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=$url/openwrt-ar71xx-rootfs.tar.gz
  32
  33 mtd_kernel="$(find_mtd_part 'kernel')"
  34 mtd_rootfs="$(find_mtd_part 'rootfs')"
  35 [ -z "$mtd_kernel" -o -z "$mtd_rootfs" ] && {
  36         echo "Cannot find NAND Flash partitions"
  37         exit 1
  38 }
  39
  40 mkdir "$wget2nand_dir"
  41 wget $url_kernel -O "$src_kernel" || {
  42         echo "Unable to download $url_kernel"
  43         exit 1
  44 }
  45
  46 wget $url_rootfs -O "$src_rootfs" || {
  47         echo "Unable to download $url_rootfs"
  48         exit 1
  49 }
  50
  51 echo "Erasing filesystem..."
  52 mtd erase kernel 2>/dev/null >/dev/null
  53 mtd erase rootfs 2>/dev/null >/dev/null
  54
  55 echo "Mounting $mtd_rootfs as new root and $mtd_kernel as kernel partition"
  56
  57 mkdir "$mnt_kernel"
  58 mkdir "$mnt_rootfs"
  59 mount -t yaffs2 "$mtd_kernel" "$mnt_kernel"
  60 mount -t yaffs2 "$mtd_rootfs" "$mnt_rootfs"
  61
  62 echo "Copying kernel..."
  63 cp $src_kernel $mnt_kernel/kernel || {
  64        echo "Error occured while copying the kernel"
  65        exit 1
  66 }
  67 chmod +x $mnt_kernel/kernel
  68
  69 echo "Preparing filesystem..."
  70 ( cd "$mnt_rootfs"; tar xvz -f "$src_rootfs" )
  71
  72 # make sure everything is written before we unmount the partitions
  73 echo "chmod ugo+x /" > $mnt_rootfs/etc/uci-defaults/set_root_permission
  74 sync
  75 ls $mnt_kernel >/dev/null
  76 ls $mnt_rootfs >/dev/null
  77
  78 echo "Cleaning up..."
  79 # unmount the partitions and remove the directories into which they were mounted
  80 umount $mnt_kernel
  81 umount $mnt_rootfs
  82 rm -rf $wget2nand_dir
  83
  84 # all done
  85 echo "Image written, you can now reboot.  Remember to change the boot source to Boot from Nand"