add else statement to armbian not found

installers/common.sh

@@ -93,9 +93,10 @@ function install_dependencies() {
 
 #If Armbian set network interfaces naming convention
 
-function common_interfaces () {
+function common_interfaces() {
-  if [ -f /boot/armbianEnv]; then
+  if [ -f /boot/armbianEnv.txt]; then
     sudo sed -i '1i extraargs=net.ifnames=0' /boot/armbianEnv.txt && install_log "armbianEnv patched"
+  else install_log "Armbian undetected no patching required"
   fi
 }