diff --git a/seqs/kodi.sh b/seqs/kodi.sh
index 515b68a..8c3eb44 100644
--- a/seqs/kodi.sh
+++ b/seqs/kodi.sh
@@ -8,31 +8,31 @@ toolName="Kodi"
 toolUser="kodi"
 toolServiceFile="/etc/systemd/system/kodi.service"
 
-step_1_info() { echo "Installing $toolName via apt"; }
+step_1_info() { echo "Install $toolName via apt"; }
 step_1_alias() { ALIAS="install"; }
 step_1() {
-  apt update && apt install kodi
+  exe apt update && apt install kodi
 }
 
 step_2_info() { echo "Set localisation and keyboard layout"; }
 step_2() {
   echo "Goto \"Localisation Options\" in the following menu."
   read -p "Press ENTER to continue..."
-  raspi-config
+  exe raspi-config
   saveReturn $?
   endReturn
 }
 
-step_3_info() { echo "Adding $toolName user ($toolUser)"; }
+step_3_info() { echo "Add $toolName user ($toolUser)"; }
 step_3() {
-  id -u $toolUser >>/dev/null 2>&1
+  exe id -u $toolUser >>/dev/null 2>&1
   if [ $? -eq 0 ] ; then
     echo
     echo "User $toolUser exists."
     echo "Skipping user creation."
     return 0
   fi
-  adduser \
+  exe adduser \
     --disable-password \
     --gecos "User to run $toolName Media Center" \
     -G audio,video,plugdev,input,tty \
@@ -40,22 +40,22 @@ step_3() {
   saveReturn $?
   endReturn
   echo "User $toolUser details:"
-  id $tooLuser
+  exe id $tooLuser
 }
 
 
 step_4_info() { echo "Create systemd service"; }
 step_4() {
-  if [ -f "$toolServiceFile" ] ; then
-    mv "$toolServiceFile" "$toolServiceFile".bck
-    echo -e "\n[WARN] existing service file renamed to $toolServiceFile.bck"
-  fi
-  echo "$toolServiceContent" > "$toolServiceFile"
+  addConf "$toolServiceContent" "$toolServiceFile"
 
-  systemctl daemon reload
-  systemctl enable kodi.service
-  saveReturn $?
-  endReturn
+  if [ $? -eq 0 ] ; then
+    exe systemctl daemon reload
+    exe systemctl enable kodi.service
+    saveReturn $?
+    endReturn
+  else
+    echo "[ERROR] failed to setup systemd service"
+  fi
 }
 
 toolServiceContent="\
@@ -80,25 +80,33 @@ RestartSec = 15
 [Install]
 WantedBy = multi-user.target" 
 
-step_5_info() { echo "Enabling text input for USB keyboards within $toolName"; }
+step_5_info() { echo "Enable text input for USB keyboards within $toolName"; }
 step_5() {
   local udevFile="/etc/udev/rules.d/99-kodi.rules"
   local inputRule="KERNEL==\"tty[0-9]*\", GROUP=\"tty\", MODE=\"0660\""
-  if [ -f "$udevFile" ] ; then
-    echo "udev rule ($udevFile) already exists."
+
+  addConf "$inputRule" "$udevFile"
+}
+
+step_6_info() { echo "Increase raspberry pi GPU memory to 320"; }
+step_6() {
+  exe grep -e '^[ ]*gpu_mem' "$bootConfigLoc" >>/dev/null 2>&1
+  if [ -f "$bootConfigLoc" ] && [ $? -ne 0 ] ; then
+    # attach settings to raspberry boot configuration
+    exe mount -o remount,rw /boot
+    echo -n "Modifying boot configuration ... "
+    echo "$bootConfig" >> "$bootConfigLoc" && echo "ok"
+    exe mount -o remount,ro /boot
   else
-    echo "inputRule" >> udevFile
+    echo "[ERROR] modifying boot configuration. Kodi may not work properly"
   fi
 }
 
-step_6_info() { "Increase raspberry pi GPU memory to 320"; }
-step_6() {
-  local rpiBootConfig="/boot/config.txt"
-  echo "
-  # Modifications for $toolName
-  start_x=1
-  gpu_mem=320" >> $rpiBootConfig 
-}
+bootConfigLoc="/boot/config.txt"
+bootConfig="
+# Modifications for $toolName
+start_x=1
+gpu_mem=320" 
 
 step_7_info() { echo "Reboot is needed for all changes to take effect"; }
 step_7() {
@@ -113,7 +121,7 @@ step_7() {
       ;;
     *)
       echo
-      echo "To start $toolName anyway enter:"
+      echo "Start $toolName manually:"
       echo "service start kodi"
       ;;
   esac