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Added choice to enable v3d graphics accelerator for Pi4...
Added choice to enable v3d graphics accelerator for Pi4 if true excludes fbturbo for pi4 fbturbo is faulty

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13-kernel.sh
885 lines | 36.4 KiB | application/x-sh | BashLexer
#
# Build and Setup RPi2/3/4 Kernel 4.XX 5.XX
#
# Load utility functions
. ./functions.sh
# Need to use kali kernel src if nexmon is enabled
if [ "$ENABLE_NEXMON" = true ] ; then
KERNEL_URL="${KALI_KERNEL_URL}"
# Clear Branch and KernelSRC_DIR if using nexmon. Everyone will forget to clone kali kernel instead of nomrla kernel
KERNEL_BRANCH=""
KERNELSRC_DIR=""
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 [ -n "$KERNEL_THREADS" ] && [ -r /proc/cpuinfo ] ; then
KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)
fi
# TODO: Check if defined Threadcount is higher than actual cores
# if [ "$KERNEL_THREADS" > grep -c processor /proc/cpuinfo] ; then
# echo "Defined more Threads than core assigned to this system"
# exit 1
# fi
#Copy 32bit config to 64bit
if [ "$ENABLE_QEMU" = true ] && [ "$KERNEL_ARCH" = arm64 ]; then
cp "${KERNEL_DIR}"/arch/arm/configs/vexpress_defconfig "${KERNEL_DIR}"/arch/arm64/configs/
fi
# Configure and build kernel
if [ "$KERNELSRC_PREBUILT" = false ] ; then
# Remove device, network and filesystem drivers from kernel configuration
if [ "$REDUCE_KERNEL" = true ] ; then
make -C "${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 "${KERNEL_DIR}" || exit
# Enable RPI POE HAT fan
if [ "$KERNEL_POEHAT" = true ]; then
set_kernel_config CONFIG_SENSORS_RPI_POE_FAN m
fi
# Enable per-interface network priority control
# (for systemd-nspawn)
if [ "$KERNEL_NSPAN" = true ]; then
set_kernel_config CONFIG_CGROUP_NET_PRIO y
fi
# Compile in BTRFS
if [ "$KERNEL_BTRFS" = true ]; then
set_kernel_config CONFIG_BTRFS_FS y
set_kernel_config CONFIG_BTRFS_FS_POSIX_ACL y
set_kernel_config CONFIG_BTRFS_FS_REF_VERIFY y
fi
# Diffie-Hellman operations on retained keys
# (required for >keyutils-1.6)
if [ "$KERNEL_DHKEY" = true ]; then
set_kernel_config CONFIG_KEY_DH_OPERATIONS y
fi
if [ "$KERNEL_ARCH" = arm64 ] && [ "$ENABLE_QEMU" = false ]; then
# Mask this temporarily during switch to rpi-4.19.y
#Fix SD_DRIVER upstream and downstream mess in 64bit RPIdeb_config
# use correct driver MMC_BCM2835_MMC instead of MMC_BCM2835_SDHOST - see https://www.raspberrypi.org/forums/viewtopic.php?t=210225
#set_kernel_config CONFIG_MMC_BCM2835 n
#set_kernel_config CONFIG_MMC_SDHCI_IPROC n
#set_kernel_config CONFIG_USB_DWC2 n
#sed -i "s|depends on MMC_BCM2835_MMC && MMC_BCM2835_DMA|depends on MMC_BCM2835_MMC|" "${KERNEL_DIR}"/drivers/mmc/host/Kconfig
