13-kernel.sh
287 lines
| 11.7 KiB
| application/x-sh
|
BashLexer
/ bootstrap.d / 13-kernel.sh
Filip Pytloun
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r56 | # | ||
Jan Wagner
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r67 | # Build and Setup RPi2 Kernel | ||
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Filip Pytloun
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r56 | # | ||
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Jan Wagner
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r67 | # Load utility functions | ||
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Filip Pytloun
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r56 | . ./functions.sh | ||
| # Fetch and build latest raspberry kernel | ||||
| if [ "$BUILD_KERNEL" = true ] ; then | ||||
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Jan Wagner
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r72 | # Setup source directory | ||
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Jan Wagner
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r82 | mkdir -p "${R}/usr/src" | ||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r72 | # Copy existing kernel sources into chroot directory | ||
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Jan Wagner
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r75 | if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then | ||
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Jan Wagner
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r72 | # Copy kernel sources | ||
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Jan Wagner
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r75 | cp -r "${KERNELSRC_DIR}" "${R}/usr/src" | ||
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Jan Wagner
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r72 | |||
| # Clean the kernel sources | ||||
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Jan Wagner
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r75 | if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then | ||
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Jan Wagner
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r82 | make -C "${KERNELDIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper | ||
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Jan Wagner
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r72 | fi | ||
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Jan Wagner
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r75 | else # KERNELSRC_DIR="" | ||
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Jan Wagner
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r72 | # Fetch current raspberrypi kernel sources | ||
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Jan Wagner
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r82 | git -C "${R}/usr/src" clone --depth=1 https://github.com/raspberrypi/linux | ||
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Jan Wagner
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r72 | fi | ||
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Jan Wagner
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r67 | |||
| # Calculate optimal number of kernel building threads | ||||
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Jan Wagner
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r75 | if [ "$KERNEL_THREADS" = "1" ] && [ -r /proc/cpuinfo ] ; then | ||
| KERNEL_THREADS=$(grep -c processor /proc/cpuinfo) | ||||
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Jan Wagner
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r67 | fi | ||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r76 | # Configure and build kernel | ||
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Jan Wagner
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r75 | if [ "$KERNELSRC_PREBUILT" = false ] ; then | ||
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Jan Wagner
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r76 | # Remove device, network and filesystem drivers from kernel configuration | ||
| if [ "$KERNEL_REDUCE" = true ] ; then | ||||
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Jan Wagner
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r82 | make -C "${KERNELDIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}" | ||
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Jan Wagner
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r76 | 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/"\ | ||||
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Jan Wagner
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r82 | "${KERNELDIR}/.config" | ||
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Jan Wagner
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r76 | fi | ||
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Jan Wagner
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r75 | if [ "$KERNELSRC_CONFIG" = true ] ; then | ||
| # Load default raspberry kernel configuration | ||||
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Jan Wagner
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r82 | make -C "${KERNELDIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}" | ||
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Jan Wagner
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r72 | |||
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Jan Wagner
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r75 | # Start menu-driven kernel configuration (interactive) | ||
| if [ "$KERNEL_MENUCONFIG" = true ] ; then | ||||
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Jan Wagner
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r82 | make -C "${KERNELDIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig | ||
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Jan Wagner
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r75 | fi | ||
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Jan Wagner
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r72 | fi | ||
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Jan Wagner
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r71 | |||
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Jan Wagner
