init: added helper to mount rootfs (rc.trymount)

initramfs/etc_rc.d_rc.trymount.sh

@@ -0,0 +1,41 @@
+#!/bin/sh
+# --- SDE-COPYRIGHT-NOTE-BEGIN ---
+# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
+#
+# Filename: target/idunn/initramfs/etc_rc.d_rc.trymount.sh
+# Copyright (C) 2008 The OpenSDE Project
+#
+# More information can be found in the files COPYING and README.
+#
+# 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. A copy of the
+# GNU General Public License can be found in the file COPYING.
+# --- SDE-COPYRIGHT-NOTE-END ---
+
+. /etc/rc.d/functions.in
+. /etc/conf/idunn
+
+if grep -q "^[^ ]* $rootfs " /proc/mounts; then
+	title "Remounting $rootfs as $root_mode."
+	check mount -o remount,$root_mode $rootfs
+	status
+elif [ -n "$root" ]; then
+	title "Mouting $root at $rootfs."
+	check /lib/udev/vol_id "$root" > /tmp/vol_id.$$
+	. /tmp/vol_id.$$
+	rm -f /tmp/vol_id.$$
+
+	if [ -n "$ID_FS_TYPE" ]; then
+		modprobe -q "$ID_FS_TYPE"
+		check mount -t "$ID_FS_TYPE" -o "$root_mode" "$root" "$rootfs"
+	else
+		check false
+	fi
+
+	status	
+else
+	error=1
+fi
+
+exit ${error:-0}