target/linux/adm5120/rb1xx/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 . /lib/functions.sh
  10
  11 [ -d /tmp/wget2nand-rootfs ] && {
  12         echo "/tmp/wget2nand-rootfs already exists"
  13         exit 1
  14 }
  15
  16 [ -d /tmp/wget2nand-kernel ] && {
  17         echo "/tmp/wget2nand-kernel already exists"
  18         exit 1
  19 }
  20
  21 # need to find the wget server from the command line
  22 url=$1
  23 [ -z "$url" ] && {
  24         echo "No URL specified for image TGZ"
  25         echo "Usage : $0 URL"
  26         exit 1
  27 }
  28
  29 # first get an address for br-lan using udhcpc
  30 killall udhcpc
  31 /sbin/udhcpc -i br-lan
  32
  33 mtd_kernel="$(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 echo "Erasing filesystem..."
  41 mtd erase kernel 2>/dev/null >/dev/null
  42 mtd erase rootfs 2>/dev/null >/dev/null
  43
  44 echo "Mounting $mtd_rootfs as new root and $mtd_kernel as kernel partition"
  45
  46 mkdir /tmp/wget2nand-rootfs
  47 mkdir /tmp/wget2nand-kernel
  48 mount -t yaffs2 "$mtd_rootfs" /tmp/wget2nand-rootfs
  49 mount -t yaffs2 "$mtd_kernel" /tmp/wget2nand-kernel
  50
  51 echo "Erasing existing files..."
  52 rm -rf /tmp/wget2nand-rootfs/*
  53
  54 echo "Copying filesystem..."
  55 ( wget -O - $url/openwrt-adm5120-rb1xx-rootfs.tar.gz) | ( cd /tmp/wget2nand-rootfs/; tar xvz )
  56 # RouterBOOT is looking for a kernel named "kernel"
  57 wget -O /tmp/wget2nand-kernel/kernel $url/openwrt-adm5120-rb1xx-vmlinux.elf
  58
  59 chmod +x /tmp/wget2nand-kernel/kernel
  60
  61 # make sure everything is written before we unmount the partitions
  62 echo "chmod ugo+x /" > /tmp/wget2nand-rootfs/etc/uci-defaults/set_root_permission
  63 sync
  64 ls /tmp/wget2nand-kernel/
  65 ls /tmp/wget2nand-rootfs/
  66 # use kexec if present
  67 [ -x /usr/sbin/kexec ] && {
  68         kexec -l /tmp/wget2nand-kernel/kernel --command-line="$(cat /proc/cmdline) rootfstype=yaffs2 root=$mtd_kernel"
  69         kexec -e
  70 }
  71 # unmount the partitions and remove the directories into which they were mounted
  72 umount /tmp/wget2nand-kernel
  73 umount /tmp/wget2nand-rootfs
  74 rmdir /tmp/wget2nand-kernel
  75 rmdir /tmp/wget2nand-rootfs
  76
  77 # all done
  78 echo "Image written, you can now reboot.  Remember to change the boot source to Boot from Nand"