安装 magisk

magisk.rc

on post-fs
    mkdir /debug_ramdisk 0755 root root
    mount tmpfs tmpfs /debug_ramdisk mode=0755

on post-fs-data
    exec u:r:su:s0 root root -- /debug_ramdisk/magisk --stop
    exec u:r:su:s0 root root -- /system/bin/sh /data/adb/magisk_init.sh
    exec u:r:su:s0 root root -- /debug_ramdisk/magisk --post-fs-data

on boot
    exec u:r:su:s0 root root -- /debug_ramdisk/magisk --service

on property:sys.boot_completed=1
    exec u:r:su:s0 root root -- /debug_ramdisk/magisk --boot-complete

magisk_init.sh

#!/system/bin/sh
# Magisk 环境初始化脚本

# 设置环境变量
export PATH=/sbin:/system/bin:/system/xbin

# 确定 MAGISKTMP（根据 Android 版本）
if [ -d /debug_ramdisk ]; then
    export MAGISKTMP=/debug_ramdisk
elif [ -d /sbin ]; then
    export MAGISKTMP=/sbin
else
    echo "Error: Cannot determine MAGISKTMP location"
    exit 1
fi

log() {
    echo "[Magisk Init] $1"
    echo "[$(date)] $1" >> /data/local/tmp/magisk_init.log
}

log "Starting Magisk initialization"
log "MAGISKTMP=$MAGISKTMP"


MAGISKBIN="/data/adb/magisk"
if [ ! -f "$MAGISKBIN/magisk" ]; then
    log "Error: Magisk binary not found at $MAGISKBIN/magisk"
    exit 1
fi
chmod 755 -R $MAGISKBIN

log "Creating directory structure"
mkdir -p $MAGISKTMP/.magisk/device
mkdir -p $MAGISKTMP/.magisk/worker
chmod 755 $MAGISKTMP/.magisk
chmod 711 $MAGISKTMP/.magisk/device
chmod 000 $MAGISKTMP/.magisk/worker
mkdir -p /data/adb/modules
mkdir -p /data/adb/post-fs-data.d
mkdir -p /data/adb/service.d

log "Copying Magisk binaries"
for file in magisk magisk32 magiskpolicy busybox stub.apk; do
    if [ -f "$MAGISKBIN/$file" ]; then
        cp -af "$MAGISKBIN/$file" "$MAGISKTMP/$file"
        chmod 755 "$MAGISKTMP/$file"
        log "Copied $file"
    fi
done


log "Creating symbolic links"
ln -sf ./magisk $MAGISKTMP/su
ln -sf ./magisk $MAGISKTMP/resetprop
ln -sf ./magiskpolicy $MAGISKTMP/supolicy

log "Setting up worker directory"
if ! mount | grep -q "$MAGISKTMP/.magisk/worker"; then
    mount -t tmpfs -o 'mode=0755' magisk $MAGISKTMP/.magisk/worker
    mount --make-private $MAGISKTMP/.magisk/worker
fi



if [ -f "$MAGISKTMP/busybox" ]; then
    log "Setting up BusyBox"
    mkdir -p $MAGISKTMP/.magisk/busybox
    $MAGISKTMP/busybox --install -s $MAGISKTMP/.magisk/busybox
    export PATH=$MAGISKTMP/.magisk/busybox:$PATH
fi


log "Running preinit device"
MAKEDEV=1 $MAGISKTMP/magisk --preinit-device

log "Applying SELinux policy"
RULESCMD=""
rule="$MAGISKTMP/.magisk/preinit/sepolicy.rule"
[ -f "$rule" ] && RULESCMD="--apply $rule"

if [ -d /sys/fs/selinux ]; then
    if [ -f /vendor/etc/selinux/precompiled_sepolicy ]; then
        $MAGISKTMP/magiskpolicy --load /vendor/etc/selinux/precompiled_sepolicy \
                                --live --magisk $RULESCMD 2>&1
        log "Applied SELinux policy from vendor"
    elif [ -f /sepolicy ]; then
        $MAGISKTMP/magiskpolicy --load /sepolicy --live --magisk $RULESCMD 2>&1
        log "Applied SELinux policy from rootfs"
    else
        $MAGISKTMP/magiskpolicy --live --magisk $RULESCMD 2>&1
        log "Applied SELinux policy from kernel"
    fi
fi

log "Magisk initialization complete"
exit 0