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

   1 #!/bin/sh
   2 # wget2nand
   3 # This script can be used to download a TGZ file from your build system which
   4 # contains the files to be installed on the NAND flash on your RB1xx card.
   5 # The one parameter is the URL of the TGZ file to be downloaded.
   6 # Licence GPL V2
   7 # Author david.goodenough@linkchoose.co.uk
   8 # Based on cf2nand from RB532 support
   9 . /etc/functions.sh
  10
  11 wget2nand_dir=/tmp/wget2nand
  12 mnt_kernel=$wget2nand_dir/mnt_kernel
  13 mnt_rootfs=$wget2nand_dir/mnt_rootfs
  14 src_rootfs=$wget2nand_dir/rootfs.tgz
  15 src_kernel=$wget2nand_dir/kernel
  16
  17 [ -d "$wget2nand_dir" ] && {
  18         echo "$wget2nand_dir already exists"
  19         exit 1
  20 }
  21
  22 # need to find the wget server from the command line
  23 url=$1
  24 [ -z "$url" ] && {
  25         echo "No URL specified for image TGZ"
  26         echo "Usage : $0 URL"
  27         exit 1
  28 }
  29
  30 url_kernel=$url/openwrt-ar71xx-vmlinux.elf
  31 url_rootfs=$url/openwrt-ar71xx-rootfs.tgz
  32
  33 mtd_kernel="$(find_mtd_part 'kernel')"
  34 mtd_rootfs="$(find_mtd_part 'rootfs')"
  35 [ -z "$mtd_kernel" -o -z "$mtd_rootfs" ] && {
  36         echo "Cannot find NAND Flash partitions"
  37         exit 1
  38 }
  39
  40 # first get an address for br-lan using udhcpc
  41 killall udhcpc
  42 /sbin/udhcpc -i br-lan
  43
  44 mkdir "$wget2nand_dir"
  45 wget $url_kernel -O "$src_kernel" || {
  46         echo "Unable to download $url_kernel"
  47         exit 1
  48 }
  49
  50 wget $url_rootfs -O "$src_rootfs" || {
  51         echo "Unable to download $url_rootfs"
  52         exit 1
  53 }
  54
  55 echo "Erasing filesystem..."
  56 mtd erase kernel 2>/dev/null >/dev/null
  57 mtd erase rootfs 2>/dev/null >/dev/null
  58
  59 echo "Mounting $mtd_rootfs as new root and $mtd_kernel as kernel partition"
  60
  61 mkdir "$mnt_kernel"
  62 mkdir "$mnt_rootfs"
  63 mount -t yaffs2 "$mtd_kernel" "$mnt_kernel"
  64 mount -t yaffs2 "$mtd_rootfs" "$mnt_rootfs"
  65
  66 echo "Copying kernel..."
  67 cp $src_kernel $mnt_kernel/kernel
  68 chmod +x $mnt_kernel/kernel
  69
  70 echo "Preparing filesystem..."
  71 ( cd "$mnt_rootfs"; tar xvz -f "$src_rootfs" )
  72
  73 # make sure everything is written before we unmount the partitions
  74 echo "chmod ugo+x /" > $mnt_rootfs/etc/uci-defaults/set_root_permission
  75 sync
  76 ls $mnt_kernel >/dev/null
  77 ls $mnt_rootfs >/dev/null
  78
  79 echo "Cleaning up..."
  80 # unmount the partitions and remove the directories into which they were mounted
  81 umount $mnt_kernel
  82 umount $mnt_rootfs
  83 rm -rf $wget2nand_dir
  84
  85 # all done
  86 echo "Image written, you can now reboot.  Remember to change the boot source to Boot from Nand"