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r75 | # Cross compile kernel and modules | ||
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Jan Wagner
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r82 | make -C "${KERNELDIR}" -j${KERNEL_THREADS} ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" zImage modules dtbs | ||
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Jan Wagner
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r75 | fi | ||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r72 | # Check if kernel compilation was successful | ||
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Jan Wagner
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r82 | if [ ! -r "${KERNELDIR}/arch/${KERNEL_ARCH}/boot/zImage" ] ; then | ||
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Jan Wagner
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r75 | echo "error: kernel compilation failed! (zImage not found)" | ||
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Jan Wagner
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r72 | cleanup | ||
| exit 1 | ||||
| fi | ||||
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Filip Pytloun
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r56 | # Install kernel modules | ||
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Jan Wagner
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r73 | if [ "$ENABLE_REDUCE" = true ] ; then | ||
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Jan Wagner
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r82 | make -C "${KERNELDIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install | ||
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Jan Wagner
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r73 | else | ||
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Jan Wagner
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r82 | make -C "${KERNELDIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install | ||
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Jan Wagner
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r75 | |||
| # Install kernel firmware | ||||
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Jan Wagner
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r82 | make -C "${KERNELDIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install | ||
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Jan Wagner
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r73 | fi | ||
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Filip Pytloun
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r60 | |||
| # Install kernel headers | ||||
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Jan Wagner
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r76 | if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then | ||
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Jan Wagner
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r82 | make -C "${KERNELDIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install | ||
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Filip Pytloun
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r60 | fi | ||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r75 | # Prepare boot (firmware) directory | ||
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Jan Wagner
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r82 | mkdir "${BOOTDIR}" | ||
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Jan Wagner
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r75 | |||
| # Get kernel release version | ||||
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Jan Wagner
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r82 | KERNEL_VERSION=`cat "${KERNELDIR}/include/config/kernel.release"` | ||
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Jan Wagner
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r75 | |||
| # Copy kernel configuration file to the boot directory | ||||
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Jan Wagner
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r82 | install_readonly "${KERNELDIR}/.config" "${R}/boot/config-${KERNEL_VERSION}" | ||
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Jan Wagner
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r75 | |||
| # Copy dts and dtb device tree sources and binaries | ||||
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Jan Wagner
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r82 | mkdir "${BOOTDIR}/overlays" | ||
| install_readonly "${KERNELDIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb "${BOOTDIR}/" | ||||
| install_readonly "${KERNELDIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtb* "${BOOTDIR}/overlays/" | ||||
| install_readonly "${KERNELDIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOTDIR}/overlays/README" | ||||
| if [ "$ENABLE_UBOOT" = false ] ; then | ||||
| # Convert and copy zImage kernel to the boot directory | ||||
| "${KERNELDIR}/scripts/mkknlimg" "${KERNELDIR}/arch/${KERNEL_ARCH}/boot/zImage" "${BOOTDIR}/${KERNEL_IMAGE}" | ||||
| else | ||||
| # Copy zImage kernel to the boot directory | ||||
| install_readonly "${KERNELDIR}/arch/${KERNEL_ARCH}/boot/zImage" "${BOOTDIR}/${KERNEL_IMAGE}" | ||||
| fi | ||||
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Jan Wagner
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r67 | |||
| # Remove kernel sources | ||||
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Jan Wagner
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r75 | if [ "$KERNEL_REMOVESRC" = true ] ; then | ||
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Jan Wagner
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r82 | rm -fr "${KERNELDIR}" | ||
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Jan Wagner
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r67 | fi | ||
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Filip Pytloun
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r56 | |||
Stephen A. Brandli
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r83 | if [ -n "$FIRMWAREDIR" ] && [ -d "$FIRMWAREDIR" ] ; then | ||
| # Install boot binaries from local directory | ||||
| cp ${FIRMWAREDIR}/boot/bootcode.bin ${BOOTDIR}/bootcode.bin | ||||
| cp ${FIRMWAREDIR}/boot/fixup.dat ${BOOTDIR}/fixup.dat | ||||
