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flash.sh: persist serial in cbfs

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Librem devices store their serial number as a text file
in cbfs; persist this across flashes.

Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
This commit is contained in:
Matt DeVillier 2019-07-31 22:53:04 -05:00
parent e8e1032027
commit a27affcc7d
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1 changed files with 6 additions and 0 deletions
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6
initrd/bin/flash.sh
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@ -43,6 +43,12 @@ flash_rom() {
preserve_rom /tmp/${CONFIG_BOARD}.rom \
|| die "$ROM: Config preservation failed"
fi
# persist serial number from CBFS
if cbfs -r serial_number > /tmp/serial 2>/dev/null; then
echo "Persisting system serial"
cbfs -o /tmp/${CONFIG_BOARD}.rom -d serial_number 2>/dev/null || true
cbfs -o /tmp/${CONFIG_BOARD}.rom -a serial_number -f /tmp/serial
fi
flashrom $FLASHROM_OPTIONS -w /tmp/${CONFIG_BOARD}.rom \
|| die "$ROM: Flash failed"