2002-05-20 Yoshinori K. Okuji <okuji@enbug.org>

* lib/device.c (read_device_map): Show an error message and exit
	abnormally, if MAP[DRIVE] has already been filled.
	* util/grub-install.in: If there is any dulicated entry, print
	an error message and exit abnormally.

util/grub-install.in

@@ -323,6 +323,14 @@ EOF
     rm -f $log_file
 fi
 
+# Make sure that there is no duplicated entry.
+tmp=`sed -n '/^([fh]d[0-9]*)/s/\(^(.*)\).*/\1/p' $device_map \
+    | sort | uniq -d | sed -n 1p`
+if test -n "$tmp"; then
+    echo "The drive $tmp is defined multiple times in the device map $device_map" 1>&2
+    exit 1
+fi
+
 # Check for INSTALL_DEVICE.
 case "$install_device" in
 /dev/*)