From 75eea7d5aa6a7eb69fd842e376932fbf45423228 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Sun, 7 May 2017 22:48:44 -0500
Subject: Error if we can't autodetect filesystem type.

---
 toys/lsb/mount.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/toys/lsb/mount.c b/toys/lsb/mount.c
index 525d0ab1..daf2edca 100644
--- a/toys/lsb/mount.c
+++ b/toys/lsb/mount.c
@@ -179,7 +179,10 @@ static void mount_filesystem(char *dev, char *dir, char *type,
     if (fp && !buf) {
       size_t i;
 
-      if (getline(&buf, &i, fp)<0) break;
+      if (getline(&buf, &i, fp)<0) {
+        error_msg("%s: need -t", dev);
+        break;
+      }
       type = buf;
       // skip nodev devices
       if (!isspace(*type)) {
-- 
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