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flash_script.sh
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#MAGISK
##########################################################################################
#
# Magisk Flash Script
# by topjohnwu
#
# This script will detect, construct the environment for Magisk
# It will then call boot_patch.sh to patch the boot image
#
##########################################################################################
##########################################################################################
# Preparation
##########################################################################################
COMMONDIR=$INSTALLER/common
APK=$COMMONDIR/magisk.apk
CHROMEDIR=$INSTALLER/chromeos
# Default permissions
umask 022
OUTFD=$2
ZIP=$3
if [ ! -f $COMMONDIR/util_functions.sh ]; then
echo "! Unable to extract zip file!"
exit 1
fi
# Load utility fuctions
. $COMMONDIR/util_functions.sh
setup_flashable
##########################################################################################
# Detection
##########################################################################################
ui_print "************************"
ui_print "* Magisk v$MAGISK_VER Installer"
ui_print "************************"
is_mounted /data || mount /data || is_mounted /cache || mount /cache
mount_partitions
check_data
get_flags
find_boot_image
[ -z $BOOTIMAGE ] && abort "! Unable to detect target image"
ui_print "- Target image: $BOOTIMAGE"
# Detect version and architecture
api_level_arch_detect
[ $API -lt 17 ] && abort "! Magisk is only for Android 4.2 and above"
ui_print "- Device platform: $ARCH"
BINDIR=$INSTALLER/$ARCH32
chmod -R 755 $CHROMEDIR $BINDIR
# Check if system root is installed and remove
remove_system_su
##########################################################################################
# Environment
##########################################################################################
ui_print "- Constructing environment"
# Copy required files
rm -rf $MAGISKBIN/* 2>/dev/null
mkdir -p $MAGISKBIN 2>/dev/null
cp -af $BINDIR/. $COMMONDIR/. $CHROMEDIR $BBDIR/busybox $MAGISKBIN
chmod -R 755 $MAGISKBIN
# addon.d
if [ -d /system/addon.d ]; then
ui_print "- Adding addon.d survival script"
mount -o rw,remount /system
ADDOND=/system/addon.d/99-magisk.sh
cat <<EOF > $ADDOND
#!/sbin/sh
# ADDOND_VERSION=2
if [ -f /data/adb/magisk/addon.d.sh ]; then
exec sh /data/adb/magisk/addon.d.sh "\$@"
else
OUTFD=\$(ps | grep -v 'grep' | grep -oE 'update(.*)' | cut -d" " -f3)
ui_print() { echo -e "ui_print \$1\nui_print" >> /proc/self/fd/\$OUTFD; }
ui_print "************************"
ui_print "* Magisk addon.d failed"
ui_print "************************"
ui_print "! Cannot find Magisk binaries - was data wiped or not decrypted?"
ui_print "! Reflash OTA from decrypted recovery or reflash Magisk"
fi
EOF
chmod 755 $ADDOND
fi
$BOOTMODE || recovery_actions
##########################################################################################
# Boot patching
##########################################################################################
eval $BOOTSIGNER -verify < $BOOTIMAGE && BOOTSIGNED=true
$BOOTSIGNED && ui_print "- Boot image is signed with AVB 1.0"
SOURCEDMODE=true
cd $MAGISKBIN
$IS64BIT && mv -f magiskinit64 magiskinit || rm -f magiskinit64
# Source the boot patcher
. ./boot_patch.sh "$BOOTIMAGE"
ui_print "- Flashing new boot image"
if ! flash_image new-boot.img "$BOOTIMAGE"; then
ui_print "- Compressing ramdisk to fit in partition"
./magiskboot cpio ramdisk.cpio compress
./magiskboot repack "$BOOTIMAGE"
flash_image new-boot.img "$BOOTIMAGE" || abort "! Insufficient partition size"
fi
./magiskboot cleanup
rm -f new-boot.img
if [ -f stock_boot* ]; then
rm -f /data/stock_boot* 2>/dev/null
$DATA && mv stock_boot* /data
fi
$KEEPVERITY || patch_dtbo_image
if [ -f stock_dtbo* ]; then
rm -f /data/stock_dtbo* 2>/dev/null
$DATA && mv stock_dtbo* /data
fi
cd /
# Cleanups
$BOOTMODE || recovery_cleanup
rm -rf $TMPDIR
ui_print "- Done"
exit 0