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#
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# Setup RPi2/3 config and cmdline
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#
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# Load utility functions
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. ./functions.sh
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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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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 "${RPI_FIRMWARE_DIR}"/boot/fixup_cd.dat "${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 "${RPI_FIRMWARE_DIR}"/boot/start.elf "${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 "${RPI_FIRMWARE_DIR}"/boot/start_x.elf "${BOOT_DIR}"/start_x.elf
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else
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# Create temporary directory for boot binaries
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temp_dir=$(as_nobody mktemp -d)
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# Install latest boot binaries from raspberry/firmware github
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as_nobody wget -q -O "${temp_dir}/bootcode.bin" "${FIRMWARE_URL}/bootcode.bin"
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as_nobody wget -q -O "${temp_dir}/fixup.dat" "${FIRMWARE_URL}/fixup.dat"
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as_nobody wget -q -O "${temp_dir}/fixup_cd.dat" "${FIRMWARE_URL}/fixup_cd.dat"
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as_nobody wget -q -O "${temp_dir}/fixup_x.dat" "${FIRMWARE_URL}/fixup_x.dat"
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as_nobody wget -q -O "${temp_dir}/start.elf" "${FIRMWARE_URL}/start.elf"
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as_nobody wget -q -O "${temp_dir}/start_cd.elf" "${FIRMWARE_URL}/start_cd.elf"
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as_nobody wget -q -O "${temp_dir}/start_x.elf" "${FIRMWARE_URL}/start_x.elf"
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# Move downloaded boot binaries
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mv "${temp_dir}/"* "${BOOT_DIR}/"
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# Remove temporary directory for boot binaries
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rm -fr "${temp_dir}"
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# Set permissions of the boot binaries
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chown -R root:root "${BOOT_DIR}"
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chmod -R 600 "${BOOT_DIR}"
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fi
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# Setup firmware boot cmdline
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if [ "$ENABLE_SPLITFS" = true ] ; then
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CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda1 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1 init=/bin/systemd"
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else
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CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1 init=/bin/systemd"
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fi
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# Add encrypted root partition to cmdline.txt
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if [ "$ENABLE_CRYPTFS" = true ] ; then
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if [ "$ENABLE_SPLITFS" = true ] ; then
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CMDLINE=$(echo "${CMDLINE}" | sed "s/sda1/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/sda1:${CRYPTFS_MAPPING}/")
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else
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CMDLINE=$(echo "${CMDLINE}" | sed "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/mmcblk0p2:${CRYPTFS_MAPPING}/")
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fi
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fi
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# Enable Kernel messages on standard output
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if [ "$ENABLE_PRINTK" = true ] ; then
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install_readonly files/sysctl.d/83-rpi-printk.conf "${ETC_DIR}/sysctl.d/83-rpi-printk.conf"
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fi
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# Install udev rule for serial alias - serial0 = console serial1=bluetooth
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install_readonly files/etc/99-com.rules "${LIB_DIR}/udev/rules.d/99-com.rules"
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# Remove IPv6 networking support
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if [ "$ENABLE_IPV6" = false ] ; then
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CMDLINE="${CMDLINE} ipv6.disable=1"
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fi
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# Automatically assign predictable network interface names
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if [ "$ENABLE_IFNAMES" = false ] ; then
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CMDLINE="${CMDLINE} net.ifnames=0"
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else
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CMDLINE="${CMDLINE} net.ifnames=1"
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fi
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# Disable Raspberry Pi console logo
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if [ "$ENABLE_LOGO" = false ] ; then
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CMDLINE="${CMDLINE} logo.nologo"
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fi
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# Strictly limit verbosity of boot up console messages
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if [ "$ENABLE_SILENT_BOOT" = true ] ; then
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CMDLINE="${CMDLINE} quiet loglevel=0 rd.systemd.show_status=auto rd.udev.log_priority=0"
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fi
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# Install firmware config
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install_readonly files/boot/config.txt "${BOOT_DIR}/config.txt"
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# Disable Raspberry Pi console logo
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if [ "$ENABLE_SLASH" = false ] ; then
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echo "disable_splash=1" >> "${BOOT_DIR}/config.txt"
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fi
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# Locks CPU frequency at maximum
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if [ "$ENABLE_TURBO" = true ] ; then
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echo "force_turbo=1" >> "${BOOT_DIR}/config.txt"
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# helps to avoid sdcard corruption when force_turbo is enabled.
