target/linux/x86/base-files/lib/upgrade/platform.sh

   1 x86_get_rootfs() {
   2         local rootfsdev
   3         local rootfstype
   4
   5         rootfstype="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "rootfstype") { print $2 }' < /proc/cmdline)"
   6         case "$rootfstype" in
   7                 squashfs|jffs2)
   8                         rootfsdev="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "block2mtd.block2mtd") { print substr($2,1,index($2, ",")-1) }' < /proc/cmdline)";;
   9                 ext4)
  10                         rootfsdev="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "root") { print $2 }' < /proc/cmdline)";;
  11         esac
  12
  13         echo "$rootfstype:$rootfsdev"
  14 }
  15
  16 platform_check_image() {
  17         [ "$#" -gt 1 ] && return 1
  18
  19         case "$(get_magic_word "$1")" in
  20                 eb48|eb63) return 0;;
  21                 *)
  22                         echo "Invalid image type"
  23                         return 1
  24                 ;;
  25         esac
  26 }
  27
  28 platform_copy_config() {
  29         local rootfs="$(x86_get_rootfs)"
  30         local rootfsdev="${rootfs##*:}"
  31
  32         mount -t ext4 -o rw,noatime "${rootfsdev%[0-9]}1" /mnt
  33         cp -af "$CONF_TAR" /mnt/
  34         umount /mnt
  35 }
  36
  37 platform_do_upgrade() {
  38         local rootfs="$(x86_get_rootfs)"
  39         local rootfsdev="${rootfs##*:}"
  40
  41         sync
  42         [ -b ${rootfsdev%[0-9]} ] && get_image "$@" | dd of=${rootfsdev%[0-9]} bs=4096 conv=fsync
  43         sleep 1
  44 }