path: root/update_engine.rc

service update_engine /system/bin/update_engine --logtostderr --logtofile --foreground
    class late_start
    user root
    group root system wakelock inet cache media_rw
    writepid /dev/cpuset/system-background/tasks /dev/blkio/background/tasks
    disabled

on property:ro.boot.slot_suffix=*
    enable update_engine