39 lines
1.3 KiB
Bash
Executable File
39 lines
1.3 KiB
Bash
Executable File
platform_do_upgrade_emmc() {
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local board=$(board_name)
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local diskdev partdev
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export_bootdevice && export_partdevice diskdev 0 || {
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v "Unable to determine upgrade device"
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return 1
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}
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sync
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if [ "$UPGRADE_OPT_SAVE_PARTITIONS" = "1" ]; then
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get_partitions "/dev/$diskdev" bootdisk
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v "Extract boot sector from the image"
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get_image_dd "$1" of=/tmp/image.bs count=1 bs=512b
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get_partitions /tmp/image.bs image
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fi
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#iterate over each partition from the image and write it to the boot disk
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while read part start size; do
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if export_partdevice partdev $part; then
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if [ "$partdev" = "mmcblk0p2" ]; then
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v "Writing image mmcblk0p3 for /dev/$partdev $start $size"
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get_image_dd "$1" of="/dev/mmcblk0p3" ibs="512" obs=1M skip="$start" count="$size" conv=fsync
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elif [ "$partdev" = "mmcblk0p1" ]; then
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v "Writing image mmcblk0p1 for /dev/$partdev $start $size"
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get_image_dd "$1" of="/dev/$partdev" ibs="512" obs=1M skip="$start" count="$size" conv=fsync
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fi
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else
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v "Unable to find partition $part device, skipped."
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fi
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done < /tmp/partmap.image
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v "Writing new UUID to /dev/$diskdev..."
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get_image_dd "$1" of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
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dd if=/dev/zero of=$(find_mmc_part rootfs_data) bs=512 count=8
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sleep 1
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}
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