util-yaml: only write displaymanager.conf if unpackfs true and netinstall false; this should enable CAL fallback detection for netinstall

lib/util-yaml.sh

@@ -139,6 +139,7 @@ write_services_conf(){
 
 write_displaymanager_conf(){
     local conf="${modules_dir}/displaymanager.conf"
+    if ${unpackfs} && ! ${netinstall};then
         msg2 "Writing %s ..." "${conf##*/}"
         echo "---" > "$conf"
         echo "displaymanagers:" >> "$conf"
@@ -151,6 +152,7 @@ write_displaymanager_conf(){
         fi
         echo '' >> "$conf"
         echo "basicSetup: false" >> "$conf"
+    fi
 }
 
 write_initcpio_conf(){