| cp ${FIRMWAREDIR}/boot/fixup_cd.dat ${BOOTDIR}/fixup_cd.dat | ||||
| cp ${FIRMWAREDIR}/boot/fixup_x.dat ${BOOTDIR}/fixup_x.dat | ||||
| cp ${FIRMWAREDIR}/boot/start.elf ${BOOTDIR}/start.elf | ||||
| cp ${FIRMWAREDIR}/boot/start_cd.elf ${BOOTDIR}/start_cd.elf | ||||
| cp ${FIRMWAREDIR}/boot/start_x.elf ${BOOTDIR}/start_x.elf | ||||
| else | ||||
| # Install latest boot binaries from raspberry/firmware github | ||||
| wget -q -O "${BOOTDIR}/bootcode.bin" https://github.com/raspberrypi/firmware/raw/master/boot/bootcode.bin | ||||
| wget -q -O "${BOOTDIR}/fixup.dat" https://github.com/raspberrypi/firmware/raw/master/boot/fixup.dat | ||||
| wget -q -O "${BOOTDIR}/fixup_cd.dat" https://github.com/raspberrypi/firmware/raw/master/boot/fixup_cd.dat | ||||
| wget -q -O "${BOOTDIR}/fixup_x.dat" https://github.com/raspberrypi/firmware/raw/master/boot/fixup_x.dat | ||||
| wget -q -O "${BOOTDIR}/start.elf" https://github.com/raspberrypi/firmware/raw/master/boot/start.elf | ||||
| wget -q -O "${BOOTDIR}/start_cd.elf" https://github.com/raspberrypi/firmware/raw/master/boot/start_cd.elf | ||||
| wget -q -O "${BOOTDIR}/start_x.elf" https://github.com/raspberrypi/firmware/raw/master/boot/start_x.elf | ||||
| fi | ||||
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Jan Wagner
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r77 | |||
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Jan Wagner
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r70 | else # BUILD_KERNEL=false | ||
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Filip Pytloun
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r56 | # Kernel installation | ||
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Jan Wagner
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r75 | chroot_exec apt-get -qq -y --no-install-recommends install linux-image-"${COLLABORA_KERNEL}" raspberrypi-bootloader-nokernel | ||
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Filip Pytloun
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r56 | |||
| # Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot | ||||
| chroot_exec apt-get -qq -y install flash-kernel | ||||
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Jan Wagner
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r77 | # Check if kernel installation was successful | ||
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Jan Wagner
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r82 | VMLINUZ="$(ls -1 ${R}/boot/vmlinuz-* | sort | tail -n 1)" | ||
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Jan Wagner
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r77 | if [ -z "$VMLINUZ" ] ; then | ||
| echo "error: kernel installation failed! (/boot/vmlinuz-* not found)" | ||||
| cleanup | ||||
| exit 1 | ||||
| fi | ||||
| # Copy vmlinuz kernel to the boot directory | ||||
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Jan Wagner
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r82 | install_readonly "${VMLINUZ}" "${BOOTDIR}/${KERNEL_IMAGE}" | ||
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Filip Pytloun
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r56 | fi | ||
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Jan Wagner
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r71 | # Setup firmware boot cmdline | ||
Vincent Knecht
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r66 | if [ "$ENABLE_SPLITFS" = true ] ; then | ||
| CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda1 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait net.ifnames=1 console=tty1 ${CMDLINE}" | ||||
| else | ||||
| CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait net.ifnames=1 console=tty1 ${CMDLINE}" | ||||
| fi | ||||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r82 | # Add encrypted root partition to cmdline.txt | ||
| if [ "$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:${CRYPTFS_MAPPING}/") | ||||
| fi | ||||
| fi | ||||
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Jan Wagner
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r71 | # Add serial console support | ||
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Filip Pytloun
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r56 | if [ "$ENABLE_CONSOLE" = true ] ; then | ||
| CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200" | ||||
| fi | ||||
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Jan Wagner
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r71 | # Remove IPv6 networking support | ||
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Filip Pytloun
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r56 | if [ "$ENABLE_IPV6" = false ] ; then | ||
| CMDLINE="${CMDLINE} ipv6.disable=1" | ||||
| fi | ||||
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Jan Wagner
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r71 | # Install firmware boot cmdline | ||
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Jan Wagner
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r82 | echo "${CMDLINE}" > "${BOOTDIR}/cmdline.txt" | ||
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Jan Wagner
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r77 | |||
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Jan Wagner
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r71 | # Install firmware config | ||
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Jan Wagner
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r82 | install_readonly files/boot/config.txt "${BOOTDIR}/config.txt" | ||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r71 | # Setup minimal GPU memory allocation size: 16MB (no X) | ||
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Filip Pytloun
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r56 | if [ "$ENABLE_MINGPU" = true ] ; then | ||
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Jan Wagner
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r82 | echo "gpu_mem=16" >> "${BOOTDIR}/config.txt" | ||
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Filip Pytloun
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r56 | fi | ||
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Jan Wagner
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r77 | # Setup boot with initramfs | ||
