target/linux/ar71xx/base-files/lib/upgrade/platform.sh

   1 #
   2 # Copyright (C) 2011 OpenWrt.org
   3 #
   4
   5 . /lib/functions/system.sh
   6 . /lib/ar71xx.sh
   7
   8 PART_NAME=firmware
   9 RAMFS_COPY_DATA=/lib/ar71xx.sh
  10 [ -x /usr/sbin/nandwrite ] && RAMFS_COPY_BIN=/usr/sbin/nandwrite
  11
  12 CI_BLKSZ=65536
  13 CI_LDADR=0x80060000
  14
  15 PLATFORM_DO_UPGRADE_COMBINED_SEPARATE_MTD=0
  16
  17 platform_find_partitions() {
  18         local first dev size erasesize name
  19         while read dev size erasesize name; do
  20                 name=${name#'"'}; name=${name%'"'}
  21                 case "$name" in
  22                         vmlinux.bin.l7|vmlinux|kernel|linux|linux.bin|rootfs|filesystem)
  23                                 if [ -z "$first" ]; then
  24                                         first="$name"
  25                                 else
  26                                         echo "$erasesize:$first:$name"
  27                                         break
  28                                 fi
  29                         ;;
  30                 esac
  31         done < /proc/mtd
  32 }
  33
  34 platform_find_kernelpart() {
  35         local part
  36         for part in "${1%:*}" "${1#*:}"; do
  37                 case "$part" in
  38                         vmlinux.bin.l7|vmlinux|kernel|linux|linux.bin)
  39                                 echo "$part"
  40                                 break
  41                         ;;
  42                 esac
  43         done
  44 }
  45
  46 platform_find_rootfspart() {
  47         local part
  48         for part in "${1%:*}" "${1#*:}"; do
  49                 [ "$part" != "$2" ] && echo "$part" && break
  50         done
  51 }
  52
  53 platform_do_upgrade_combined() {
  54         local partitions=$(platform_find_partitions)
  55         local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
  56         local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}"
  57         local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
  58         local kern_blocks=$(($kern_length / $CI_BLKSZ))
  59         local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ))
  60
  61         if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \
  62            [ ${kern_blocks:-0} -gt 0 ] && \
  63            [ ${root_blocks:-0} -gt 0 ] && \
  64            [ ${erase_size:-0} -gt 0 ];
  65         then
  66                 local rootfspart=$(platform_find_rootfspart "$partitions" "$kernelpart")
  67                 local append=""
  68                 [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
  69
  70                 if [ "$PLATFORM_DO_UPGRADE_COMBINED_SEPARATE_MTD" -ne 1 ]; then
  71                     ( dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null; \
  72                       dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null ) | \
  73                             mtd -r $append -F$kernelpart:$kern_length:$CI_LDADR,rootfs write - $partitions
  74                 elif [ -n "$rootfspart" ]; then
  75                     dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null | \
  76                             mtd write - $kernelpart
  77                     dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null | \
  78                             mtd -r $append write - $rootfspart
  79                 fi
  80         fi
  81         PLATFORM_DO_UPGRADE_COMBINED_SEPARATE_MTD=0
  82 }
  83
  84 tplink_get_image_hwid() {
  85         get_image "$@" | dd bs=4 count=1 skip=16 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
  86 }
  87
  88 tplink_get_image_mid() {
  89         get_image "$@" | dd bs=4 count=1 skip=17 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
  90 }
  91
  92 tplink_get_image_boot_size() {
  93         get_image "$@" | dd bs=4 count=1 skip=37 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
  94 }
  95
  96 tplink_pharos_check_image() {
  97         local magic_long="$(get_magic_long "$1")"
  98         [ "$magic_long" != "7f454c46" ] && {
  99                 echo "Invalid image magic '$magic_long'"
 100                 return 1
 101         }
 102
 103         local model_string="$(tplink_pharos_get_model_string)"
 104         local line
