refs #310 fix mac for array declaration

installer/ogboot_installer.sh

@@ -74,8 +74,8 @@ generate_ipxe_script() {
     sed "s/SERVERIP/$ip_address/g" "$template_default" > "$default_output"
 	echo "Creando ficheros MAC script"
     ls -lh 
-    echo $MAC_ADDRESSES
-    for mac_address in $MAC_ADDRESSES; do
+    echo ${MAC_ADDRESSES[@]}
+    for mac_address in "${MAC_ADDRESSES[@]}"; do
         mac_address_lower=$(echo "$mac_address" | tr '[:upper:]' '[:lower:]')
         filename="01-${mac_address_lower}"
         echo "Creando archivo $filename..."