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echo "boot_delay=1" >> "${BOOT_DIR}/config.txt"
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fi
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if [ "$RPI_MODEL" = 0 ] || [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; then
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# Bluetooth enabled
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if [ "$ENABLE_BLUETOOTH" = true ] ; then
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# Create temporary directory for Bluetooth sources
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temp_dir=$(as_nobody mktemp -d)
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# Fetch Bluetooth sources
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as_nobody git -C "${temp_dir}" clone "${BLUETOOTH_URL}"
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# Copy downloaded sources
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mv "${temp_dir}/pi-bluetooth" "${R}/tmp/"
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# Bluetooth firmware from arch aur https://aur.archlinux.org/packages/pi-bluetooth/
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as_nobody wget -q -O "${R}/tmp/pi-bluetooth/LICENCE.broadcom_bcm43xx" https://aur.archlinux.org/cgit/aur.git/plain/LICENCE.broadcom_bcm43xx?h=pi-bluetooth
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as_nobody wget -q -O "${R}/tmp/pi-bluetooth/BCM43430A1.hcd" https://aur.archlinux.org/cgit/aur.git/plain/BCM43430A1.hcd?h=pi-bluetooth
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# Set permissions
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chown -R root:root "${R}/tmp/pi-bluetooth"
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# Install tools
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install_readonly "${R}/tmp/pi-bluetooth/usr/bin/btuart" "${R}/usr/bin/btuart"
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install_readonly "${R}/tmp/pi-bluetooth/usr/bin/bthelper" "${R}/usr/bin/bthelper"
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# make scripts executable
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chmod +x "${R}/usr/bin/bthelper"
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chmod +x "${R}/usr/bin/btuart"
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# Install bluetooth udev rule
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install_readonly "${R}/tmp/pi-bluetooth/lib/udev/rules.d/90-pi-bluetooth.rules" "${LIB_DIR}/udev/rules.d/90-pi-bluetooth.rules"
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# Install Firmware Flash file and apropiate licence
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mkdir -p "$BLUETOOTH_FIRMWARE_DIR"
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install_readonly "${R}/tmp/pi-bluetooth/LICENCE.broadcom_bcm43xx" "${BLUETOOTH_FIRMWARE_DIR}/LICENCE.broadcom_bcm43xx"
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install_readonly "${R}/tmp/pi-bluetooth/BCM43430A1.hcd" "${BLUETOOTH_FIRMWARE_DIR}/LICENCE.broadcom_bcm43xx"
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install_readonly "${R}/tmp/pi-bluetooth/debian/pi-bluetooth.bthelper@.service" "${ETC_DIR}/systemd/system/pi-bluetooth.bthelper@.service"
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install_readonly "${R}/tmp/pi-bluetooth/debian/pi-bluetooth.hciuart.service" "${ETC_DIR}/systemd/system/pi-bluetooth.hciuart.service"
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# Remove temporary directories
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rm -fr "${temp_dir}"
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rm -fr "${R}"/tmp/pi-bluetooth
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# Switch Pi3 Bluetooth function to use the mini-UART (ttyS0) and restore UART0/ttyAMA0 over GPIOs 14 & 15. Slow Bluetooth and slow cpu. Use /dev/ttyS0 instead of /dev/ttyAMA0
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if [ "$ENABLE_MINIUART_OVERLAY" = true ] ; then
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# set overlay to swap ttyAMA0 and ttyS0
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echo "dtoverlay=pi3-miniuart-bt" >> "${BOOT_DIR}/config.txt"
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# if force_turbo didn't lock cpu at high speed, lock it at low speed (XOR logic) or miniuart will be broken
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if [ "$ENABLE_TURBO" = false ] ; then
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echo "core_freq=250" >> "${BOOT_DIR}/config.txt"
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fi
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fi
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# Activate services
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chroot_exec systemctl enable pi-bluetooth.hciuart.service
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else # if ENABLE_BLUETOOTH = false
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# set overlay to disable bluetooth
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echo "dtoverlay=pi3-disable-bt" >> "${BOOT_DIR}/config.txt"
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fi # ENABLE_BLUETOOTH end
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fi
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# may need sudo systemctl disable hciuart
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if [ "$ENABLE_CONSOLE" = true ] ; then
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echo "enable_uart=1" >> "${BOOT_DIR}/config.txt"
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# add string to cmdline
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CMDLINE="${CMDLINE} console=serial0,115200"
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# Enable serial console systemd style
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chroot_exec systemctl enable serial-getty\@serial0.service
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else
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echo "enable_uart=0" >> "${BOOT_DIR}/config.txt"
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# disable serial console systemd style
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chroot_exec systemctl disable serial-getty\@"$SET_SERIAL".service
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fi
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# Disable dphys-swapfile service. Will get enabled on first boot
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if [ "$ENABLE_DPHYSSWAP" = true ] ; then
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chroot_exec systemctl disable dphys-swapfile
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fi
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if [ "$ENABLE_SYSTEMDSWAP" = true ] ; then
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# Create temporary directory for systemd-swap sources
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temp_dir=$(as_nobody mktemp -d)