#VLAN got disabled without reason in arm64bit
set_kernel_config CONFIG_IPVLAN m
fi
# enable ZSWAP see https://askubuntu.com/a/472227 or https://wiki.archlinux.org/index.php/zswap
if [ "$KERNEL_ZSWAP" = true ] ; then
set_kernel_config CONFIG_ZPOOL y
set_kernel_config CONFIG_ZSWAP y
set_kernel_config CONFIG_ZBUD y
set_kernel_config CONFIG_Z3FOLD y
set_kernel_config CONFIG_ZSMALLOC y
set_kernel_config CONFIG_PGTABLE_MAPPING y
set_kernel_config CONFIG_LZO_COMPRESS y
fi
if [ "$RPI_MODEL" = 4 ] ; then
# Following are set in current 32-bit LPAE kernel
set_kernel_config CONFIG_CGROUP_PIDS y
set_kernel_config CONFIG_NET_IPVTI m
set_kernel_config CONFIG_NF_TABLES_SET m
set_kernel_config CONFIG_NF_TABLES_INET y
set_kernel_config CONFIG_NF_TABLES_NETDEV y
set_kernel_config CONFIG_NF_FLOW_TABLE m
set_kernel_config CONFIG_NFT_FLOW_OFFLOAD m
set_kernel_config CONFIG_NFT_CONNLIMIT m
set_kernel_config CONFIG_NFT_TUNNEL m
set_kernel_config CONFIG_NFT_OBJREF m
set_kernel_config CONFIG_NFT_FIB_IPV4 m
set_kernel_config CONFIG_NFT_FIB_IPV6 m
set_kernel_config CONFIG_NFT_FIB_INET m
set_kernel_config CONFIG_NFT_SOCKET m
set_kernel_config CONFIG_NFT_OSF m
set_kernel_config CONFIG_NFT_TPROXY m
set_kernel_config CONFIG_NF_DUP_NETDEV m
set_kernel_config CONFIG_NFT_DUP_NETDEV m
set_kernel_config CONFIG_NFT_FWD_NETDEV m
set_kernel_config CONFIG_NFT_FIB_NETDEV m
set_kernel_config CONFIG_NF_FLOW_TABLE_INET m
set_kernel_config CONFIG_NF_FLOW_TABLE m
set_kernel_config CONFIG_NETFILTER_XT_MATCH_SOCKET m
set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV6 m
set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV6 m
set_kernel_config CONFIG_NFT_MASQ_IPV6 m
set_kernel_config CONFIG_NFT_REDIR_IPV6 m
set_kernel_config CONFIG_NFT_REJECT_IPV6 m
set_kernel_config CONFIG_NFT_DUP_IPV6 m
set_kernel_config CONFIG_NFT_FIB_IPV6 m
set_kernel_config CONFIG_NF_FLOW_TABLE_IPV6 m
set_kernel_config CONFIG_NF_TABLES_BRIDGE m
set_kernel_config CONFIG_NFT_BRIDGE_REJECT m
set_kernel_config CONFIG_NF_LOG_BRIDGE m
set_kernel_config CONFIG_MT76_CORE m
set_kernel_config CONFIG_MT76_LEDS m
set_kernel_config CONFIG_MT76_USB m
set_kernel_config CONFIG_MT76x2_COMMON m
set_kernel_config CONFIG_MT76x0U m
set_kernel_config CONFIG_MT76x2U m
set_kernel_config CONFIG_TOUCHSCREEN_ILI210X m
set_kernel_config CONFIG_BCM_VC_SM m
set_kernel_config CONFIG_BCM2835_SMI_DEV m
set_kernel_config CONFIG_RPIVID_MEM m
set_kernel_config CONFIG_HW_RANDOM_BCM2835 y
set_kernel_config CONFIG_TCG_TPM m
set_kernel_config CONFIG_HW_RANDOM_TPM y
set_kernel_config CONFIG_TCG_TIS m
set_kernel_config CONFIG_TCG_TIS_SPI m
set_kernel_config CONFIG_I2C_MUX m
set_kernel_config CONFIG_I2C_MUX_GPMUX m
set_kernel_config CONFIG_I2C_MUX_PCA954x m
set_kernel_config CONFIG_SPI_GPIO m
set_kernel_config CONFIG_BATTERY_MAX17040 m
set_kernel_config CONFIG_SENSORS_GPIO_FAN m
set_kernel_config CONFIG_SENSORS_RASPBERRYPI_HWMON m
set_kernel_config CONFIG_BCM2835_THERMAL y
set_kernel_config CONFIG_RC_CORE y
set_kernel_config CONFIG_RC_MAP y
set_kernel_config CONFIG_LIRC y
set_kernel_config CONFIG_RC_DECODERS y
set_kernel_config CONFIG_IR_NEC_DECODER m
