diff options
Diffstat (limited to 'bootstrap.d/13-kernel.sh')
| -rw-r--r-- | bootstrap.d/13-kernel.sh | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/bootstrap.d/13-kernel.sh b/bootstrap.d/13-kernel.sh index 0ca889c..87a33b7 100644 --- a/bootstrap.d/13-kernel.sh +++ b/bootstrap.d/13-kernel.sh @@ -1,43 +1,56 @@ # -# Kernel installation +# Build and Setup RPi2 Kernel # +# Load utility functions . ./functions.sh # Fetch and build latest raspberry kernel if [ "$BUILD_KERNEL" = true ] ; then # Fetch current raspberrypi kernel sources - git -C $R/usr/local/src clone --depth=1 https://github.com/raspberrypi/linux + git -C $R/usr/src clone --depth=1 https://github.com/raspberrypi/linux # Load default raspberry kernel configuration - make -C $R/usr/local/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2709_defconfig + make -C $R/usr/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2709_defconfig + + # Calculate optimal number of kernel building threads + if [ "KERNEL_THREADS" = 1 ] ; then + if [ -f /proc/cpuinfo ] ; then + KERNEL_THREADS=$(grep -c processor /proc/cpuinfo) + fi + fi # Cross compile kernel and modules - make -C $R/usr/local/src/linux -j$(grep -c processor /proc/cpuinfo) ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage modules dtbs + make -C $R/usr/src/linux -j${KERNEL_THREADS} ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage modules dtbs # Install kernel modules - make -C $R/usr/local/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_MOD_PATH=../.. modules_install + make -C $R/usr/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_MOD_PATH=../../.. modules_install # Install kernel headers if [ "$KERNEL_HEADERS" = true ]; then - make -C $R/usr/local/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_HDR_PATH=../../usr headers_install + make -C $R/usr/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_HDR_PATH=../.. headers_install fi # Copy and rename compiled kernel to boot directory mkdir $R/boot/firmware/ - $R/usr/local/src/linux/scripts/mkknlimg $R/usr/local/src/linux/arch/arm/boot/zImage $R/boot/firmware/kernel7.img + $R/usr/src/linux/scripts/mkknlimg $R/usr/src/linux/arch/arm/boot/zImage $R/boot/firmware/kernel7.img # Copy dts and dtb device definitions mkdir $R/boot/firmware/overlays/ - cp $R/usr/local/src/linux/arch/arm/boot/dts/*.dtb $R/boot/firmware/ - cp $R/usr/local/src/linux/arch/arm/boot/dts/overlays/*.dtb* $R/boot/firmware/overlays/ - cp $R/usr/local/src/linux/arch/arm/boot/dts/overlays/README $R/boot/firmware/overlays/ + cp $R/usr/src/linux/arch/arm/boot/dts/*.dtb $R/boot/firmware/ + cp $R/usr/src/linux/arch/arm/boot/dts/overlays/*.dtb* $R/boot/firmware/overlays/ + cp $R/usr/src/linux/arch/arm/boot/dts/overlays/README $R/boot/firmware/overlays/ + + # Remove kernel sources + if [ "$KERNEL_RMSRC" = true ]; then + rm -fr $R/usr/src/linux + fi # Install raspberry bootloader and flash-kernel chroot_exec apt-get -qq -y --no-install-recommends install raspberrypi-bootloader-nokernel else # Kernel installation - chroot_exec apt-get -qq -y --no-install-recommends install linux-image-${KERNEL} raspberrypi-bootloader-nokernel + chroot_exec apt-get -qq -y --no-install-recommends install linux-image-${COLLABORA_KERNEL} raspberrypi-bootloader-nokernel # Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot chroot_exec apt-get -qq -y install flash-kernel @@ -63,7 +76,7 @@ fi echo "${CMDLINE}" >$R/boot/firmware/cmdline.txt # Set up firmware config -install -o root -g root -m 644 files/config.txt $R/boot/firmware/config.txt +install_readonly files/boot/config.txt $R/boot/firmware/config.txt # Load snd_bcm2835 kernel module at boot time if [ "$ENABLE_SOUND" = true ] ; then @@ -93,10 +106,10 @@ fi mkdir -p $R/etc/modprobe.d/ # Blacklist sound modules -install -o root -g root -m 644 files/modprobe.d/raspi-blacklist.conf $R/etc/modprobe.d/raspi-blacklist.conf +install_readonly files/modprobe.d/raspi-blacklist.conf $R/etc/modprobe.d/raspi-blacklist.conf # Create default fstab -install -o root -g root -m 644 files/fstab $R/etc/fstab +install_readonly files/mount/fstab $R/etc/fstab # Avoid swapping and increase cache sizes -install -o root -g root -m 644 files/sysctl.d/81-rpi-vm.conf $R/etc/sysctl.d/81-rpi-vm.conf +install_readonly files/sysctl.d/81-rpi-vm.conf $R/etc/sysctl.d/81-rpi-vm.conf |