target/linux/mvebu/base-files/lib/upgrade/sdcard.sh

   1 platform_check_image_sdcard() {
   2         local file="$1"
   3         local diskdev partdev diff
   4
   5         export_bootdevice && export_partdevice diskdev 0 || {
   6                 echo "Unable to determine upgrade device"
   7         return 1
   8         }
   9
  10         get_partitions "/dev/$diskdev" bootdisk
  11
  12         #extract the boot sector from the image
  13         get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b 2>/dev/null
  14
  15         get_partitions /tmp/image.bs image
  16
  17         #compare tables
  18         diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
  19
  20         rm -f /tmp/image.bs /tmp/partmap.bootdisk /tmp/partmap.image
  21
  22         if [ -n "$diff" ]; then
  23                 echo "Partition layout has changed. Full image will be written."
  24                 ask_bool 0 "Abort" && exit 1
  25                 return 0
  26         fi
  27 }
  28
  29 platform_do_upgrade_sdcard() {
  30         local board=$(board_name)
  31         local diskdev partdev diff
  32
  33         export_bootdevice && export_partdevice diskdev 0 || {
  34                 echo "Unable to determine upgrade device"
  35         return 1
  36         }
  37
  38         sync
  39
  40         if [ "$UPGRADE_OPT_SAVE_PARTITIONS" = "1" ]; then
  41                 get_partitions "/dev/$diskdev" bootdisk
  42
  43                 #extract the boot sector from the image
  44                 get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b
  45
  46                 get_partitions /tmp/image.bs image
  47
  48                 #compare tables
  49                 diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
  50         else
  51                 diff=1
  52         fi
  53
  54         if [ -n "$diff" ]; then
  55                 get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
  56
  57                 # Separate removal and addtion is necessary; otherwise, partition 1
  58                 # will be missing if it overlaps with the old partition 2
  59                 partx -d - "/dev/$diskdev"
  60                 partx -a - "/dev/$diskdev"
  61         else
  62                 #write uboot image
  63                 get_image "$@" | dd of="$diskdev" bs=512 skip=1 seek=1 count=2048 conv=fsync
  64                 #iterate over each partition from the image and write it to the boot disk
  65                 while read part start size; do
  66                         if export_partdevice partdev $part; then
  67                                 echo "Writing image to /dev/$partdev..."
  68                                 get_image "$@" | dd of="/dev/$partdev" ibs="512" obs=1M skip="$start" count="$size" conv=fsync
  69                         else
  70                                 echo "Unable to find partition $part device, skipped."
  71                         fi
  72                 done < /tmp/partmap.image
  73
  74                 #copy partition uuid
  75                 echo "Writing new UUID to /dev/$diskdev..."
  76                 get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
  77         fi
  78
  79         case "$board" in
  80         cznic,turris-omnia)
  81                 fw_setenv openwrt_bootargs 'earlyprintk console=ttyS0,115200 root=/dev/mmcblk0p2 rootfstype=auto rootwait'
  82                 fw_setenv openwrt_mmcload 'setenv bootargs "$openwrt_bootargs cfg80211.freg=$regdomain"; fatload mmc 0 0x01000000 zImage; fatload mmc 0 0x02000000 armada-385-turris-omnia.dtb'
  83                 fw_setenv factory_mmcload 'setenv bootargs "$bootargs cfg80211.freg=$regdomain"; btrload mmc 0 0x01000000 boot/zImage @; btrload mmc 0 0x02000000 boot/dtb @'
  84                 fw_setenv mmcboot 'run openwrt_mmcload || run factory_mmcload; bootz 0x01000000 - 0x02000000'
  85                 ;;
  86         esac
  87
  88         sleep 1
  89 }
  90
  91 platform_copy_config_sdcard() {
  92         local partdev
  93
  94         if export_partdevice partdev 1; then
  95                 mkdir -p /boot
  96                 [ -f /boot/kernel.img ] || mount -o rw,noatime /dev/$partdev /boot
  97                 cp -af "$UPGRADE_BACKUP" "/boot/$BACKUP_FILE"
  98                 sync
  99                 umount /boot
 100         fi
 101 }