From 34f51a0dcac5c444ed24c3b4ac73c1c6a2ddeb89 Mon Sep 17 00:00:00 2001
From: Michael Brown <mcb30@ipxe.org>
Date: Fri, 22 Jan 2021 18:29:01 +0000
Subject: [PATCH] [build] Fail gracefully when no input files are given to
 genfsimg

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---
 src/util/genfsimg | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/util/genfsimg b/src/util/genfsimg
index 85fb006c4..b30ffe44f 100755
--- a/src/util/genfsimg
+++ b/src/util/genfsimg
@@ -137,6 +137,11 @@ if [ -z "${OUTFILE}" ]; then
     exit 1
 fi
 shift $(( OPTIND - 1 ))
+if [ $# -eq 0 ] ; then
+    echo "${0}: no input files given" >&2
+    help
+    exit 1
+fi
 
 # Create temporary working directory
 #