--- fwinst.sh	2018-08-29 21:19:46.814128288 +0200
+++ fwinst.sh	2018-08-29 21:19:19.714059624 +0200
@@ -19,7 +19,7 @@
 # (at your option) any later version.
 #
 
-export FW_PATH=/lib/firmware
+export FW_PATH=$1/usr/lib/firmware
 export FW_6FIRE_PATH=$FW_PATH/6fire
 cleanup() {
   rm -Rf /tmp/dmx
@@ -106,7 +106,7 @@
 fi
 
 step_begin "Installing firmware files"
-if ! mkdir -p $FW_6FIRE_PATH >/dev/null 2>&1 ; then
+if ! install -dm755 $FW_6FIRE_PATH >/dev/null 2>&1 ; then
   step_error "Creation of firmware path failed. Are you root?"
 fi