diff --git a/live_exam_os/build.sh b/live_exam_os/build.sh
index 08708cb89019edecee1fff7623716088f754ebc9..60f92202cf65a57c8e586db24ff7b482010c62fd 100755
--- a/live_exam_os/build.sh
+++ b/live_exam_os/build.sh
@@ -261,7 +261,8 @@ fi
 
 echo "[Post-install...]"
 for script in config/03-post_install/*.sh; do
-  ./"$script"
+  echo " [Running $script...]"
+  run_command "$script"
 done
 
 echo "[Moving kernel...]"
diff --git a/live_exam_os/config/03-post_install/9999-cleanup.sh b/live_exam_os/config/03-post_install/9000-cleanup.sh
similarity index 100%
rename from live_exam_os/config/03-post_install/9999-cleanup.sh
rename to live_exam_os/config/03-post_install/9000-cleanup.sh
diff --git a/live_exam_os/config/03-post_install/4000-firewall.sh b/live_exam_os/config/03-post_install/9999-firewall.sh
similarity index 100%
rename from live_exam_os/config/03-post_install/4000-firewall.sh
rename to live_exam_os/config/03-post_install/9999-firewall.sh