# # Build and Setup RPi2/3 Kernel # # Load utility functions . ./functions.sh # Need to use kali kernel src if nexmon is enabled if [ "$ENABLE_NEXMON" = true ] ; then echo "WARNING: if ENABLE_NEXMON is used remember to put the CORRECT KERNELSRC IN KERNELSRC_DIR!!!!!1!" KERNEL_URL="${KALI_KERNEL_URL}" KERNEL_BRANCH="" fi # Fetch and build latest raspberry kernel if [ "$BUILD_KERNEL" = true ] ; then # Setup source directory mkdir -p "${KERNEL_DIR}" # Copy existing kernel sources into chroot directory if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then # Copy kernel sources and include hidden files cp -r "${KERNELSRC_DIR}/". "${KERNEL_DIR}" # Clean the kernel sources if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper fi else # KERNELSRC_DIR="" # Create temporary directory for kernel sources temp_dir=$(as_nobody mktemp -d) # Fetch current RPi2/3 kernel sources if [ -z "${KERNEL_BRANCH}" ] ; then as_nobody -H git -C "${temp_dir}" clone --depth=1 "${KERNEL_URL}" linux else as_nobody -H git -C "${temp_dir}" clone --depth=1 --branch "${KERNEL_BRANCH}" "${KERNEL_URL}" linux fi # Copy downloaded kernel sources cp -r "${temp_dir}/linux/"* "${KERNEL_DIR}" # Remove temporary directory for kernel sources rm -fr "${temp_dir}" # Set permissions of the kernel sources chown -R root:root "${R}/usr/src" 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}" #Switch to KERNELSRC_DIR so we can use set_kernel_config cd "${KERNEL_DIR}" || exit # enable ZSWAP see https://askubuntu.com/a/472227 or https://wiki.archlinux.org/index.php/zswap if [ "$KERNEL_ZSWAP" = true ] ; then set_kernel_config CONFIG_ZPOOL y set_kernel_config CONFIG_ZSWAP y set_kernel_config CONFIG_ZBUD y set_kernel_config CONFIG_Z3FOLD y set_kernel_config CONFIG_ZSMALLOC y set_kernel_config CONFIG_PGTABLE_MAPPING y fi # enable basic KVM support; see https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=210546&start=25#p1300453 if [ "$KERNEL_VIRT" = true ] && { [ "$RPI_MODEL" = 2 ] || [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; } ; then set_kernel_config CONFIG_VIRTUALIZATION y set_kernel_config CONFIG_KVM y set_kernel_config CONFIG_VHOST_NET m set_kernel_config CONFIG_VHOST_CROSS_ENDIAN_LEGACY y fi # enable apparmor,integrity audit, if [ "$KERNEL_SECURITY" = true ] ; then # security filesystem, security models and audit set_kernel_config CONFIG_SECURITYFS y set_kernel_config CONFIG_SECURITY y set_kernel_config CONFIG_AUDIT y # harden strcpy and memcpy set_kernel_config CONFIG_HARDENED_USERCOPY=y set_kernel_config CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y set_kernel_config CONFIG_FORTIFY_SOURCE=y # integrity sub-system set_kernel_config CONFIG_INTEGRITY=y set_kernel_config CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y set_kernel_config CONFIG_INTEGRITY_AUDIT=y set_kernel_config CONFIG_INTEGRITY_SIGNATURE=y set_kernel_config CONFIG_INTEGRITY_TRUSTED_KEYRING=y # This option provides support for retaining authentication tokens and access keys in the kernel. set_kernel_config CONFIG_KEYS=y set_kernel_config CONFIG_KEYS_COMPAT=y # Apparmor set_kernel_config CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE 0 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH_DEFAULT y set_kernel_config CONFIG_DEFAULT_SECURITY_APPARMOR y set_kernel_config CONFIG_SECURITY_APPARMOR y set_kernel_config CONFIG_SECURITY_APPARMOR_HASH y set_kernel_config CONFIG_DEFAULT_SECURITY "apparmor" # restrictions on unprivileged users reading the kernel set_kernel_config CONFIG_SECURITY_DMESG_RESTRICT=y # network security hooks set_kernel_config CONFIG_SECURITY_NETWORK y set_kernel_config CONFIG_SECURITY_NETWORK_XFRM=y set_kernel_config CONFIG_SECURITY_PATH=y set_kernel_config CONFIG_SECURITY_YAMA=y # New Options if [ "$KERNEL_NF" = true ] ; then set_kernel_config CONFIG_IP_NF_SECURITY m set_kernel_config CONFIG_NETLABEL m set_kernel_config CONFIG_IP6_NF_SECURITY m fi set_kernel_config CONFIG_SECURITY_SELINUX n set_kernel_config CONFIG_SECURITY_SMACK n set_kernel_config CONFIG_SECURITY_TOMOYO n set_kernel_config CONFIG_SECURITY_APPARMOR_DEBUG n set_kernel_config CONFIG_SECURITY_LOADPIN n set_kernel_config CONFIG_HARDENED_USERCOPY_PAGESPAN n set_kernel_config CONFIG_IMA n set_kernel_config CONFIG_EVM n set_kernel_config CONFIG_FANOTIFY_ACCESS_PERMISSIONS y set_kernel_config CONFIG_NFSD_V4_SECURITY_LABEL y set_kernel_config CONFIG_PKCS7_MESSAGE_PARSER y set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYRING y set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS y set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE y set_kernel_config CONFIG_SECONDARY_TRUSTED_KEYRING y set_kernel_config CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY n set_kernel_config CONFIG_ARM64_CRYPTO y set_kernel_config CONFIG_CRYPTO_SHA256_ARM64 m set_kernel_config CONFIG_CRYPTO_SHA512_ARM64 m set_kernel_config CONFIG_CRYPTO_SHA1_ARM64_CE m set_kernel_config CRYPTO_GHASH_ARM64_CE m set_kernel_config CRYPTO_SHA2_ARM64_CE m set_kernel_config CONFIG_CRYPTO_CRCT10DIF_ARM64_CE m set_kernel_config CONFIG_CRYPTO_CRC32_ARM64_CE m set_kernel_config CONFIG_CRYPTO_AES_ARM64 m set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE m set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_CCM y set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_BLK y set_kernel_config CONFIG_CRYPTO_AES_ARM64_NEON_BLK m set_kernel_config CONFIG_CRYPTO_CHACHA20_NEON m set_kernel_config CONFIG_CRYPTO_AES_ARM64_BS m fi # Netfilter kernel support See https://github.com/raspberrypi/linux/issues/2177#issuecomment-354647406 if [ "$KERNEL_NF" = true ] ; then set_kernel_config CONFIG_IP_NF_TARGET_SYNPROXY m set_kernel_config CONFIG_NETFILTER_XT_TARGET_AUDIT m set_kernel_config CONFIG_NETFILTER_XT_MATCH_CGROUP m set_kernel_config CONFIG_NETFILTER_XT_MATCH_IPCOMP m set_kernel_config CONFIG_NETFILTER_XT_MATCH_SOCKET m set_kernel_config CONFIG_NFT_FIB_INET m set_kernel_config CONFIG_NFT_FIB_IPV4 m set_kernel_config CONFIG_NFT_FIB_IPV6 m set_kernel_config CONFIG_NFT_FIB_NETDEV m set_kernel_config CONFIG_NFT_OBJREF m set_kernel_config CONFIG_NFT_RT m set_kernel_config CONFIG_NFT_SET_BITMAP m set_kernel_config CONFIG_NF_CONNTRACK_TIMEOUT y set_kernel_config CONFIG_NF_LOG_ARP m set_kernel_config CONFIG_NF_SOCKET_IPV4 m set_kernel_config CONFIG_NF_SOCKET_IPV6 m set_kernel_config CONFIG_BRIDGE_EBT_BROUTE m set_kernel_config CONFIG_BRIDGE_EBT_T_FILTER m set_kernel_config CONFIG_BRIDGE_NF_EBTABLES m set_kernel_config CONFIG_IP6_NF_IPTABLES m set_kernel_config CONFIG_IP6_NF_MATCH_AH m set_kernel_config CONFIG_IP6_NF_MATCH_EUI64 m set_kernel_config CONFIG_IP6_NF_NAT m set_kernel_config CONFIG_IP6_NF_TARGET_MASQUERADE m set_kernel_config CONFIG_IP6_NF_TARGET_NPT m set_kernel_config CONFIG_IP_NF_SECURITY m set_kernel_config CONFIG_IP_SET_BITMAP_IPMAC m set_kernel_config CONFIG_IP_SET_BITMAP_PORT m set_kernel_config CONFIG_IP_SET_HASH_IP m set_kernel_config CONFIG_IP_SET_HASH_IPMARK m set_kernel_config CONFIG_IP_SET_HASH_IPPORT m set_kernel_config CONFIG_IP_SET_HASH_IPPORTIP m set_kernel_config