Don't initially change network settings for generic image

src/freedombone-image-customise

@@ -97,7 +97,8 @@ EOF
 }
 
 configure_networking() {
-    echo "# This file describes the network interfaces available on your system
+	if [[ $GENERIC_IMAGE == "no" ]]; then
+        echo "# This file describes the network interfaces available on your system
 # and how to activate them. For more information, see interfaces(5).
 
 # The loopback network interface
@@ -133,14 +134,15 @@ iface eth0 inet static
 #    network 192.168.7.0
 #    gateway 192.168.7.1" > $rootdir/etc/network/interfaces
 
-    hexarray=( 1 2 3 4 5 6 7 8 9 0 a b c d e f )
-    a=${hexarray[$RANDOM%16]}${hexarray[$RANDOM%16]}
-    b=${hexarray[$RANDOM%16]}${hexarray[$RANDOM%16]}
-    c=${hexarray[$RANDOM%16]}${hexarray[$RANDOM%16]}
-    d=${hexarray[$RANDOM%16]}${hexarray[$RANDOM%16]}
-    e=${hexarray[$RANDOM%16]}${hexarray[$RANDOM%16]}
-    sed -i "s|#hwaddress ether.*|hwaddress ether de:$a:$b:$c:$d:$e|g" \
-        $rootdir/etc/network/interfaces
+        hexarray=( 1 2 3 4 5 6 7 8 9 0 a b c d e f )
+        a=${hexarray[$RANDOM%16]}${hexarray[$RANDOM%16]}
+        b=${hexarray[$RANDOM%16]}${hexarray[$RANDOM%16]}
+        c=${hexarray[$RANDOM%16]}${hexarray[$RANDOM%16]}
+        d=${hexarray[$RANDOM%16]}${hexarray[$RANDOM%16]}
+        e=${hexarray[$RANDOM%16]}${hexarray[$RANDOM%16]}
+        sed -i "s|#hwaddress ether.*|hwaddress ether de:$a:$b:$c:$d:$e|g" \ 
+            $rootdir/etc/network/interfaces
+	fi
 
     sed -i "s/nameserver.*/nameserver $NAMESERVER1/g" $rootdir/etc/resolv.conf
     sed -i "/nameserver $NAMESERVER1/a\nameserver $NAMESERVER2" $rootdir/etc/resolv.conf