set_kernel_config CONFIG_IR_RC5_DECODER m
set_kernel_config CONFIG_IR_RC6_DECODER m
set_kernel_config CONFIG_IR_JVC_DECODER m
set_kernel_config CONFIG_IR_SONY_DECODER m
set_kernel_config CONFIG_IR_SANYO_DECODER m
set_kernel_config CONFIG_IR_SHARP_DECODER m
set_kernel_config CONFIG_IR_MCE_KBD_DECODER m
set_kernel_config CONFIG_IR_XMP_DECODER m
set_kernel_config CONFIG_IR_IMON_DECODER m
set_kernel_config CONFIG_RC_DEVICES y
set_kernel_config CONFIG_RC_ATI_REMOTE m
set_kernel_config CONFIG_IR_IMON m
set_kernel_config CONFIG_IR_MCEUSB m
set_kernel_config CONFIG_IR_REDRAT3 m
set_kernel_config CONFIG_IR_STREAMZAP m
set_kernel_config CONFIG_IR_IGUANA m
set_kernel_config CONFIG_IR_TTUSBIR m
set_kernel_config CONFIG_RC_LOOPBACK m
set_kernel_config CONFIG_IR_GPIO_CIR m
set_kernel_config CONFIG_IR_GPIO_TX m
set_kernel_config CONFIG_IR_PWM_TX m
set_kernel_config CONFIG_VIDEO_V4L2_SUBDEV_API y
set_kernel_config CONFIG_VIDEO_AU0828_RC y
set_kernel_config CONFIG_VIDEO_CX231XX m
set_kernel_config CONFIG_VIDEO_CX231XX_RC y
set_kernel_config CONFIG_VIDEO_CX231XX_ALSA m
set_kernel_config CONFIG_VIDEO_CX231XX_DVB m
set_kernel_config CONFIG_VIDEO_TM6000 m
set_kernel_config CONFIG_VIDEO_TM6000_ALSA m
set_kernel_config CONFIG_VIDEO_TM6000_DVB m
set_kernel_config CONFIG_DVB_USB m
set_kernel_config CONFIG_DVB_USB_DIB3000MC m
set_kernel_config CONFIG_DVB_USB_A800 m
set_kernel_config CONFIG_DVB_USB_DIBUSB_MB m
set_kernel_config CONFIG_DVB_USB_DIBUSB_MB_FAULTY y
set_kernel_config CONFIG_DVB_USB_DIBUSB_MC m
set_kernel_config CONFIG_DVB_USB_DIB0700 m
set_kernel_config CONFIG_DVB_USB_UMT_010 m
set_kernel_config CONFIG_DVB_USB_CXUSB m
set_kernel_config CONFIG_DVB_USB_M920X m
set_kernel_config CONFIG_DVB_USB_DIGITV m
set_kernel_config CONFIG_DVB_USB_VP7045 m
set_kernel_config CONFIG_DVB_USB_VP702X m
set_kernel_config CONFIG_DVB_USB_GP8PSK m
set_kernel_config CONFIG_DVB_USB_NOVA_T_USB2 m
set_kernel_config CONFIG_DVB_USB_TTUSB2 m
set_kernel_config CONFIG_DVB_USB_DTT200U m
set_kernel_config CONFIG_DVB_USB_OPERA1 m
set_kernel_config CONFIG_DVB_USB_AF9005 m
set_kernel_config CONFIG_DVB_USB_AF9005_REMOTE m
set_kernel_config CONFIG_DVB_USB_PCTV452E m
set_kernel_config CONFIG_DVB_USB_DW2102 m
set_kernel_config CONFIG_DVB_USB_CINERGY_T2 m
set_kernel_config CONFIG_DVB_USB_DTV5100 m
set_kernel_config CONFIG_DVB_USB_AZ6027 m
set_kernel_config CONFIG_DVB_USB_TECHNISAT_USB2 m
set_kernel_config CONFIG_DVB_USB_AF9015 m
set_kernel_config CONFIG_DVB_USB_LME2510 m
set_kernel_config CONFIG_DVB_USB_RTL28XXU m
set_kernel_config CONFIG_VIDEO_EM28XX_RC m
set_kernel_config CONFIG_SMS_SIANO_RC m
set_kernel_config CONFIG_VIDEO_IR_I2C m
set_kernel_config CONFIG_VIDEO_ADV7180 m
set_kernel_config CONFIG_VIDEO_TC358743 m
set_kernel_config CONFIG_VIDEO_OV5647 m
set_kernel_config CONFIG_DVB_M88DS3103 m
set_kernel_config CONFIG_DVB_AF9013 m
set_kernel_config CONFIG_DVB_RTL2830 m
set_kernel_config CONFIG_DVB_RTL2832 m
set_kernel_config CONFIG_DVB_SI2168 m
set_kernel_config CONFIG_DVB_GP8PSK_FE m
set_kernel_config CONFIG_DVB_USB m
set_kernel_config CONFIG_DVB_LGDT3306A m
set_kernel_config CONFIG_FB_SIMPLE y
set_kernel_config CONFIG_SND_BCM2708_SOC_IQAUDIO_CODEC m
