warn of unsupported os

setup/so-setup

@@ -64,6 +64,14 @@ done
 
 # Let's see what OS we are dealing with here
 detect_os
+if [[ $not_supported ]]; then
+	if (whiptail_unsupported_os_warning); then
+		true
+	else
+		info "User cancelled setup."
+		whiptail_cancel
+	fi
+fi
 
 # Check to see if this is the setup type of "desktop".
 is_desktop=