 105
 106         # Here $1 is given to dd directly instead of get_image as otherwise the skip
 107         # will take almost a second (as dd can't seek then)
 108         #
 109         # This will fail if the image isn't local, but that's fine: as the
 110         # read loop won't be executed at all, it will return true, so the image
 111         # is accepted (loading the first 1.5M of a remote image for this check seems
 112         # a bit extreme)
 113         dd if="$1" bs=1 skip=1511432 count=1024 2>/dev/null | while read line; do
 114                 [ "$line" == "$model_string" ] && break
 115         done || {
 116                 echo "Unsupported image (model not in support-list)"
 117                 return 1
 118         }
 119
 120         return 0
 121 }
 122
 123 seama_get_type_magic() {
 124         get_image "$@" | dd bs=1 count=4 skip=53 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
 125 }
 126
 127 wrgg_get_image_magic() {
 128         get_image "$@" | dd bs=4 count=1 skip=8 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
 129 }
 130
 131 cybertan_get_image_magic() {
 132         get_image "$@" | dd bs=8 count=1 skip=0  2>/dev/null | hexdump -v -n 8 -e '1/1 "%02x"'
 133 }
 134
 135 cybertan_check_image() {
 136         local magic="$(cybertan_get_image_magic "$1")"
 137         local fw_magic="$(cybertan_get_hw_magic)"
 138
 139         [ "$fw_magic" != "$magic" ] && {
 140                 echo "Invalid image, ID mismatch, got:$magic, but need:$fw_magic"
 141                 return 1
 142         }
 143
 144         return 0
 145 }
 146
 147 platform_do_upgrade_compex() {
 148         local fw_file=$1
 149         local fw_part=$PART_NAME
 150         local fw_mtd=$(find_mtd_part $fw_part)
 151         local fw_length=0x$(dd if="$fw_file" bs=2 skip=1 count=4 2>/dev/null)
 152         local fw_blocks=$(($fw_length / 65536))
 153
 154         if [ -n "$fw_mtd" ] &&  [ ${fw_blocks:-0} -gt 0 ]; then
 155                 local append=""
 156                 [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
 157
 158                 sync
 159                 dd if="$fw_file" bs=64k skip=1 count=$fw_blocks 2>/dev/null | \
 160                         mtd $append write - "$fw_part"
 161         fi
 162 }
 163
 164 alfa_check_image() {
 165         local magic_long="$(get_magic_long "$1")"
 166         local fw_part_size=$(mtd_get_part_size firmware)
 167
 168         case "$magic_long" in
 169         "27051956")
 170                 [ "$fw_part_size" != "16318464" ] && {
 171                         echo "Invalid image magic \"$magic_long\" for $fw_part_size bytes"
 172                         return 1
 173                 }
 174                 ;;
 175         "68737173")
 176                 [ "$fw_part_size" != "7929856" ] && {
 177                         echo "Invalid image magic \"$magic_long\" for $fw_part_size bytes"
 178                         return 1
 179                 }
 180                 ;;
 181         esac
 182
 183         return 0
 184 }
 185
 186 platform_nand_board_name() {
 187         local board=$(ar71xx_board_name)
 188
 189         case "$board" in
 190         rb*) echo "routerboard";;
 191         *) echo "$board";;
 192         esac
 193 }
 194
 195 platform_check_image() {
 196         local board=$(ar71xx_board_name)
 197         local magic="$(get_magic_word "$1")"
 198         local magic_long="$(get_magic_long "$1")"
 199
 200         [ "$#" -gt 1 ] && return 1
 201
 202         case "$board" in
 203         airgatewaypro|\
 204         airgateway|\
 205         airrouter|\
 206         ap132|\
 207         ap90q|\
 208         archer-c59-v1|\
 209         archer-c60-v1|\
 210         bullet-m|\
 211         c-55|\
 212         carambola2|\
 213         cf-e316n-v2|\
 214         cf-e320n-v2|\
 215         cf-e380ac-v1|\
 216         cf-e380ac-v2|\
 217         cf-e520n|\
 218         cf-e530n|\
 219         cpe830|\
 220         cpe870|\
 221         dgl-5500-a1|\
 222         dhp-1565-a1|\
 223         dir-505-a1|\
 224         dir-600-a1|\
 225         dir-615-c1|\
 226         dir-615-e1|\
 227         dir-615-e4|\
 228         dir-615-i1|\
 229         dir-825-c1|\
 230         dir-835-a1|\
 231         dlan-hotspot|\
 232         dlan-pro-1200-ac|\
