[ar71xx] add wget2nand script

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12263 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ar71xx/base-files/sbin/wget2nand

@@ -0,0 +1,73 @@
+#!/bin/sh
+# wget2nand
+# This script can be used to download a TGZ file from your build system which
+# contains the files to be installed on the NAND flash on your RB1xx card.
+# The one parameter is the URL of the TGZ file to be downloaded.
+# Licence GPL V2
+# Author david.goodenough@linkchoose.co.uk
+# Based on cf2nand from RB532 support
+. /etc/functions.sh
+
+[ -d /tmp/wget2nand-rootfs ] && {
+	echo "/tmp/wget2nand-rootfs already exists"
+	exit 1
+}
+
+[ -d /tmp/wget2nand-kernel ] && {
+	echo "/tmp/wget2nand-kernel already exists"
+	exit 1
+}
+
+# need to find the wget server from the command line
+url=$1
+[ -z "$url" ] && {
+        echo "No URL specified for image TGZ"
+        echo "Usage : $0 URL"
+        exit 1
+}
+
+# first get an address for br-lan using udhcpc
+killall udhcpc
+/sbin/udhcpc -i br-lan
+
+mtd_kernel="$(find_mtd_part 'kernel')"
+mtd_rootfs="$(find_mtd_part 'rootfs')"
+[ -z "$mtd_kernel" -o -z "$mtd_rootfs" ] && {
+	echo "Cannot find NAND Flash partitions"
+	exit 1
+}
+
+echo "Erasing filesystem..."
+mtd erase kernel 2>/dev/null >/dev/null
+mtd erase rootfs 2>/dev/null >/dev/null
+
+echo "Mounting $mtd_rootfs as new root and $mtd_kernel as kernel partition"
+
+mkdir /tmp/wget2nand-rootfs
+mkdir /tmp/wget2nand-kernel
+mount -t yaffs2 "$mtd_rootfs" /tmp/wget2nand-rootfs
+mount -t yaffs2 "$mtd_kernel" /tmp/wget2nand-kernel
+
+echo "Erasing existing files..."
+rm -rf /tmp/wget2nand-rootfs/*
+
+echo "Copying filesystem..."
+( wget -O - $url/openwrt-ar71xx-rootfs.tgz) | ( cd /tmp/wget2nand-rootfs/; tar xvz )
+# RouterBOOT is looking for a kernel named "kernel"
+wget -O /tmp/wget2nand-kernel/kernel $url/openwrt-ar71xx-vmlinux.elf
+
+chmod +x /tmp/wget2nand-kernel/kernel
+
+# make sure everything is written before we unmount the partitions
+echo "chmod ugo+x /" > /tmp/wget2nand-rootfs/etc/uci-defaults/set_root_permission
+sync
+ls /tmp/wget2nand-kernel/
+ls /tmp/wget2nand-rootfs/
+# unmount the partitions and remove the directories into which they were mounted
+umount /tmp/wget2nand-kernel
+umount /tmp/wget2nand-rootfs
+rmdir /tmp/wget2nand-kernel
+rmdir /tmp/wget2nand-rootfs
+
+# all done
+echo "Image written, you can now reboot.  Remember to change the boot source to Boot from Nand"