udev: add initramfs-tools, update depends.

--HG--
extra : convert_revision : 2450b2c23182dd801dedb579b86ae3e40c3abdb9

templates/udev/udev.initramfs-bottom

@@ -0,0 +1,28 @@
+#!/bin/sh -e
+# initramfs premount script for udev
+
+PREREQ=""
+
+# Output pre-requisites
+prereqs()
+{
+	echo "$PREREQ"
+}
+
+case "$1" in
+    prereqs)
+	prereqs
+	exit 0
+	;;
+esac
+
+
+# Stop udevd, we'll miss a few events while we run init, but we catch up
+pkill udevd
+
+# udevd might have been in the middle of something when we killed it,
+# but it doesn't matter because we'll do everything again in userspace
+rm -rf /dev/.udev/queue
+
+# Move /dev to the real filesystem
+mount -n -o move /dev ${rootmnt}/dev