target/linux/ipq40xx/base-files/lib/upgrade/netgear.sh

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 . /lib/functions.sh
   3
   4 platform_do_upgrade_netgear_orbi_upgrade() {
   5         command -v losetup >/dev/null || {
   6                 logger -s "Upgrade failed: 'losetup' not installed."
   7                 return 1
   8         }
   9
  10         local tar_file=$1
  11         local kernel=$2
  12         local rootfs=$3
  13
  14         [ -z "$kernel" ] && kernel=$(find_mmc_part "kernel")
  15         [ -z "$rootfs" ] && rootfs=$(find_mmc_part "rootfs")
  16
  17         [ -z "$kernel" ] && echo "Upgrade failed: kernel partition not found! Rebooting..." && reboot -f
  18         [ -z "$rootfs" ] && echo "Upgrade failed: rootfs partition not found! Rebooting..." && reboot -f
  19
  20         netgear_orbi_do_flash $tar_file $kernel $rootfs
  21
  22         echo "sysupgrade successful"
  23         umount -a
  24         reboot -f
  25 }
  26
  27 netgear_orbi_do_flash() {
  28         local tar_file=$1
  29         local kernel=$2
  30         local rootfs=$3
  31
  32         # keep sure its unbound
  33         losetup --detach-all || {
  34                 echo "Failed to detach all loop devices. Skip this try."
  35                 reboot -f
  36         }
  37
  38         # use the first found directory in the tar archive
  39         local board_dir=$(tar tf $tar_file | grep -m 1 '^sysupgrade-.*/$')
  40         board_dir=${board_dir%/}
  41
  42         echo "flashing kernel to $kernel"
  43         tar xf $tar_file ${board_dir}/kernel -O >$kernel
  44
  45         echo "flashing rootfs to ${rootfs}"
  46         tar xf $tar_file ${board_dir}/root -O >"${rootfs}"
  47
  48         # a padded rootfs is needed for overlay fs creation
  49         local offset=$(tar xf $tar_file ${board_dir}/root -O | wc -c)
  50         [ $offset -lt 65536 ] && {
  51                 echo "Wrong size for rootfs: $offset"
  52                 sleep 10
  53                 reboot -f
  54         }
  55
  56         # Mount loop for rootfs_data
  57         local loopdev="$(losetup -f)"
  58         losetup -o $offset $loopdev $rootfs || {
  59                 echo "Failed to mount looped rootfs_data."
  60                 sleep 10
  61                 reboot -f
  62         }
  63
  64         echo "Format new rootfs_data at position ${offset}."
  65         mkfs.ext4 -F -L rootfs_data $loopdev
  66         mkdir /tmp/new_root
  67         mount -t ext4 $loopdev /tmp/new_root && {
  68                 echo "Saving config to rootfs_data at position ${offset}."
  69                 cp -v "$UPGRADE_BACKUP" "/tmp/new_root/$BACKUP_FILE"
  70                 umount /tmp/new_root
  71         }
  72
  73         # Cleanup
  74         losetup -d $loopdev >/dev/null 2>&1
  75         sync
  76 }