* util/grub-install.in: Ignore empty devicetree directory.

ChangeLog

@@ -1,3 +1,7 @@
+2012-05-08  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* util/grub-install.in: Ignore empty devicetree directory.
+
 2012-05-08  Bean  <bean123ch@gmail.com>
 
 	* grub-core/net/ip.c (reassemble): Make asm_buffer into asm_netbuff.

util/grub-install.in

@@ -311,7 +311,12 @@ if [ x$source_dir = x ]; then
 		if [ -d /sys/firmware/efi ]; then
 		    target="i386-efi"
 		elif [ -e /proc/device-tree ]; then
+		    target=i386-pc
+		    for x in /proc/device-tree/*; do
+			if [ -e "$x" ]; then
 			    target="i386-ieee1275"
+			fi
+		    done
 		else
 		    target=i386-pc
 		fi