 233         dlan-pro-500-wp|\
 234         dr531|\
 235         dragino2|\
 236         ebr-2310-c1|\
 237         epg5000|\
 238         esr1750|\
 239         esr900|\
 240         ew-dorin-router|\
 241         ew-dorin|\
 242         gl-ar150|\
 243         gl-ar300m|\
 244         gl-ar300|\
 245         gl-domino|\
 246         gl-mifi|\
 247         hiwifi-hc6361|\
 248         hornet-ub-x2|\
 249         jwap230|\
 250         loco-m-xw|\
 251         mzk-w04nu|\
 252         mzk-w300nh|\
 253         nanostation-m-xw|\
 254         nanostation-m|\
 255         nbg460n_550n_550nh|\
 256         pqi-air-pen|\
 257         rocket-m-ti|\
 258         rocket-m-xw|\
 259         rocket-m|\
 260         rw2458n|\
 261         sc1750|\
 262         sc300m|\
 263         sc450|\
 264         sr3200|\
 265         tew-632brp|\
 266         tew-712br|\
 267         tew-732br|\
 268         tew-823dru|\
 269         unifi-outdoor|\
 270         unifiac-lite|\
 271         unifiac-pro|\
 272         unifi|\
 273         weio|\
 274         whr-g301n|\
 275         whr-hp-g300n|\
 276         whr-hp-gn|\
 277         wlae-ag300n|\
 278         wndap360|\
 279         wpj342|\
 280         wpj344|\
 281         wpj531|\
 282         wrt400n|\
 283         wrtnode2q|\
 284         wzr-450hp2|\
 285         wzr-hp-ag300h|\
 286         wzr-hp-g300nh2|\
 287         wzr-hp-g300nh|\
 288         wzr-hp-g450h|\
 289         xd3200)
 290                 [ "$magic" != "2705" ] && {
 291                         echo "Invalid image type."
 292                         return 1
 293                 }
 294
 295                 return 0
 296                 ;;
 297         alfa-ap96|\
 298         alfa-nx|\
 299         ap121-mini|\
 300         ap121|\
 301         ap135-020|\
 302         ap136-010|\
 303         ap136-020|\
 304         ap147-010|\
 305         ap152|\
 306         ap96|\
 307         arduino-yun|\
 308         bhr-4grv2|\
 309         bxu2000n-2-a1|\
 310         db120|\
 311         dr344|\
 312         dw33d|\
 313         f9k1115v2|\
 314         hornet-ub|\
 315         mr12|\
 316         mr16|\
 317         wpj558|\
 318         zbt-we1526|\
 319         zcn-1523h-2|\
 320         zcn-1523h-5)
 321                 [ "$magic_long" != "68737173" -a "$magic_long" != "19852003" ] && {
 322                         echo "Invalid image type."
 323                         return 1
 324                 }
 325
 326                 return 0
 327                 ;;
 328         all0258n|\
 329         all0315n|\
 330         cap324|\
 331         cap4200ag|\
 332         cr3000|\
 333         cr5000)
 334                 platform_check_image_allnet "$1" && return 0
 335                 return 1
 336                 ;;
 337         all0305|\
 338         eap300v2|\
 339         eap7660d|\
 340         ja76pf2|\
 341         ja76pf|\
 342         jwap003|\
 343         ls-sr71|\
 344         pb42|\
 345         pb44|\
 346         rb-750up-r2|\
 347         rb-941-2nd|\
 348         rb-951ui-2nd|\
 349         rb-mapl-2nd|\
 350         routerstation-pro|\
 351         routerstation|\
 352         wp543|\
 353         wpe72)
 354                 [ "$magic" != "4349" ] && {
 355                         echo "Invalid image. Use *-sysupgrade.bin files on this board"
 356                         return 1
 357                 }
 358
 359                 local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null)
 360                 local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
 361
 362                 if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then
 363                         return 0
 364                 else
 365                         echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)"
 366                         return 1
 367                 fi
 368
 369                 return 0
 370                 ;;
 371         antminer-s1|\
 372         antminer-s3|\
 373         antrouter-r1|\
 374         archer-c5|\
 375         archer-c7|\
 376         el-m150|\
 377         el-mini|\
 378         gl-inet|\
 379         mc-mac1200r|\
 380         minibox-v1|\
 381         omy-g1|\
 382         omy-x1|\
 383         onion-omega|\
 384         oolite|\
 385         re450|\
 386         smart-300|\
