chroot_exec apt-get -qq -y --no-install-recommends install linux-image-"${COLLABORA_KERNEL}" raspberrypi-bootloader-nokernel
               # Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot
               chroot_exec apt-get -qq -y install flash-kernel
               # Check if kernel installation was successful
               VMLINUZ="$(ls -1 ${R}/boot/vmlinuz-* | sort | tail -n 1)"
               if [ -z "$VMLINUZ" ] ; then
                 echo "error: kernel installation failed! (/boot/vmlinuz-* not found)"
                 cleanup
                 exit 1
               fi
               # Copy vmlinuz kernel to the boot directory
               install_readonly "${VMLINUZ}" "${BOOT_DIR}/${KERNEL_IMAGE}"
             fi
             # Setup firmware boot cmdline
             if [ "$ENABLE_SPLITFS" = true ] ; then
               CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda1 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1"
             else
               CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1"
             fi
             # Add encrypted root partition to cmdline.txt
             if [ "$ENABLE_CRYPTFS" = true ] ; then
               if [ "$ENABLE_SPLITFS" = true ] ; then
                 CMDLINE=$(echo ${CMDLINE} | sed "s/sda1/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/sda1:${CRYPTFS_MAPPING}/")
               else
                 CMDLINE=$(echo ${CMDLINE} | sed "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/mmcblk0p2:${CRYPTFS_MAPPING}/")
               fi
             fi
             # Add serial console support
             if [ "$ENABLE_CONSOLE" = true ] ; then
               CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200"
             fi
             # Remove IPv6 networking support
             if [ "$ENABLE_IPV6" = false ] ; then
               CMDLINE="${CMDLINE} ipv6.disable=1"
             fi
             # Automatically assign predictable network interface names
             if [ "$ENABLE_IFNAMES" = false ] ; then
               CMDLINE="${CMDLINE} net.ifnames=0"
             else
               CMDLINE="${CMDLINE} net.ifnames=1"
             fi
             # Set init to systemd if required by Debian release
             if [ "$RELEASE" = "stretch" ] ; then
               CMDLINE="${CMDLINE} init=/bin/systemd"
             fi
             # Install firmware boot cmdline
             echo "${CMDLINE}" > "${BOOT_DIR}/cmdline.txt"
             # Install firmware config
             install_readonly files/boot/config.txt "${BOOT_DIR}/config.txt"
             # Setup minimal GPU memory allocation size: 16MB (no X)
             if [ "$ENABLE_MINGPU" = true ] ; then
               echo "gpu_mem=16" >> "${BOOT_DIR}/config.txt"
             fi
             # Setup boot with initramfs
             if [ "$ENABLE_INITRAMFS" = true ] ; then
               echo "initramfs initramfs-${KERNEL_VERSION} followkernel" >> "${BOOT_DIR}/config.txt"
             fi
             # Disable RPi3 Bluetooth and restore ttyAMA0 serial device
             if [ "$RPI_MODEL" = 3 ] ; then
               if [ "$ENABLE_CONSOLE" = true ] ; then
                 echo "dtoverlay=pi3-miniuart-bt" >> "${BOOT_DIR}/config.txt"
               fi
             fi
             # Create firmware configuration and cmdline symlinks
             ln -sf firmware/config.txt "${R}/boot/config.txt"
             ln -sf firmware/cmdline.txt "${R}/boot/cmdline.txt"
             # Install and setup kernel modules to load at boot
             mkdir -p "${R}/lib/modules-load.d/"
             install_readonly files/modules/rpi2.conf "${R}/lib/modules-load.d/rpi2.conf"
             # Load hardware random module at boot
             if [ "$ENABLE_HWRANDOM" = true ] && [ "$BUILD_KERNEL" = false ] ; then
               sed -i "s/^# bcm2708_rng/bcm2708_rng/" "${R}/lib/modules-load.d/rpi2.conf"
             fi
             # Load sound module at boot
             if [ "$ENABLE_SOUND" = true ] ; then
               sed -i "s/^# snd_bcm2835/snd_bcm2835/" "${R}/lib/modules-load.d/rpi2.conf"
             fi
             # Install kernel modules blacklist
             mkdir -p "${ETC_DIR}/modprobe.d/"
             install_readonly files/modules/raspi-blacklist.conf "${ETC_DIR}/modprobe.d/raspi-blacklist.conf"
             # Install and setup fstab
             install_readonly files/mount/fstab "${ETC_DIR}/fstab"
             # Add usb/sda disk root partition to fstab
             if [ "$ENABLE_SPLITFS" = true ] && [ "$ENABLE_CRYPTFS" = false ] ; then
               sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/fstab"
             fi
             # Add encrypted root partition to fstab and crypttab
             if [ "$ENABLE_CRYPTFS" = true ] ; then
               # Replace fstab root partition with encrypted partition mapping
               sed -i "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING}/" "${ETC_DIR}/fstab"
               # Add encrypted partition to crypttab and fstab
               install_readonly files/mount/crypttab "${ETC_DIR}/crypttab"
               echo "${CRYPTFS_MAPPING} /dev/mmcblk0p2 none luks" >> "${ETC_DIR}/crypttab"
               if [ "$ENABLE_SPLITFS" = true ] ; then
                 # Add usb/sda disk to crypttab
                 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/crypttab"
               fi
             fi
             # Generate initramfs file
             if [ "$ENABLE_INITRAMFS" = true ] ; then
               if [ "$ENABLE_CRYPTFS" = true ] ; then
                 # Include initramfs scripts to auto expand encrypted root partition
                 if [ "$EXPANDROOT" = true ] ; then
                   install_exec files/initramfs/expand_encrypted_rootfs "${ETC_DIR}/initramfs-tools/scripts/init-premount/expand_encrypted_rootfs"
                   install_exec files/initramfs/expand-premount "${ETC_DIR}/initramfs-tools/scripts/local-premount/expand-premount"
                   install_exec files/initramfs/expand-tools "${ETC_DIR}/initramfs-tools/hooks/expand-tools"
                 fi
                 # Disable SSHD inside initramfs
                 printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"
                 # Dummy mapping required by mkinitramfs
                 echo "0 1 crypt $(echo ${CRYPTFS_CIPHER} | cut -d ':' -f 1) ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 0 7:0 4096" | chroot_exec dmsetup create "${CRYPTFS_MAPPING}"
                 # Generate initramfs with encrypted root partition support
                 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
                 # Remove dummy mapping
                 chroot_exec cryptsetup close "${CRYPTFS_MAPPING}"
               else
                 # Generate initramfs without encrypted root partition support
                 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
               fi
             fi
             # Install sysctl.d configuration files
             install_readonly files/sysctl.d/81-rpi-vm.conf "${ETC_DIR}/sysctl.d/81-rpi-vm.conf"
+            # make symlinks
+            ln -sf "${KERNEL_DIR}" "${R}/lib/modules/${KERNEL_VERSION}/build"
+            ln -sf "${KERNEL_DIR}" "${R}/lib/modules/${KERNEL_VERSION}/source"