target/linux/qualcommax/base-files/lib/upgrade/buffalo.sh

   1 . /lib/functions.sh
   2
   3 # Prepare UBI devices for OpenWrt installation
   4 # - rootfs (mtd22)
   5 #   - remove "ubi_rootfs" volume (rootfs on stock)
   6 #   - remove "fw_hash" volume (firmware hash)
   7 # - user_property (mtd24)
   8 #   - remove "user_property_ubi" volume (user configuration)
   9 #   - remove "extra_property" volume (gzipped syslog)
  10 buffalo_upgrade_prepare() {
  11         local ubi_rootdev ubi_propdev
  12
  13         if ! ubi_rootdev="$(nand_attach_ubi rootfs)" || \
  14            ! ubi_propdev="$(nand_attach_ubi user_property)"; then
  15                 echo "failed to attach UBI volume \"rootfs\" or \"user_property\", rebooting..."
  16                 reboot -f
  17         fi
  18
  19         ubirmvol /dev/$ubi_rootdev -N ubi_rootfs &> /dev/null || true
  20         ubirmvol /dev/$ubi_rootdev -N fw_hash &> /dev/null || true
  21
  22         ubirmvol /dev/$ubi_propdev -N user_property_ubi &> /dev/null || true
  23         ubirmvol /dev/$ubi_propdev -N extra_property &> /dev/null || true
  24 }
  25
  26 # Re-create small dummy ubi_rootfs volume and update
  27 # fw_hash volume to pass the checking by U-Boot
  28 # - rootfs (mtd22)
  29 #   - re-create "ubi_rootfs" volume
  30 #   - re-create and update "fw_hash" volume
  31 # - rootfs_recover (mtd23)
  32 #   - update "fw_hash" volume
  33 buffalo_upgrade_optvol() {
  34         local ubi_rootdev ubi_rcvrdev
  35         local hashvol_root hashvol_rcvr
  36
  37         if ! ubi_rootdev="$(nand_attach_ubi rootfs)" || \
  38            ! ubi_rcvrdev="$(nand_attach_ubi rootfs_recover)"; then
  39                 echo "failed to attach UBI volume \"rootfs\" or \"rootfs_recover\", rebooting..."
  40                 reboot -f
  41         fi
  42
  43         ubimkvol /dev/$ubi_rootdev -N ubi_rootfs -S 1
  44         ubimkvol /dev/$ubi_rootdev -N fw_hash -S 1 -t static
  45
  46         if ! hashvol_root="$(nand_find_volume $ubi_rootdev fw_hash)" || \
  47            ! hashvol_rcvr="$(nand_find_volume $ubi_rcvrdev fw_hash)"; then
  48                 echo "\"fw_hash\" volume in \"rootfs\" or \"rootfs_recover\" not found, rebooting..."
  49                 reboot -f
  50         fi
  51
  52         echo -n "00000000000000000000000000000000" > /tmp/dummyhash.txt
  53         ubiupdatevol /dev/$hashvol_root /tmp/dummyhash.txt
  54         ubiupdatevol /dev/$hashvol_rcvr /tmp/dummyhash.txt
  55 }