From 9e5324f327bbeb7ef34c2f2d6a5b85e9fc748b4e Mon Sep 17 00:00:00 2001
From: Richard Goodwin <github@richardgoodwin.com>
Date: Tue, 30 Oct 2018 15:18:23 -0500
Subject: [PATCH] Missed a default variable setting

I hate this whole unbound variable protection mode, but it sure does catch bugs. :)
---
 setup/pi/create-backingfiles-partition.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/setup/pi/create-backingfiles-partition.sh b/setup/pi/create-backingfiles-partition.sh
index 0849974..170c873 100644
--- a/setup/pi/create-backingfiles-partition.sh
+++ b/setup/pi/create-backingfiles-partition.sh
@@ -1,5 +1,7 @@
 #!/bin/bash -eu
 
+HEADLESS_SETUP=${HEADLESS_SETUP:-false}
+
 function setup_progress () {
   SETUP_LOGFILE=/boot/teslausb-headless-setup.log
   if [ $HEADLESS_SETUP = "true" ]