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# Fetch systemd-swap sources
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as_nobody git -C "${temp_dir}" clone "${SYSTEMDSWAP_URL}"
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# Copy downloaded systemd-swap sources
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mv "${temp_dir}/systemd-swap" "${R}/tmp/"
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# Set permissions of the systemd-swap sources
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chown -R root:root "${R}/tmp/systemd-swap"
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# Remove temporary directory for systemd-swap sources
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rm -fr "${temp_dir}"
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# Change into downloaded src dir
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cd "${R}/tmp/systemd-swap" || exit
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# Build package
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. ./package.sh debian
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# Install package
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chroot_exec dpkg -i /tmp/systemd-swap/systemd-swap-*any.deb
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# Enable service
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chroot_exec systemctl enable systemd-swap
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# Change back into script root dir
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cd "${WORKDIR}" || exit
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else
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# Enable ZSWAP in cmdline if systemd-swap is not used
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if [ "$KERNEL_ZSWAP" = true ] ; then
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CMDLINE="${CMDLINE} zswap.enabled=1 zswap.max_pool_percent=25 zswap.compressor=lz4"
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fi
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fi
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if [ "$KERNEL_SECURITY" = true ] ; then
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CMDLINE="${CMDLINE} apparmor=1 security=apparmor"
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fi
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# Install firmware boot cmdline
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echo "${CMDLINE}" > "${BOOT_DIR}/cmdline.txt"
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# Setup minimal GPU memory allocation size: 16MB (no X)
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if [ "$ENABLE_MINGPU" = true ] ; then
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echo "gpu_mem=16" >> "${BOOT_DIR}/config.txt"
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fi
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# Setup boot with initramfs
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if [ "$ENABLE_INITRAMFS" = true ] ; then
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echo "initramfs initramfs-${KERNEL_VERSION} followkernel" >> "${BOOT_DIR}/config.txt"
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fi
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# Create firmware configuration and cmdline symlinks
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ln -sf firmware/config.txt "${R}/boot/config.txt"
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ln -sf firmware/cmdline.txt "${R}/boot/cmdline.txt"
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# Install and setup kernel modules to load at boot
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mkdir -p "${LIB_DIR}/modules-load.d/"
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install_readonly files/modules/rpi2.conf "${LIB_DIR}/modules-load.d/rpi2.conf"
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# Load hardware random module at boot
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if [ "$ENABLE_HWRANDOM" = true ] && [ "$BUILD_KERNEL" = false ] ; then
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sed -i "s/^# bcm2708_rng/bcm2708_rng/" "${LIB_DIR}/modules-load.d/rpi2.conf"
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fi
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# Load sound module at boot
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if [ "$ENABLE_SOUND" = true ] ; then
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sed -i "s/^# snd_bcm2835/snd_bcm2835/" "${LIB_DIR}/modules-load.d/rpi2.conf"
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else
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echo "dtparam=audio=off" >> "${BOOT_DIR}/config.txt"
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fi
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# Enable I2C interface
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if [ "$ENABLE_I2C" = true ] ; then
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echo "dtparam=i2c_arm=on" >> "${BOOT_DIR}/config.txt"
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sed -i "s/^# i2c-bcm2708/i2c-bcm2708/" "${LIB_DIR}/modules-load.d/rpi2.conf"
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sed -i "s/^# i2c-dev/i2c-dev/" "${LIB_DIR}/modules-load.d/rpi2.conf"
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fi
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# Enable SPI interface
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if [ "$ENABLE_SPI" = true ] ; then
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echo "dtparam=spi=on" >> "${BOOT_DIR}/config.txt"
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echo "spi-bcm2708" >> "${LIB_DIR}/modules-load.d/rpi2.conf"
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if [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ]; then
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sed -i "s/spi-bcm2708/spi-bcm2835/" "${LIB_DIR}/modules-load.d/rpi2.conf"
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fi
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fi
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# Disable RPi2/3 under-voltage warnings
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if [ -n "$DISABLE_UNDERVOLT_WARNINGS" ] ; then
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echo "avoid_warnings=${DISABLE_UNDERVOLT_WARNINGS}" >> "${BOOT_DIR}/config.txt"
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fi
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# Install kernel modules blacklist
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mkdir -p "${ETC_DIR}/modprobe.d/"
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install_readonly files/modules/raspi-blacklist.conf "${ETC_DIR}/modprobe.d/raspi-blacklist.conf"
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# Install sysctl.d configuration files
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install_readonly files/sysctl.d/81-rpi-vm.conf "${ETC_DIR}/sysctl.d/81-rpi-vm.conf"
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