target/linux/imx/base-files/lib/imx.sh

   1 #
   2 # Copyright (C) 2010-2013 OpenWrt.org
   3 #
   4
   5 rootpartuuid() {
   6         local cmdline=$(cat /proc/cmdline)
   7         local bootpart=${cmdline##*root=}
   8         bootpart=${bootpart%% *}
   9         local uuid=${bootpart#PARTUUID=}
  10         echo ${uuid%-02}
  11 }
  12
  13 bootdev_from_uuid() {
  14         blkid | grep "PTUUID=\"$(rootpartuuid)\"" | cut -d : -f1
  15 }
  16
  17 bootpart_from_uuid() {
  18         blkid | grep $(rootpartuuid)-01 | cut -d : -f1
  19 }
  20
  21 rootpart_from_uuid() {
  22         blkid | grep $(rootpartuuid)-02 | cut -d : -f1
  23 }
  24
  25 imx_sdcard_mount_boot() {
  26         mkdir -p /boot
  27         [ -f /boot/uImage ] || {
  28                 mount -o rw,noatime $(bootpart_from_uuid) /boot > /dev/null
  29         }
  30 }
  31
  32 imx_sdcard_copy_config() {
  33         imx_sdcard_mount_boot
  34         cp -af "$UPGRADE_BACKUP" "/boot/$BACKUP_FILE"
  35         sync
  36         umount /boot
  37 }
  38
  39 imx_sdcard_do_upgrade() {
  40         local board_dir="$(tar tf "${1}" | grep -m 1 '^sysupgrade-.*/$')"
  41         board_dir="${board_dir%/}"
  42
  43         imx_sdcard_mount_boot
  44         get_image "$1" | tar Oxf - ${board_dir}/kernel > /boot/uImage-new && \
  45                 mv /boot/uImage-new /boot/uImage && \
  46                 sync && \
  47                 get_image "$1" | tar Oxf - ${board_dir}/root > $(rootpart_from_uuid) && \
  48                 sync
  49
  50         umount /boot
  51 }
  52
  53 imx_sdcard_pre_upgrade() {
  54         [ -z "$UPGRADE_BACKUP" ] && {
  55                 jffs2reset -y
  56                 umount /overlay
  57         }
  58 }
  59
  60 imx_sdcard_move_config() {
  61         if [ -b $(bootpart_from_uuid) ]; then
  62                 imx_sdcard_mount_boot
  63                 [ -f "/boot/$BACKUP_FILE" ] && mv -f "/boot/$BACKUP_FILE" /
  64                 umount /boot
  65         fi
  66 }