150 lines
3.9 KiB
Bash
Executable File
150 lines
3.9 KiB
Bash
Executable File
#!/bin/sh
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#===============================================================================
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#
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# update-firmware
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#
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# Copyright (C) 2021-2022 by Digi International Inc.
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# All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 as published by
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# the Free Software Foundation.
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#
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#
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# !Description: Dual boot firmware update script
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#
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#===============================================================================
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SCRIPTNAME="$(basename $(readlink -f ${0}))"
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VERBOSE=""
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PUBLIC_KEY="/etc/ssl/certs/key.pub"
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ACTIVE_SYSTEM="$(fw_printenv -n active_system 2>/dev/null)"
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## Local functions
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usage() {
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cat <<EOF
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Usage: ${SCRIPTNAME} [OPTIONS] </your-path/your-filename>.swu
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-a Show currently active system
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-v Enable verbosity
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-h Show this help
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EOF
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}
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show_active_system() {
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if [ "${ACTIVE_SYSTEM}" = "linux_a" ]; then
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echo "Active system is A"
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else
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echo "Active system is B"
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fi
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}
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while :; do
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case $1 in
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-a|--active) show_active_system;exit
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;;
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-v|--verbose) VERBOSE="-v"
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;;
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-h|--help) usage;exit
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;;
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*) UPDATE_FILE="${1}"
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break
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;;
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esac
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shift
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done
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# Check update file parameter.
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if [ -z "${UPDATE_FILE}" ]; then
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echo "[ERROR] Update file not specified"
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exit
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fi
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PARTTABLE="/proc/mtd"
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MTDINDEX="$(sed -ne "s/\(^mtd[0-9]\+\):.*\<environment\>.*/\1/g;T;p" ${PARTTABLE} 2>/dev/null)"
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if [ -z "${MTDINDEX}" ]; then
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# Get Boot partition device and index.
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BOOT_PART="$(fw_printenv -n mmcpart 2>/dev/null)"
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BOOT_DEV="$(fw_printenv -n mmcbootdev 2>/dev/null)"
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# Get current partition information so we can
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# determine where to flash the images.
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if [ "${ACTIVE_SYSTEM}" = "linux_a" ]; then
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echo "Current system is A; Updating system on B"
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KERNELBOOT="linux_b"
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ROOTFS="rootfs_b"
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IMAGE_SET="mmc,secondary"
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else
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echo "Current system is B; Updating system on A"
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KERNELBOOT="linux_a"
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ROOTFS="rootfs_a"
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IMAGE_SET="mmc,primary"
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fi
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# get boot partition index
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MMC_PART="$(ls -l /dev/disk/by-partlabel/ | grep -i ${KERNELBOOT} | awk '{print $11}' | sed -e 's/[../mmcblkp]//g' -e 's/^.//')"
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# search rootfs UUID
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MMCROOT_PART="$(ls -l /dev/disk/by-partlabel/ | grep -i ${ROOTFS} | awk '{print $11}' | sed -e 's/[../mmcblkp]//g' -e 's/^.//')"
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PART_UUID="$(ls -l /dev/disk/by-partuuid/ | grep -i mmcblk${BOOT_DEV}p${MMCROOT_PART} | awk '{print $9}')"
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echo ""
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echo "Updating '${IMAGE_SET}' image set from '${UPDATE_FILE}'..."
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echo ""
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# Execute the update.
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swupdate ${VERBOSE} -i "${UPDATE_FILE}" -e "${IMAGE_SET}"
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if [ "$?" = "0" ]; then
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fw_setenv mmcroot PARTUUID=${PART_UUID}
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fw_setenv mmcpart ${MMC_PART}
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fw_setenv active_system ${KERNELBOOT}
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fw_setenv bootcount 0
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echo "Firmware update finished; Rebooting system."
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reboot -f
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else
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echo "[ERROR] $? There was an error performing the update"
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fi
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else
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# Get current partition information so we can
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# determine where to flash the images.
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if [ "${ACTIVE_SYSTEM}" = "linux_a" ]; then
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echo "Current system is A; Updating system on B"
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KERNELBOOT="linux_b"
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ROOTFS="rootfs_b"
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IMAGE_SET="mtd,secondary"
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else
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echo "Current system is B; Updating system on A"
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KERNELBOOT="linux_a"
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ROOTFS="rootfs_a"
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IMAGE_SET="mtd,primary"
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fi
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echo ""
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echo "Updating '${IMAGE_SET}' image set from '${UPDATE_FILE}'..."
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echo ""
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# Umount the partition before the update.
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umount /mnt/${KERNELBOOT}
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# Execute the update.
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if [ -f "${PUBLIC_KEY}" ]; then
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swupdate ${VERBOSE} -i "${UPDATE_FILE}" -e "${IMAGE_SET}" -k "${PUBLIC_KEY}"
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else
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swupdate ${VERBOSE} -i "${UPDATE_FILE}" -e "${IMAGE_SET}"
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fi
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if [ "$?" = "0" ]; then
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fw_setenv mtdbootpart ${KERNELBOOT}
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fw_setenv mtdrootfspart ${ROOTFS}
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fw_setenv rootfsvol ${ROOTFS}
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fw_setenv active_system ${KERNELBOOT}
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fw_setenv bootcount 0
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echo "Firmware update finished; Rebooting system."
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reboot -f
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else
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echo "[ERROR] $? There was an error performing the update"
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fi
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fi
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