| if [ "$ENABLE_INITRAMFS" = true ] ; then | ||||
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Jan Wagner
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r82 | echo "initramfs initramfs-${KERNEL_VERSION} followkernel" >> "${BOOTDIR}/config.txt" | ||
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Jan Wagner
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r77 | fi | ||
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Jan Wagner
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r71 | # Create firmware configuration and cmdline symlinks | ||
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Jan Wagner
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r82 | ln -sf firmware/config.txt "${R}/boot/config.txt" | ||
| ln -sf firmware/cmdline.txt "${R}/boot/cmdline.txt" | ||||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r71 | # Install and setup kernel modules to load at boot | ||
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Jan Wagner
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r82 | mkdir -p "${R}/lib/modules-load.d/" | ||
| install_readonly files/modules/rpi2.conf "${R}/lib/modules-load.d/rpi2.conf" | ||||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r71 | # Load hardware random module at boot | ||
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Jan Wagner
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r82 | if [ "$ENABLE_HWRANDOM" = true ] && [ "$BUILD_KERNEL" = false ] ; then | ||
| sed -i "s/^# bcm2708_rng/bcm2708_rng/" "${R}/lib/modules-load.d/rpi2.conf" | ||||
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Filip Pytloun
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r56 | fi | ||
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Jan Wagner
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r71 | # Load sound module at boot | ||
| if [ "$ENABLE_SOUND" = true ] ; then | ||||
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Jan Wagner
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r82 | sed -i "s/^# snd_bcm2835/snd_bcm2835/" "${R}/lib/modules-load.d/rpi2.conf" | ||
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Jan Wagner
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r71 | fi | ||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r71 | # Install kernel modules blacklist | ||
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Jan Wagner
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r82 | mkdir -p "${ETCDIR}/modprobe.d/" | ||
| install_readonly files/modules/raspi-blacklist.conf "${ETCDIR}/modprobe.d/raspi-blacklist.conf" | ||||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r71 | # Install and setup fstab | ||
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Jan Wagner
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r82 | install_readonly files/mount/fstab "${ETCDIR}/fstab" | ||
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Jan Wagner
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r77 | |||
| # Add usb/sda disk root partition to fstab | ||||
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Jan Wagner
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r82 | if [ "$ENABLE_SPLITFS" = true ] && [ "$ENABLE_CRYPTFS" = false ] ; then | ||
| sed -i "s/mmcblk0p2/sda1/" "${ETCDIR}/fstab" | ||||
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Jan Wagner
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r77 | fi | ||
| # Add encrypted root partition to fstab and crypttab | ||||
| if [ "$ENABLE_CRYPTFS" = true ] ; then | ||||
| # Replace fstab root partition with encrypted partition mapping | ||||
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Jan Wagner
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r82 | sed -i "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING}/" "${ETCDIR}/fstab" | ||
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Jan Wagner
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r77 | |||
| # Add encrypted partition to crypttab and fstab | ||||
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Jan Wagner
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r82 | install_readonly files/mount/crypttab "${ETCDIR}/crypttab" | ||
| echo "${CRYPTFS_MAPPING} /dev/mmcblk0p2 none luks" >> "${ETCDIR}/crypttab" | ||||
| if [ "$ENABLE_SPLITFS" = true ] ; then | ||||
| # Add usb/sda disk to crypttab | ||||
| sed -i "s/mmcblk0p2/sda1/" "${ETCDIR}/crypttab" | ||||
| fi | ||||
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Jan Wagner
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r77 | fi | ||
| # Generate initramfs file | ||||
| if [ "$ENABLE_INITRAMFS" = true ] ; then | ||||
| if [ "$ENABLE_CRYPTFS" = true ] ; then | ||||
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Jan Wagner
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r82 | # Include initramfs scripts to auto expand encrypted root partition | ||
| if [ "$EXPANDROOT" = true ] ; then | ||||
| install_exec files/initramfs/expand_encrypted_rootfs "${ETCDIR}/initramfs-tools/scripts/init-premount/expand_encrypted_rootfs" | ||||
| install_exec files/initramfs/expand-premount "${ETCDIR}/initramfs-tools/scripts/local-premount/expand-premount" | ||||
| install_exec files/initramfs/expand-tools "${ETCDIR}/initramfs-tools/hooks/expand-tools" | ||||
| fi | ||||
| # Disable SSHD inside initramfs | ||||
| printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETCDIR}/initramfs-tools/initramfs.conf" | ||||
|
Jan Wagner
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r77 | # 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}" "${KERNEL_VERSION}" | ||||
| fi | ||||
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Vincent Knecht
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r66 | fi | ||
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Filip Pytloun
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r56 | |||
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Jan Wagner
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r71 | # Install sysctl.d configuration files | ||
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Jan Wagner
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r82 | install_readonly files/sysctl.d/81-rpi-vm.conf "${ETCDIR}/sysctl.d/81-rpi-vm.conf" | ||
