testing/udev: moved from main

1 files changed, 29 insertions, 0 deletions

diff --git a/testing/udev/write_root_link_rule b/testing/udev/write_root_link_rule
new file mode 100755
index 0000000000..8eaea11769
--- /dev/null
+++ b/testing/udev/write_root_link_rule
@@ -0,0 +1,29 @@
+#!/bin/sh
+#
+# This script should run before doing udevtrigger at boot.
+# It will create a rule matching the device directory / is on, and
+# creating /dev/root symlink pointing on its device node.
+#
+# This is especially useful for hal looking at /proc/mounts containing
+# a line listing /dev/root as device:
+#   /dev/root / reiserfs rw 0 0
+# 
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation version 2 of the License.
+#
+# (c) 2007-2008 Matthias Schwarzott <zzam@gentoo.org>
+
+eval $(udevadm info --export --export-prefix="ROOT_" --device-id-of-file=/)
+
+[ $? = 0 ] || exit 0
+[ "$ROOT_MAJOR" = 0 ] && exit 0
+
+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}"
+