mirror of
https://github.com/libretro/Lakka-LibreELEC.git
synced 2024-11-25 01:26:18 +00:00
52 lines
1.7 KiB
Bash
Executable File
52 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2017-present Team LibreELEC (https://libreelec.tv)
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[ -z "$SYSTEM_ROOT" ] && SYSTEM_ROOT=""
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[ -z "$BOOT_ROOT" ] && BOOT_ROOT="/flash"
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[ -z "$BOOT_PART" ] && BOOT_PART=$(df "$BOOT_ROOT" | tail -1 | awk {' print $1 '})
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if [ -z "$BOOT_DISK" ]; then
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case $BOOT_PART in
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/dev/sd[a-z][0-9]*)
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BOOT_DISK=$(echo $BOOT_PART | sed -e "s,[0-9]*,,g")
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;;
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/dev/mmcblk*)
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BOOT_DISK=$(echo $BOOT_PART | sed -e "s,p[0-9]*,,g")
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;;
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esac
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fi
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# mount $BOOT_ROOT r/w
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mount -o remount,rw $BOOT_ROOT
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# update Device Tree Blobs
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for all_dtb in /flash/*.dtb; do
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dtb=$(basename $all_dtb)
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if [ -f $SYSTEM_ROOT/usr/share/bootloader/$dtb ]; then
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echo "*** updating Device Tree Blob: $dtb ..."
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cp -p $SYSTEM_ROOT/usr/share/bootloader/$dtb $BOOT_ROOT
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fi
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done
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# update bootloader files
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UBOOT="${SYSTEM_ROOT}/usr/share/bootloader/flash.bin"
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if [ -f "${UBOOT}" ]; then
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DEVICE="$(basename ${BOOT_DISK})"
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if grep -q "MMC" /sys/class/block/${DEVICE}/device/type; then
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echo 0 > /sys/block/${DEVICE}boot0/force_ro
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echo "*** updating u-boot image on: ${BOOT_DISK}boot0 ..."
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dd if="${UBOOT}" of="${DEVICE}boot0" bs=1024 seek=33 conv=fsync > /dev/null 2>&1
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echo 0 > /sys/block/${DEVICE}boot1/force_ro
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echo "*** updating u-boot image on: ${BOOT_DISK}boot1 ..."
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dd if="${UBOOT}" of="${DEVICE}boot1" bs=1024 seek=33 conv=fsync > /dev/null 2>&1
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else
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echo "*** updating u-boot image on: ${BOOT_DISK} ..."
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dd if="${UBOOT}" of="$BOOT_DISK" bs=1024 seek=33 conv=fsync &>/dev/null
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fi
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fi
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# mount $BOOT_ROOT r/o
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sync
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mount -o remount,ro $BOOT_ROOT
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