41 lines
779 B
Plaintext
41 lines
779 B
Plaintext
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#!/bin/bash
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set -e
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image_file=$1
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if [ -z $image_file ]; then
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echo "USAGE: $0 [IMAGE_PATH]"
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return 1
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fi
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# change to directory containing update file
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cd $(dirname $image_file)
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# check integrity of image
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sha256sum -c ${image_file}.sha256
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# get current partition index
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current_idx=$(rdev | sed 's#/dev/mmcblk0p\([^ ]*\).*#\1#')
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if [ $current_idx -eq 2 ]; then
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echo "Start update for partition B"
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flash_idx=3
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else
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echo "Start update for partition A"
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flash_idx=2
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fi
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flash_device="/dev/mmcblk0p${flash_idx}"
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# flash device
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gunzip -c ${image_file} | dd of=${flash_device} status=progress
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# switch active partition
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mount -o remount,rw /uboot
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fw_setenv boot_partition ${flash_idx}
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sync
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mount -o remount,ro /uboot
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echo "Update complete -> please reboot"
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