initramfs: improved sysinit.rc.sh to use devtmpfs if possible

initramfs/etc_rc.d_rc.sysinit.sh

@@ -3,7 +3,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: target/idunn/initramfs/etc_rc.d_rc.sysinit.sh
-# Copyright (C) 2008 - 2009 The OpenSDE Project
+# Copyright (C) 2008 - 2011 The OpenSDE Project
 #
 # More information can be found in the files COPYING and README.
 #
@@ -67,11 +67,22 @@ init="${init:-/sbin/init}"
 initopt="$*"
 EOT
 
-title "Preparing /dev"
-check mount -n -t tmpfs udev /dev
+if grep -q devtmpfs /proc/filesystems; then
+	title "Preparing /dev (devtmpfs)"
+	check mount -n -t devtmpfs devtmpfs /dev
+	status
+else
+	title "Preparing /dev (tmpfs)"
+	check mount -n -t tmpfs udev /dev
+	status
+	check cp -a /lib/udev/devices/* /dev
+	status
+fi
+
+title "Preparing /dev/pts"
 check mkdir /dev/pts
+status
 check mount -n -t devpts devpts /dev/pts
-check cp -a /lib/udev/devices/* /dev
 status
 
 title "Starting supervisor"