[OE-core] [PATCH 1/2] initramfs-framework: udev: Handle alternative binary paths

[Otavio Salvador]

This allows use of udev daemon for different installation destinations
so allowing use of udev's from systemd code for initramfs.

Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
---
 .../initrdscripts/initramfs-framework/udev         |   25 ++++++++++++++++----
 .../initrdscripts/initramfs-framework_1.0.bb       |    2 +-
 2 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/meta/recipes-core/initrdscripts/initramfs-framework/udev b/meta/recipes-core/initrdscripts/initramfs-framework/udev
index 15a1d5b..7fbcc61 100644
--- a/meta/recipes-core/initrdscripts/initramfs-framework/udev
+++ b/meta/recipes-core/initrdscripts/initramfs-framework/udev
@@ -1,10 +1,25 @@
 #!/bin/sh
-# Copyright (C) 2011 O.S. Systems Software LTDA.
+# Copyright (C) 2011, 2012 O.S. Systems Software LTDA.
 # Licensed on MIT
 
+udev_daemon() {
+	OPTIONS="/sbin/udevd /lib/udev/udevd /lib/systemd/systemd-udevd"
+
+	for o in $OPTIONS; do
+		if [ -x "$o" ]; then
+			echo $o
+			return 0
+		fi
+	done
+
+	return 1
+}
+
+_UDEV_DAEMON=`udev_daemon`
+
 udev_enabled() {
-	if [ ! -e /lib/udev/udevd ]; then
-		debug "/lib/udev/udev doesn't exist"
+	if [ -z "$_UDEV_DAEMON" ]; then
+		msg "WARNING: Cannot find the udev daemon; daemon will not be started in initramfs."
 		return 1
 	fi
 
@@ -14,9 +29,9 @@ udev_enabled() {
 udev_run() {
 	mkdir -p /run
 
-	/lib/udev/udevd --daemon > /dev/null
+	$_UDEV_DAEMON --daemon
 	udevadm trigger --action=add
 	udevadm settle
 
-	killall udevd 2>/dev/null
+	killall `basename $_UDEV_DAEMON` 2>/dev/null
 }
diff --git a/meta/recipes-core/initrdscripts/initramfs-framework_1.0.bb b/meta/recipes-core/initrdscripts/initramfs-framework_1.0.bb
index 45d6592..cbb4a39 100644
--- a/meta/recipes-core/initrdscripts/initramfs-framework_1.0.bb
+++ b/meta/recipes-core/initrdscripts/initramfs-framework_1.0.bb
@@ -3,7 +3,7 @@ LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
 RDEPENDS = "busybox"
 
-PR = "r1"
+PR = "r2"
 
 inherit allarch
 
-- 
1.7.10.4