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Lakka-LibreELEC/projects/Allwinner/bootloader/update.sh
2021-01-21 22:19:07 +01:00

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)
[ -z "$BOOT_ROOT" ] && BOOT_ROOT="/flash"
[ -z "$BOOT_PART" ] && BOOT_PART=$(df "$BOOT_ROOT" | tail -1 | awk {' print $1 '})
if [ -z "$BOOT_DISK" ]; then
case $BOOT_PART in
/dev/sd[a-z][0-9]*)
BOOT_DISK=$(echo $BOOT_PART | sed -e "s,[0-9]*,,g")
;;
/dev/mmcblk*)
BOOT_DISK=$(echo $BOOT_PART | sed -e "s,p[0-9]*,,g")
;;
esac
fi
# mount $BOOT_ROOT r/w
mount -o remount,rw $BOOT_ROOT
# update Device Tree Blobs
for all_dtb in /flash/*.dtb; do
dtb=$(basename $all_dtb)
if [ -f $SYSTEM_ROOT/usr/share/bootloader/$dtb ]; then
echo "*** updating Device Tree Blob: $dtb ..."
cp -p $SYSTEM_ROOT/usr/share/bootloader/$dtb $BOOT_ROOT
fi
done
# update Device Tree Overlays
if [ -d $SYSTEM_ROOT/usr/share/bootloader/overlays ]; then
echo "*** updating Device Tree Overlays ..."
mkdir -p /flash/overlays
cp -p $SYSTEM_ROOT/usr/share/bootloader/overlays/* /flash/overlays
fi
# update bootloader files
if [ -f $SYSTEM_ROOT/usr/share/bootloader/u-boot-sunxi-with-spl.bin ]; then
echo "*** updating U-Boot on: $BOOT_DISK ..."
dd if=$SYSTEM_ROOT/usr/share/bootloader/u-boot-sunxi-with-spl.bin of="$BOOT_DISK" bs=1k seek=8 conv=fsync &>/dev/null
fi
# mount $BOOT_ROOT r/o
sync
mount -o remount,ro $BOOT_ROOT