set_kernel_config CONFIG_SND_BCM2708_SOC_I_SABRE_Q2M m
set_kernel_config CONFIG_SND_AUDIOSENSE_PI m
set_kernel_config CONFIG_SND_SOC_AD193X m
set_kernel_config CONFIG_SND_SOC_AD193X_SPI m
set_kernel_config CONFIG_SND_SOC_AD193X_I2C m
set_kernel_config CONFIG_SND_SOC_CS4265 m
set_kernel_config CONFIG_SND_SOC_DA7213 m
set_kernel_config CONFIG_SND_SOC_ICS43432 m
set_kernel_config CONFIG_SND_SOC_TLV320AIC32X4 m
set_kernel_config CONFIG_SND_SOC_TLV320AIC32X4_I2C m
set_kernel_config CONFIG_SND_SOC_I_SABRE_CODEC m
set_kernel_config CONFIG_HID_BIGBEN_FF m
#set_kernel_config CONFIG_USB_XHCI_PLATFORM y
set_kernel_config CONFIG_USB_TMC m
set_kernel_config CONFIG_USB_UAS y
set_kernel_config CONFIG_USBIP_VUDC m
set_kernel_config CONFIG_USB_CONFIGFS m
set_kernel_config CONFIG_USB_CONFIGFS_SERIAL y
set_kernel_config CONFIG_USB_CONFIGFS_ACM y
set_kernel_config CONFIG_USB_CONFIGFS_OBEX y
set_kernel_config CONFIG_USB_CONFIGFS_NCM y
set_kernel_config CONFIG_USB_CONFIGFS_ECM y
set_kernel_config CONFIG_USB_CONFIGFS_ECM_SUBSET y
set_kernel_config CONFIG_USB_CONFIGFS_RNDIS y
set_kernel_config CONFIG_USB_CONFIGFS_EEM y
set_kernel_config CONFIG_USB_CONFIGFS_MASS_STORAGE y
set_kernel_config CONFIG_USB_CONFIGFS_F_LB_SS y
set_kernel_config CONFIG_USB_CONFIGFS_F_FS y
set_kernel_config CONFIG_USB_CONFIGFS_F_UAC1 y
set_kernel_config CONFIG_USB_CONFIGFS_F_UAC2 y
set_kernel_config CONFIG_USB_CONFIGFS_F_MIDI y
set_kernel_config CONFIG_USB_CONFIGFS_F_HID y
set_kernel_config CONFIG_USB_CONFIGFS_F_UVC y
set_kernel_config CONFIG_USB_CONFIGFS_F_PRINTER y
set_kernel_config CONFIG_LEDS_PCA963X m
set_kernel_config CONFIG_LEDS_IS31FL32XX m
set_kernel_config CONFIG_LEDS_TRIGGER_NETDEV m
set_kernel_config CONFIG_RTC_DRV_RV3028 m
set_kernel_config CONFIG_AUXDISPLAY y
set_kernel_config CONFIG_HD44780 m
set_kernel_config CONFIG_FB_TFT_SH1106 m
set_kernel_config CONFIG_VIDEO_CODEC_BCM2835 m
set_kernel_config CONFIG_BCM2835_POWER y
set_kernel_config CONFIG_INV_MPU6050_IIO m
set_kernel_config CONFIG_INV_MPU6050_I2C m
set_kernel_config CONFIG_SECURITYFS y
# Safer to build this in
set_kernel_config CONFIG_BINFMT_MISC y
# pulseaudio wants a buffer of at least this size
set_kernel_config CONFIG_SND_HDA_PREALLOC_SIZE 2048
# PR#3063: enable 3D acceleration with 64-bit kernel on RPi4
# set the appropriate kernel configs unlocked by this PR
set_kernel_config CONFIG_ARCH_BCM y
set_kernel_config CONFIG_ARCH_BCM2835 y
set_kernel_config CONFIG_DRM_V3D m
set_kernel_config CONFIG_DRM_VC4 m
set_kernel_config CONFIG_DRM_VC4_HDMI_CEC y
# PR#3144: add arm64 pcie bounce buffers; enables 4GiB on RPi4
# required by PR#3144; should already be applied, but just to be safe
set_kernel_config CONFIG_PCIE_BRCMSTB y
set_kernel_config CONFIG_BCM2835_MMC y
# Snap needs squashfs. The ubuntu eoan-preinstalled-server image at
# http://cdimage.ubuntu.com/ubuntu-server/daily-preinstalled/current/ uses snap
# during cloud-init setup at first boot. Without this the login accounts are not
# created and the user can not login.
set_kernel_config CONFIG_SQUASHFS y
# Ceph support for Block Device (RBD) and Filesystem (FS)
# https://docs.ceph.com/docs/master/
set_kernel_config CONFIG_CEPH_LIB m
