diff --git a/configure-system b/configure-system
new file mode 100755
index 0000000..91c36e3
--- /dev/null
+++ b/configure-system
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+# configure extra system things like lightdm, etc.
\ No newline at end of file
diff --git a/get-sudo-password b/get-sudo-password
index 1bce4c8..eeaacd7 100755
--- a/get-sudo-password
+++ b/get-sudo-password
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 file=/tmp/sudo-password
 
diff --git a/setup b/setup
index ee86568..48492dc 100755
--- a/setup
+++ b/setup
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 #-----------------------------------
 # Name:     setup
diff --git a/system-check b/system-check
index 8e8d3ce..0ac4796 100755
--- a/system-check
+++ b/system-check
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 #-----------------------------------
 # Name:     system-check