target/linux/rb532/base-files/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 > "$output"
  10         /sbin/patch-cmdline "$output" "$cmdline"
  11 }
  12
  13 fstype="$(mount | grep ' / ' | awk '$5 != "rootfs" {print $5}')"
  14 case "$fstype" in
  15         ext2|jffs2) echo "Copying from $fstype to yaffs2";;
  16         *) echo "Invalid filesystem."; exit 1;;
  17 esac
  18
  19 [ -d /tmp/cf2nand ] && {
  20         echo "/tmp/cf2nand already exists"
  21         exit 1
  22 }
  23
  24 mkdir /tmp/cf2nand
  25 mkdir /tmp/cf2nand/rootfs
  26 mount -t "$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 'rootfs')"
  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/cfa1 /tmp/cf2nand/p1/kernel "root=/dev/mtdblock1 rootfstype=yaffs2 init=/etc/preinit " 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 echo "chmod ugo+x /" > /tmp/cf2nand/p2/etc/uci-defaults/set_root_permission
  55 sync
  56 # Use kexec is present
  57 [ -x /usr/bin/kexec ] && {
  58         kexec -l /tmp/cf2nand/p1/kernel --command-line="$(cat /proc/cmdline) root=/dev/mtdblock1 rootfstype=yaffs2 init=/etc/preinit"
  59         kexec -e
  60 }
  61 umount /tmp/cf2nand/p2
  62 rmdir /tmp/cf2nand/p2
  63
  64 umount /tmp/cf2nand/rootfs
  65 rmdir /tmp/cf2nand/rootfs
  66 rmdir /tmp/cf2nand
  67