set_kernel_config CONFIG_CEPH_LIB_USE_DNS_RESOLVER y
set_kernel_config CONFIG_CEPH_FS m
set_kernel_config CONFIG_CEPH_FSCACHE y
set_kernel_config CONFIG_CEPH_FS_POSIX_ACL y
set_kernel_config CONFIG_BLK_DEV_RBD m
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 ] || [ "$RPI_MODEL" = 4 ]; } ; then
set_kernel_config CONFIG_HAVE_KVM y
set_kernel_config CONFIG_HIGH_RES_TIMERS y
set_kernel_config CONFIG_HAVE_KVM_IRQCHIP y
set_kernel_config CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL y
set_kernel_config CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT y
set_kernel_config CONFIG_HAVE_KVM_EVENTFD y
set_kernel_config CONFIG_HAVE_KVM_IRQFD y
set_kernel_config CONFIG_HAVE_KVM_IRQ_ROUTING y
set_kernel_config CONFIG_HAVE_KVM_MSI y
set_kernel_config CONFIG_KVM y
set_kernel_config CONFIG_KVM_ARM_HOST y
set_kernel_config CONFIG_KVM_ARM_PMU y
set_kernel_config CONFIG_KVM_COMPAT y
set_kernel_config CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT y
set_kernel_config CONFIG_KVM_MMIO y
set_kernel_config CONFIG_KVM_VFIO y
set_kernel_config CONFIG_KVM_MMU_AUDIT y
set_kernel_config CONFIG_VHOST m
set_kernel_config CONFIG_VHOST_CROSS_ENDIAN_LEGACY y
set_kernel_config CONFIG_VHOST_NET m
set_kernel_config CONFIG_VIRTUALIZATION y
set_kernel_config CONFIG_SLAB_FREELIST_RANDOM=y
set_kernel_config CONFIG_SLAB_FREELIST_HARDENED=y
set_kernel_config CONFIG_MMU_NOTIFIER y
# erratum
set_kernel_config ARM64_ERRATUM_834220 y
# https://sourceforge.net/p/kvm/mailman/message/18440797/
set_kernel_config CONFIG_PREEMPT_NOTIFIERS y
fi
# enable apparmor,integrity audit,
if [ "$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 n
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_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_SYSTEM_TRUSTED_KEYS m
set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE 4096
fi
if [ "$ENABLE_CRYPTFS" = true ] ; then
set_kernel_config CONFIG_EMBEDDED y
set_kernel_config CONFIG_EXPERT y
set_kernel_config CONFIG_DAX y
set_kernel_config CONFIG_MD y
set_kernel_config CONFIG_BLK_DEV_MD y
set_kernel_config CONFIG_MD_AUTODETECT y
set_kernel_config CONFIG_BLK_DEV_DM y
set_kernel_config CONFIG_BLK_DEV_DM_BUILTIN y
set_kernel_config CONFIG_DM_CRYPT y
set_kernel_config CONFIG_CRYPTO_BLKCIPHER y
set_kernel_config CONFIG_CRYPTO_CBC y
set_kernel_config CONFIG_CRYPTO_XTS y
set_kernel_config CONFIG_CRYPTO_SHA512 y
set_kernel_config CONFIG_CRYPTO_MANAGER y
set_kernel_config CONFIG_ARM64_CRYPTO y
set_kernel_config CONFIG_CRYPTO_SHA256_ARM64 m
set_kernel_config CONFIG_CRYPTO_SHA512_ARM64 m
set_kernel_config CONFIG_CRYPTO_SHA1_ARM64_CE m
set_kernel_config CRYPTO_GHASH_ARM64_CE m
set_kernel_config CRYPTO_SHA2_ARM64_CE m
set_kernel_config CONFIG_CRYPTO_CRCT10DIF_ARM64_CE m
set_kernel_config CONFIG_CRYPTO_CRC32_ARM64_CE m
set_kernel_config CONFIG_CRYPTO_AES_ARM64 m
set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE m
set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_CCM y
set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_BLK y
set_kernel_config CONFIG_CRYPTO_AES_ARM64_NEON_BLK m
