Index: ipk/source/fonts_default_1_0/CONTROL/preinst
===================================================================
--- ipk/source/fonts_default_1_0/CONTROL/preinst	(revision 11448)
+++ ipk/source/fonts_default_1_0/CONTROL/preinst	(revision 11791)
@@ -31,5 +31,16 @@
 		echo ok
 	fi
-fi   
+fi  
+
+buildgroup=`cat /etc/.buildgroup`
+echo "checking OS"	 
+if  [ `cat /etc/motd | grep $buildgroup | grep M | grep rev | wc -l` -eq 0 ]; then 	 	 
+	echo --------------------------- 	 	 
+	echo DONT USE this IPK Package!! 	 	 
+	echo --- 	 	 
+	echo Only for $buildgroup Image!! 	 	 
+	echo --------------------------- 	 	 
+	exit 1 	 	 
+fi 
 
 echo "installing font..."