CONFIG_IP_SET_HASH_IPPORTNET m set_kernel_config CONFIG_IP_SET_HASH_MAC m set_kernel_config CONFIG_IP_SET_HASH_NET m set_kernel_config CONFIG_IP_SET_HASH_NETIFACE m set_kernel_config CONFIG_IP_SET_HASH_NETNET m set_kernel_config CONFIG_IP_SET_HASH_NETPORT m set_kernel_config CONFIG_IP_SET_HASH_NETPORTNET m set_kernel_config CONFIG_IP_SET_LIST_SET m set_kernel_config CONFIG_NETFILTER_XTABLES m set_kernel_config CONFIG_NETFILTER_XTABLES m set_kernel_config CONFIG_NFT_BRIDGE_META m set_kernel_config CONFIG_NFT_BRIDGE_REJECT m set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV4 m set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV6 m set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV4 m set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV6 m set_kernel_config CONFIG_NFT_COMPAT m set_kernel_config CONFIG_NFT_COUNTER m set_kernel_config CONFIG_NFT_CT m set_kernel_config CONFIG_NFT_DUP_IPV4 m set_kernel_config CONFIG_NFT_DUP_IPV6 m set_kernel_config CONFIG_NFT_DUP_NETDEV m set_kernel_config CONFIG_NFT_EXTHDR m set_kernel_config CONFIG_NFT_FWD_NETDEV m set_kernel_config CONFIG_NFT_HASH m set_kernel_config CONFIG_NFT_LIMIT m set_kernel_config CONFIG_NFT_LOG m set_kernel_config CONFIG_NFT_MASQ m set_kernel_config CONFIG_NFT_MASQ_IPV4 m set_kernel_config CONFIG_NFT_MASQ_IPV6 m set_kernel_config CONFIG_NFT_META m set_kernel_config CONFIG_NFT_NAT m set_kernel_config CONFIG_NFT_NUMGEN m set_kernel_config CONFIG_NFT_QUEUE m set_kernel_config CONFIG_NFT_QUOTA m set_kernel_config CONFIG_NFT_REDIR m set_kernel_config CONFIG_NFT_REDIR_IPV4 m set_kernel_config CONFIG_NFT_REDIR_IPV6 m set_kernel_config CONFIG_NFT_REJECT m set_kernel_config CONFIG_NFT_REJECT_INET m set_kernel_config CONFIG_NFT_REJECT_IPV4 m set_kernel_config CONFIG_NFT_REJECT_IPV6 m set_kernel_config CONFIG_NFT_SET_HASH m set_kernel_config CONFIG_NFT_SET_RBTREE m set_kernel_config CONFIG_NF_CONNTRACK_IPV4 m set_kernel_config CONFIG_NF_CONNTRACK_IPV6 m set_kernel_config CONFIG_NF_DEFRAG_IPV4 m set_kernel_config CONFIG_NF_DEFRAG_IPV6 m set_kernel_config CONFIG_NF_DUP_IPV4 m set_kernel_config CONFIG_NF_DUP_IPV6 m set_kernel_config CONFIG_NF_DUP_NETDEV m set_kernel_config CONFIG_NF_LOG_BRIDGE m set_kernel_config CONFIG_NF_LOG_IPV4 m set_kernel_config CONFIG_NF_LOG_IPV6 m set_kernel_config CONFIG_NF_NAT_IPV4 m set_kernel_config CONFIG_NF_NAT_IPV6 m set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV4 m set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV6 m set_kernel_config CONFIG_NF_NAT_PPTP m set_kernel_config CONFIG_NF_NAT_PROTO_GRE m set_kernel_config CONFIG_NF_NAT_REDIRECT m set_kernel_config CONFIG_NF_NAT_SIP m set_kernel_config CONFIG_NF_NAT_SNMP_BASIC m set_kernel_config CONFIG_NF_NAT_TFTP m set_kernel_config CONFIG_NF_REJECT_IPV4 m set_kernel_config CONFIG_NF_REJECT_IPV6 m set_kernel_config CONFIG_NF_TABLES m set_kernel_config CONFIG_NF_TABLES_ARP m set_kernel_config CONFIG_NF_TABLES_BRIDGE m set_kernel_config CONFIG_NF_TABLES_INET m set_kernel_config CONFIG_NF_TABLES_IPV4 m set_kernel_config CONFIG_NF_TABLES_IPV6 m set_kernel_config CONFIG_NF_TABLES_NETDEV m fi # Enables BPF syscall for systemd-journald see https://github.com/torvalds/linux/blob/master/init/Kconfig#L848 or https://groups.google.com/forum/#!topic/linux.gentoo.user/_2aSc_ztGpA if [ "$KERNEL_BPF" = true ] ; then set_kernel_config CONFIG_BPF_SYSCALL y set_kernel_config CONFIG_BPF_EVENTS y set_kernel_config CONFIG_BPF_STREAM_PARSER y set_kernel_config CONFIG_CGROUP_BPF y fi # KERNEL_DEFAULT_GOV was set by user if [ "$KERNEL_DEFAULT_GOV" != powersave ] && [ -n "$KERNEL_DEFAULT_GOV" ] ; then case "$KERNEL_DEFAULT_GOV" in performance) set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE y ;; userspace) set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE y ;; ondemand) set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND y ;; conservative) set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE y ;; shedutil) set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL y ;; *) echo "error: unsupported default cpu governor" exit 1 ;; esac # unset previous default governor unset_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE fi #Revert to previous directory cd "${WORKDIR}" || exit # Set kernel configuration parameters to enable qemu emulation if [ "$ENABLE_QEMU" = true ] ; then echo "CONFIG_FHANDLE=y" >> "${KERNEL_DIR}"/.config echo "CONFIG_LBDAF=y" >> "${KERNEL_DIR}"/.config if [ "$ENABLE_CRYPTFS" = true ] ; then { echo "CONFIG_EMBEDDED=y" echo "CONFIG_EXPERT=y" echo "CONFIG_DAX=y" echo "CONFIG_MD=y" echo "CONFIG_BLK_DEV_MD=y" echo "CONFIG_MD_AUTODETECT=y" echo "CONFIG_BLK_DEV_DM=y" echo "CONFIG_BLK_DEV_DM_BUILTIN=y" echo "CONFIG_DM_CRYPT=y" echo "CONFIG_CRYPTO_BLKCIPHER=y" echo "CONFIG_CRYPTO_CBC=y" echo "CONFIG_CRYPTO_XTS=y" echo "CONFIG_CRYPTO_SHA512=y" echo "CONFIG_CRYPTO_MANAGER=y" } >> "${KERNEL_DIR}"/.config fi fi # Copy custom kernel configuration file if [ -n "$KERNELSRC_USRCONFIG" ] ; then cp "$KERNELSRC_USRCONFIG" "${KERNEL_DIR}"/.config fi # Set kernel configuration parameters to their default values if [ "$KERNEL_OLDDEFCONFIG" = true ] ; then make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" olddefconfig 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 # end if "$KERNELSRC_CONFIG" = true fi # Use ccache to cross compile the kernel if [ "$KERNEL_CCACHE" = true ] ; then cc="ccache ${CROSS_COMPILE}gcc" else cc="${CROSS_COMPILE}gcc" fi # Cross compile kernel and dtbs make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" "${KERNEL_BIN_IMAGE}" dtbs # Cross compile kernel modules if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" modules fi # end if "$KERNELSRC_PREBUILT" = false fi # Check if kernel compilation was successful if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" ] ; then echo "error: kernel compilation failed! (kernel image not found)" cleanup exit 1 fi # Install kernel modules if [ "$ENABLE_REDUCE" = true ] ; then if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install fi else if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install fi # Install kernel firmware if grep -q "^firmware_install:" "${KERNEL_DIR}/Makefile" ; then make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install fi fi # Install kernel headers if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install fi # make tar.gz kernel package - missing os bzw. modules #** ** ** WARNING ** ** ** #Your architecture did not define any architecture-dependent files #to be placed into the tarball. Please add those to ./scripts/package/buildtar . # make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" targz-pkg # 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}" # Prepare device tree directory mkdir "${BOOT_DIR}/overlays" # Ensure the proper .dtb is located if [ "$KERNEL_ARCH" = "arm" ] ; then for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb ; do if [ -f "${dtb}" ] ; then install_readonly "${dtb}" "${BOOT_DIR}/" fi done else for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/broadcom/"*.dtb ; do if [ -f "${dtb}" ] ; then install_readonly "${dtb}" "${BOOT_DIR}/" fi done fi # Copy compiled dtb device tree files if [ -d "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays" ] ; then for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtb ; do if [ -f "${dtb}" ] ; then install_readonly "${dtb}" "${BOOT_DIR}/overlays/" fi done if [ -f "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" ] ; then install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README" fi fi if [ "$ENABLE_UBOOT" = false ] ; then # Convert and copy kernel image to the boot directory "${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}" else # Copy kernel image to the boot directory install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}" fi # Remove kernel sources if [ "$KERNEL_REMOVESRC" = true ] ; then rm -fr "${KERNEL_DIR}" else # Prepare compiled kernel modules if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then if grep -q "^modules_prepare:" "${KERNEL_DIR}/Makefile" ; then make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare fi # Create symlinks for kernel modules chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/build" chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/source" fi fi else # BUILD_KERNEL=false # echo Install precompiled kernel... # echo error: not implemented if [ "$SET_ARCH" = 64 ] && { [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; } ; then # Use Sakakis modified kernel if ZSWAP is active if [ "$KERNEL_ZSWAP" = true ] || [ "$KERNEL_VIRT" = true ] || [ "$KERNEL_NF" = true ] || [ "$KERNEL_BPF" = true ] ; then RPI3_64_KERNEL_URL="${RPI3_64_BIS_KERNEL_URL}" fi # Create temporary directory for dl temp_dir=$(as_nobody mktemp -d) # Fetch kernel dl as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI3_64_KERNEL_URL" #extract download tar -xJf "${temp_dir}"/kernel.tar.xz -C "${temp_dir}" #move extracted kernel to /boot/firmware mkdir "${R}/boot/firmware" cp "${temp_dir}"/boot/* "${R}"/boot/firmware/ cp -r "${temp_dir}"/lib/* "${R}"/lib/ # Remove temporary directory for kernel sources rm -fr "${temp_dir}" # Set permissions of the kernel sources chown -R root:root "${R}/boot/firmware" chown -R root:root "${R}/lib/modules" fi # Install Kernel from hypriot comptabile with all Raspberry PI if [ "$SET_ARCH" = 32 ] ; then # Create temporary directory for dl temp_dir=$(as_nobody mktemp -d) # Fetch kernel as_nobody wget -O "${temp_dir}"/kernel.deb -c "$RPI_32_KERNEL_URL" # Copy downloaded U-Boot sources mv "${temp_dir}"/kernel.deb "${R}"/tmp/kernel.deb # Set permissions chown -R root:root "${R}"/tmp/kernel.deb # Install kernel chroot_exec dpkg -i /tmp/kernel.deb # move /boot to /boot/firmware to fit script env. #mkdir "${BOOT_DIR}" mkdir "${temp_dir}"/firmware mv "${R}"/boot/* "${temp_dir}"/firmware/ mv "${temp_dir}"/firmware "${R}"/boot/ #same for kernel headers if [ "$KERNEL_HEADERS" = true ] ; then # Fetch kernel header as_nobody wget -O "${temp_dir}"/kernel-header.deb -c "$RPI_32_KERNELHEADER_URL" mv "${temp_dir}"/kernel-header.deb "${R}"/tmp/kernel-header.deb chown -R root:root "${R}"/tmp/kernel-header.deb # Install kernel header chroot_exec dpkg -i /tmp/kernel-header.deb rm -f "${R}"/tmp/kernel-header.deb fi # Remove temporary directory and files rm -fr "${temp_dir}" rm -f "${R}"/tmp/kernel.deb fi # Check if kernel installation was successful KERNEL="$(ls -1 "${R}"/boot/firmware/kernel* | sort | tail -n 1)" if [ -z "$KERNEL" ] ; then echo "error: kernel installation failed! (/boot/kernel* not found)" cleanup exit 1 fi fi