--- trunk/udev/write_root_link_rule.sh	2008/03/22 18:13:36	516
+++ trunk/udev/write_root_link_rule.sh	2008/12/22 20:30:09	716
@@ -1,5 +1,5 @@
 #!/bin/sh
-# $Header: /root/magellan-cvs/src/udev/write_root_link_rule.sh,v 1.1 2008-03-22 18:13:36 niro Exp $
+# $Header: /root/magellan-cvs/src/udev/write_root_link_rule.sh,v 1.2 2008-12-22 20:30:09 niro Exp $
 #
 # This script should run before doing udevtrigger at boot.
 # It will create a rule matching the device directory / is on, and
@@ -13,17 +13,17 @@
 # under the terms of the GNU General Public License as published by the
 # Free Software Foundation version 2 of the License.
 #
-# (c) 2007 Matthias Schwarzott <zzam@gentoo.org>
+# (c) 2007-2008 Matthias Schwarzott <zzam@gentoo.org>
 
-DEV=$(udevadm info --device-id-of-file=/)
-if [ $? = 0 ]; then
-	MAJOR="${DEV% *}"
-	MINOR="${DEV#* }"
+eval $(udevadm info --export --export-prefix="ROOT_" --device-id-of-file=/)
 
-	[ -d /dev/.udev/rules.d ] || mkdir -p /dev/.udev/rules.d
-	RULES=/dev/.udev/rules.d/10-root-link.rules
+[ $? = 0 ] || exit 0
+[ "$ROOT_MAJOR" = 0 ] && exit 0
 
-	echo "# Created by /lib/udev/write_root_link_rule" > "${RULES}"
-	echo "# This rule should create /dev/root as link to real root device." >> "${RULES}"
-	echo "SUBSYSTEM==\"block\", ENV{MAJOR}==\"$MAJOR\", ENV{MINOR}==\"$MINOR\", SYMLINK+=\"root\"" >> "${RULES}"
-fi
+DIR=/dev/.udev/rules.d
+[ -d "$DIR" ] || mkdir -p "$DIR"
+RULES=$DIR/10-root-link.rules
+
+echo "# Created by /lib/udev/write_root_link_rule" > "${RULES}"
+echo "# This rule should create /dev/root as link to real root device." >> "${RULES}"
+echo "SUBSYSTEM==\"block\", ENV{MAJOR}==\"$ROOT_MAJOR\", ENV{MINOR}==\"$ROOT_MINOR\", SYMLINK+=\"root\"" >> "${RULES}"