Make prompt more obvious

make_ami.sh

@@ -156,6 +156,10 @@ install_core_packages() {
     # anyhow. With this configuration boot messages will still display in the
     # EC2 console.
     sed -Ei '/^tty\d/s/^/#/' /etc/inittab
+
+    # Make it a little more obvious who is logged in by adding username to the
+    # prompt
+    sed -i "s/^export PS1='/&\\\\u@/" /etc/profile
 }
 
 create_initfs() {