mkefidisk.sh: be more explicit with device error

* Specify whether the device can't be found or can't be written to
* Give a hint to use sudo

(From OE-Core rev: 92b58e1c789ee412d936285144e8e549c99ff979)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/scripts/contrib/mkefidisk.sh b/scripts/contrib/mkefidisk.sh
index d6bc965137..55f72b0f54 100755
--- a/scripts/contrib/mkefidisk.sh
+++ b/scripts/contrib/mkefidisk.sh
@@ -173,7 +173,11 @@ fi
 
 if [ ! -w "$DEVICE" ]; then
         usage
-        die "Device $DEVICE does not exist or is not writable"
+        if [ ! -e "${DEVICE}" ] ; then
+                die "Device $DEVICE cannot be found"
+        else
+                die "Device $DEVICE is not writable (need to run under sudo?)"
+        fi
 fi
 
 if [ ! -e "$HDDIMG" ]; then