Can't run customised service at file init.rc when booting android.

Hi All!

I'm working on android 4.2.2 with jorjin racoon board. I have a question regrading to file init.rc.

I created a new service at the end of file  init.rc like the following:

service testmounter /system/bin/logwrapper /system/bin/mounter.sh
    class main
    user root
    group root
    oneshot

File mounter.sh likes the following:

#! /system/bin/sh
echo "Start Mounter"
/system/bin/am start -a android.intent.action.MAIN -n com.paragon.mounter/.Mounter

I changed mode mounter.sh to 765.

But I don't know why my service not run when booting android.

Looking forward for the suggestions.

Thanks