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102 lines
4.7 KiB
102 lines
4.7 KiB
# Binaries generated with the following script:
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# https://github.com/mendersoftware/mender-convert-integration-scripts/blob/master/build-uboot-rpi.sh
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# Raspberry Pi does not support GRUB bootloader integration, fallback to U-boot.
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MENDER_GRUB_EFI_INTEGRATION=n
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# Nothing to copy
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MENDER_COPY_BOOT_GAP=n
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# 4MB alignment
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MENDER_PARTITION_ALIGNMENT="4194304"
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RASPBERRYPI_BINARIES="${RASPBERRYPI_CONFIG}-2019.01.tar.gz"
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RASPBERRYPI_BINARIES_URL="${MENDER_STORAGE_URL}/mender-convert/uboot/raspberrypi/${RASPBERRYPI_BINARIES}"
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function platform_modify() {
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mkdir -p work/rpi/binaries
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run_and_log_cmd "wget -q ${RASPBERRYPI_BINARIES_URL} -P work/rpi/binaries"
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run_and_log_cmd "tar xzvf work/rpi/binaries/${RASPBERRYPI_BINARIES} -C work/rpi/binaries"
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# By default, we modify cmdline.txt.
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#
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# In Ubuntu, the file is called btcmd.txt; if this file exists, use it instead
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CMDLINE="cmdline.txt"
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if [ -f work/boot/btcmd.txt ]; then
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CMDLINE="btcmd.txt"
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fi
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# Make a copy of Linux kernel arguments and modify.
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run_and_log_cmd "cp work/boot/$CMDLINE work/rpi/$CMDLINE"
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# Set a dynamic rootfs part (required for Mender A/B update strategy)
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run_and_log_cmd "sed -i 's/\b[ ]root=[^ ]*/ root=\${mender_kernel_root}/' work/rpi/$CMDLINE"
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# Root filesystem can not be resized when the disk is partition according
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# to Mender layout, where the rootfs partition is the not last one which
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# is a requirement to be able to do an "online" resize.
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#
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# This disables resize of rootfs on boot but applies the changes to
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# cmdline.txt that are performed in the init_resize.sh script.
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#
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# Extracted from /usr/lib/raspi-config/init_resize.sh
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run_and_log_cmd "sed -i 's| init=/usr/lib/raspi-config/init_resize\.sh||' work/rpi/$CMDLINE"
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run_and_log_cmd "sed -i 's| sdhci\.debug_quirks2=4||' work/rpi/$CMDLINE"
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if ! grep -q splash work/rpi/$CMDLINE; then
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run_and_log_cmd "sed -i 's/ quiet//g' work/rpi/$CMDLINE"
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fi
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# Update Linux kernel command arguments with our custom configuration
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run_and_log_cmd "sudo cp work/rpi/$CMDLINE work/boot/"
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# Mask udisks2.service, otherwise it will mount the inactive part and we
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# might write an update while it is mounted which often result in
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# corruptions.
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#
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# TODO: Find a way to only blacklist mmcblk0pX devices instead of masking
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# the service.
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run_and_log_cmd "sudo ln -sf /dev/null work/rootfs/etc/systemd/system/udisks2.service"
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# Ubuntu Server images actually use U-boot by default on RPi3 and the
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# layout is slightly different on the boot partition. That is why we need
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# additional logic here to determine what we are converting.
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if [ -e work/boot/uboot_rpi_4_32b.bin ] && [ -e work/boot/vmlinuz ]; then
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RASPBERRYPI_KERNEL_IMAGE="vmlinuz"
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RASPBERRYPI_BOOTLOADER_IMAGE="uboot_rpi_4_32b.bin"
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elif [ -e work/boot/uboot.bin ] && [ -e work/boot/vmlinuz ]; then
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RASPBERRYPI_KERNEL_IMAGE="vmlinuz"
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RASPBERRYPI_BOOTLOADER_IMAGE="uboot.bin"
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else
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RASPBERRYPI_BOOTLOADER_IMAGE="${RASPBERRYPI_KERNEL_IMAGE}"
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fi
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# Extract Linux kernel and install to /boot directory on rootfs if it doesn't already exist.
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# If it already exists, the input image is likely already converted so we just want to use
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# the existing kernel image.
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if [ ! -f "work/rootfs/boot/${MENDER_KERNEL_IMAGETYPE}" ]; then
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run_and_log_cmd "sudo cp work/boot/${RASPBERRYPI_KERNEL_IMAGE} work/rootfs/boot/${MENDER_KERNEL_IMAGETYPE}"
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fi
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# Replace kernel with U-boot and add boot script
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run_and_log_cmd "sudo mkdir -p work/rootfs/uboot"
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run_and_log_cmd "sudo cp work/rpi/binaries/u-boot.bin work/boot/${RASPBERRYPI_BOOTLOADER_IMAGE}"
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run_and_log_cmd "sudo cp work/rpi/binaries/boot.scr work/boot"
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run_and_log_cmd "sudo cp work/rpi/binaries/fw_env.config work/rootfs/etc/"
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run_and_log_cmd "sudo cp work/rpi/binaries/uboot-git-log.txt work/boot"
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# Raspberry Pi applications expect to find this on the device and in some
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# cases parse the options to determine the functionality.
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run_and_log_cmd "sudo ln -fs /uboot/config.txt work/rootfs/boot/config.txt"
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run_and_log_cmd "sudo ln -fs /uboot/overlays work/rootfs/boot/overlays"
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run_and_log_cmd "sudo ln -fs /uboot/$CMDLINE work/rootfs/boot/$CMDLINE"
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run_and_log_cmd "sudo install -m 755 work/rpi/binaries/fw_printenv work/rootfs/sbin/fw_printenv"
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run_and_log_cmd "sudo ln -fs /sbin/fw_printenv work/rootfs/sbin/fw_setenv"
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# Remove original 'resize2fs_once' script and its symbolic link.
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if [ -L work/rootfs/etc/rc3.d/S01resize2fs_once ]; then
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run_and_log_cmd "sudo unlink work/rootfs/etc/rc3.d/S01resize2fs_once"
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fi
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run_and_log_cmd "sudo rm -f work/rootfs/etc/init.d/resize2fs_once"
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}
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