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LibreELEC.tv/projects/RPi/bootloader/update.sh
2019-06-13 22:12:21 +01:00

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2009-2014 Stephan Raue (stephan@openelec.tv)
[ -z "$BOOT_ROOT" ] && BOOT_ROOT="/flash"
[ -z "$SYSTEM_ROOT" ] && SYSTEM_ROOT=""
# mount $BOOT_ROOT r/w
mount -o remount,rw $BOOT_ROOT
# Something has gone horribly wrong... clean up
[ -s $BOOT_ROOT/overlays ] || rm -fr $BOOT_ROOT/overlays $BOOT_ROOT/FSCK*.REC
# update bootloader files
cp -p $SYSTEM_ROOT/usr/share/bootloader/LICENCE* $BOOT_ROOT
cp -p $SYSTEM_ROOT/usr/share/bootloader/bootcode.bin $BOOT_ROOT
cp -p $SYSTEM_ROOT/usr/share/bootloader/fixup.dat $BOOT_ROOT
cp -p $SYSTEM_ROOT/usr/share/bootloader/start.elf $BOOT_ROOT
[ -f $SYSTEM_ROOT/usr/share/bootloader/dt-blob.bin ] && cp -p $SYSTEM_ROOT/usr/share/bootloader/dt-blob.bin $BOOT_ROOT
rm -f $BOOT_ROOT/bcm283*.dtb # cleanup excess dtb's used by upstream kernels (ie. not LE)
cp -p $SYSTEM_ROOT/usr/share/bootloader/*.dtb $BOOT_ROOT
cp -pR $SYSTEM_ROOT/usr/share/bootloader/overlays $BOOT_ROOT
# cleanup unneeded files
rm -rf $BOOT_ROOT/loader.bin
rm -rf $BOOT_ROOT/fixup_x.dat
rm -rf $BOOT_ROOT/start_x.elf
# some config.txt magic
if [ ! -f $BOOT_ROOT/config.txt ]; then
cp -p $SYSTEM_ROOT/usr/share/bootloader/config.txt $BOOT_ROOT
elif [ -z "`grep "^[ ]*gpu_mem.*" $BOOT_ROOT/config.txt`" ]; then
mv $BOOT_ROOT/config.txt $BOOT_ROOT/config.txt.bk
cat $SYSTEM_ROOT/usr/share/bootloader/config.txt \
$BOOT_ROOT/config.txt.bk > $BOOT_ROOT/config.txt
#else
# sed -e "s,gpu_mem=100,gpu_mem=128,g" -i $BOOT_ROOT/config.txt
# sed -e "s,gpu_mem_256=100,# gpu_mem_256=128,g" -i $BOOT_ROOT/config.txt
# sed -e "s,gpu_mem_512=128,# gpu_mem_512=128,g" -i $BOOT_ROOT/config.txt
fi
# Add distro config file
if [ -f $SYSTEM_ROOT/usr/share/bootloader/distroconfig.txt ]; then
cp -p $SYSTEM_ROOT/usr/share/bootloader/distroconfig.txt $BOOT_ROOT
fi
# mount $BOOT_ROOT r/o
sync
mount -o remount,ro $BOOT_ROOT