package/base-files/rb532-2.6/sbin/cf2nand

   1 #!/bin/sh
   2 . /etc/functions.sh
   3
   4 copy_kernel() {
   5         local input="$1"
   6         local output="$2"
   7         local cmdline="$3"
   8         size="$(echo -n "$cmdline" | wc -c)"
   9         dd if="$input" bs=3M count=1 | (
  10                 dd bs=4112 count=1
  11                 echo -n "$cmdline"
  12                 dd if=/dev/zero bs="$((512 - $size))" count=1
  13                 dd bs=512 count=1 of=/dev/null
  14                 cat
  15         ) > "$output"
  16 }
  17
  18 fstype="$(mount | grep ' / ' | awk '{print $5}')"
  19 [ -d /tmp/cf2nand ] && {
  20         echo "/tmp/cf2nand already exists"
  21         exit 1
  22 }
  23
  24 mkdir /tmp/cf2nand
  25 mkdir /tmp/cf2nand/rootfs
  26 mount -t "$fstype" /dev/root /tmp/cf2nand/rootfs || {
  27         echo "Mounting rootfs failed."
  28         exit 1
  29 }
  30
  31 boot="$(find_mtd_part 'RouterBoard NAND Boot')"
  32 main="$(find_mtd_part 'RouterBoard NAND Main')"
  33 [ -z "$boot" -o -z "$main" ] && {
  34         echo "Cannot find NAND Flash partitions"
  35         exit 1
  36 }
  37
  38 echo "Erasing filesystem..."
  39 mtd erase Boot 2>/dev/null >/dev/null
  40 mtd erase Main 2>/dev/null >/dev/null
  41
  42 mkdir /tmp/cf2nand/p1
  43 mkdir /tmp/cf2nand/p2
  44 mount -t yaffs2 "$boot" /tmp/cf2nand/p1
  45 mount -t yaffs2 "$main" /tmp/cf2nand/p2
  46
  47 echo "Copying kernel..."
  48 copy_kernel /dev/cf/card0/part1 /tmp/cf2nand/p1/kernel "root=/dev/mtdblock1 rootfstype=yaffs2 " 2>/dev/null >/dev/null
  49 umount /tmp/cf2nand/p1
  50 rmdir /tmp/cf2nand/p1
  51
  52 echo "Copying filesystem..."
  53 ( cd /tmp/cf2nand/rootfs; tar c . ) | ( cd /tmp/cf2nand/p2; tar x )
  54 sync
  55 umount /tmp/cf2nand/p2
  56 rmdir /tmp/cf2nand/p2
  57
  58 umount /tmp/cf2nand/rootfs
  59 rmdir /tmp/cf2nand/rootfs
  60 rmdir /tmp/cf2nand
  61