set_kernel_config CONFIG_CRYPTO_CHACHA20_NEON m
set_kernel_config CONFIG_CRYPTO_AES_ARM64_BS m
fi
# Netfilter kernel support See https://github.com/raspberrypi/linux/issues/2177#issuecomment-354647406
if [ "$KERNEL_NF" = true ] ; then
set_kernel_config CONFIG_IP_NF_SECURITY m
set_kernel_config CONFIG_NETLABEL y
set_kernel_config CONFIG_IP6_NF_SECURITY m
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_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 y
set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV6 y
set_kernel_config CONFIG_NF_NAT_PPTP m
set_kernel_config CONFIG_NF_NAT_PROTO_GRE m
set_kernel_config CONFIG_NF_NAT_REDIRECT y
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_IPV4 y
set_kernel_config CONFIG_NF_TABLES_IPV6 y
set_kernel_config CONFIG_NF_TABLES_SET m
set_kernel_config CONFIG_NF_TABLES_INET y
set_kernel_config CONFIG_NF_TABLES_NETDEV y
set_kernel_config CONFIG_NFT_CONNLIMIT m
set_kernel_config CONFIG_NFT_TUNNEL m
set_kernel_config CONFIG_NFT_SOCKET m
set_kernel_config CONFIG_NFT_TPROXY m
set_kernel_config CONFIG_NF_FLOW_TABLE m
set_kernel_config CONFIG_NFT_FLOW_OFFLOAD m
set_kernel_config CONFIG_NF_FLOW_TABLE_INET m
set_kernel_config CONFIG_NF_TABLES_ARP y
set_kernel_config CONFIG_NF_FLOW_TABLE_IPV4 y
set_kernel_config CONFIG_NF_FLOW_TABLE_IPV6 y
set_kernel_config CONFIG_NF_TABLES_BRIDGE y
set_kernel_config CONFIG_NF_CT_NETLINK_TIMEOUT m
set_kernel_config CONFIG_NFT_OSF 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 [ "$KERNEL_BPF" = true ] ; then
set_kernel_config CONFIG_BPF_SYSCALL y
set_kernel_config CONFIG_BPF_EVENTS y
set_kernel_config CONFIG_BPF_STREAM_PARSER y
set_kernel_config CONFIG_CGROUP_BPF y
set_kernel_config CONFIG_XDP_SOCKETS y
fi
# KERNEL_DEFAULT_GOV was set by user
if [ "$KERNEL_DEFAULT_GOV" != ondemand ] && [ -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_ONDEMAND
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
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 ] && [ "$REDUCE_KERNEL" = false ] ; then
make -C "${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}"
# 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/"*.dtbo ; 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 [ "$ENABLE_UBOOT" = false ] ; then
# Convert and copy kernel image to the boot directory
cp "${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
if [ "$SET_ARCH" = 64 ] ; then
if [ "$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 "$RPI3_64_KERNEL_URL"
fi
if [ "$SET_ARCH" = 64 ] && [ "$RPI_MODEL" = 4 ] ; then
# Create temporary directory for dl
temp_dir=$(as_nobody mktemp -d)
# Fetch kernel dl
as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI4_64_KERNEL_URL"
fi
#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 (dunno if its compatible with RPI4 - better compile your own kernel)
if [ "$SET_ARCH" = 32 ] && [ "$RPI_MODEL" != 4 ] ; then
# Create temporary directory for dl
temp_dir=$(as_nobody mktemp -d)
# Fetch kernel
as_nobody wget -O "${temp_dir}"/kernel.deb -c "$RPI_32_KERNEL_URL"
# Copy downloaded kernel package
mv "${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