add preinit modularization work by Daniel Dickinson (cshore)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19331 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/base-files/files/sbin/mount_root

@@ -1,25 +1,26 @@
 #!/bin/sh
-# Copyright (C) 2006 OpenWrt.org
-. /etc/functions.sh
+# Copyright (C) 2006-2010 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
 
-jffs2_ready () {
-	mtdpart="$(find_mtd_part rootfs_data)"
-	magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')
-	[ "$magic" != "deadc0de" ]
+# Initialize hook variables et by pulling in from preinit
+
+preinit_essential_hook=
+preinit_main_hook=
+failsafe_hook=
+initramfs_hook=
+preinit_mount_root=
+
+. /lib/functions/boot.sh
+
+for pi_source_file in /lib/preinit/*; do
+    . $pi_source_file
+done
+
+# Override function that doesn't apply to use of mount_root as a command rather
+# than as part of preinit
+
+preinit_echo() {
+    echo "$@"
 }
 
-grep rootfs_data /proc/mtd >/dev/null 2>/dev/null && {
-	. /sbin/firstboot
-	mtd unlock rootfs_data
-	jffs2_ready && {
-		echo "switching to jffs2"
-		mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2 && \
-			fopivot /jffs /rom
-	} || {
-		echo "jffs2 not ready yet; using ramdisk"
-		ramoverlay
-	}
-} || {
-	mtd unlock rootfs
-	mount -o remount,rw /dev/root /
-}
+boot_run_hook mount_root