diff --git a/oamapps/postConfigure/quick_installer_amazon.sh b/oamapps/postConfigure/quick_installer_amazon.sh
old mode 100644
new mode 100755
index f867aa5a9..c71dc8920
--- a/oamapps/postConfigure/quick_installer_amazon.sh
+++ b/oamapps/postConfigure/quick_installer_amazon.sh
@@ -33,6 +33,7 @@ for arg in "$@"; do
 		echo "--um-count=x Number of um instances to create, optional"
 		echo "--system-name=nnnn System Name, optional"
 		echo ""
+		exit 1
 	else
 		echo "./quick_installer_amazon.sh: unknown argument: $arg, enter --help for help" 1>&2
 		exit 1
diff --git a/oamapps/postConfigure/quick_installer_multi_server.sh b/oamapps/postConfigure/quick_installer_multi_server.sh
old mode 100644
new mode 100755
index 239fca1e9..25d615d7e
--- a/oamapps/postConfigure/quick_installer_multi_server.sh
+++ b/oamapps/postConfigure/quick_installer_multi_server.sh
@@ -37,6 +37,7 @@ for arg in "$@"; do
 		echo "--dist-install Use Distributed Install, optional"
 		echo "--system-name=nnnn System Name, optional"
 		echo ""
+		exit 1
 	else
 		echo "quick_installer_multi_server.sh: unknown argument: $arg, enter --help for help" 1>&2
 		exit 1
diff --git a/oamapps/postConfigure/quick_installer_single_server.sh b/oamapps/postConfigure/quick_installer_single_server.sh
old mode 100644
new mode 100755
index bfd9b81c4..2603bcec8
--- a/oamapps/postConfigure/quick_installer_single_server.sh
+++ b/oamapps/postConfigure/quick_installer_single_server.sh
@@ -10,6 +10,7 @@ for arg in "$@"; do
 		echo ""
 		echo "Quick Installer for a Single Server MariaDB ColumnStore Install"
 		echo ""
+		exit 1
 	else
 		echo "quick_installer_multi_server.sh: ignoring unknown argument: $arg" 1>&2
 	fi