 387         som9331|\
 388         tellstick-znet-lite|\
 389         tl-mr10u|\
 390         tl-mr11u|\
 391         tl-mr12u|\
 392         tl-mr13u|\
 393         tl-mr3020|\
 394         tl-mr3040-v2|\
 395         tl-mr3040|\
 396         tl-mr3220-v2|\
 397         tl-mr3220|\
 398         tl-mr3420-v2|\
 399         tl-mr3420|\
 400         tl-wa701nd-v2|\
 401         tl-wa7210n-v2|\
 402         tl-wa750re|\
 403         tl-wa7510n|\
 404         tl-wa801nd-v2|\
 405         tl-wa801nd-v3|\
 406         tl-wa830re-v2|\
 407         tl-wa850re|\
 408         tl-wa850re-v2|\
 409         tl-wa860re|\
 410         tl-wa901nd-v2|\
 411         tl-wa901nd-v3|\
 412         tl-wa901nd-v4|\
 413         tl-wa901nd|\
 414         tl-wdr3320-v2|\
 415         tl-wdr3500|\
 416         tl-wdr4300|\
 417         tl-wdr4900-v2|\
 418         tl-wdr6500-v2|\
 419         tl-wpa8630|\
 420         tl-wr1041n-v2|\
 421         tl-wr1043nd-v2|\
 422         tl-wr1043nd-v4|\
 423         tl-wr1043nd|\
 424         tl-wr2543n|\
 425         tl-wr703n|\
 426         tl-wr710n|\
 427         tl-wr720n-v3|\
 428         tl-wr741nd-v4|\
 429         tl-wr741nd|\
 430         tl-wr802n-v1|\
 431         tl-wr810n|\
 432         tl-wr841n-v11|\
 433         tl-wr841n-v1|\
 434         tl-wr841n-v7|\
 435         tl-wr841n-v8|\
 436         tl-wr841n-v9|\
 437         tl-wr842n-v2|\
 438         tl-wr842n-v3|\
 439         tl-wr941nd-v5|\
 440         tl-wr941nd-v6|\
 441         tl-wr940n-v4|\
 442         tl-wr941nd)
 443                 local magic_ver="0100"
 444
 445                 case "$board" in
 446                 tl-wdr6500-v2)
 447                         magic_ver="0200"
 448                         ;;
 449                 esac
 450
 451                 [ "$magic" != "$magic_ver" ] && {
 452                         echo "Invalid image type."
 453                         return 1
 454                 }
 455
 456                 local hwid
 457                 local mid
 458                 local imagehwid
 459                 local imagemid
 460
 461                 hwid=$(tplink_get_hwid)
 462                 mid=$(tplink_get_mid)
 463                 imagehwid=$(tplink_get_image_hwid "$1")
 464                 imagemid=$(tplink_get_image_mid "$1")
 465
 466                 [ "$hwid" != "$imagehwid" -o "$mid" != "$imagemid" ] && {
 467                         echo "Invalid image, hardware ID mismatch, hw:$hwid $mid image:$imagehwid $imagemid."
 468                         return 1
 469                 }
 470
 471                 local boot_size
 472
 473                 boot_size=$(tplink_get_image_boot_size "$1")
 474                 [ "$boot_size" != "00000000" ] && {
 475                         echo "Invalid image, it contains a bootloader."
 476                         return 1
 477                 }
 478
 479                 return 0
 480                 ;;
 481         bsb|\
 482         dir-825-b1|\
 483         tew-673gru)
 484                 dir825b_check_image "$1" && return 0
 485                 ;;
 486         rb*)
 487                 nand_do_platform_check routerboard $1
 488                 return $?
 489                 ;;
 490         c-60|\
 491         nbg6716|\
 492         r6100|\
 493         wndr3700v4|\
 494         wndr4300)
 495                 nand_do_platform_check $board $1
 496                 return $?
 497                 ;;
 498         cpe210|\
 499         cpe510|\
 500         eap120|\
 501         wbs210|\
 502         wbs510)
 503                 tplink_pharos_check_image "$1" && return 0
 504                 return 1
 505                 ;;
 506         a40|\
 507         a60|\
 508         mr1750v2|\
 509         mr1750|\
 510         mr600v2|\
 511         mr600|\
 512         mr900v2|\
 513         mr900|\
 514         om2p-hsv2|\
 515         om2p-hsv3|\
 516         om2p-hsv4|\
 517         om2p-hs|\
 518         om2p-lc|\
 519         om2pv2|\
 520         om2pv4|\
 521         om2p|\
 522         om5p-acv2|\
 523         om5p-ac|\
 524         om5p-an|\
 525         om5p)
 526                 platform_check_image_openmesh "$magic_long" "$1" && return 0
 527                 return 1
 528                 ;;
 529         mr18|\
 530         z1)
 531                 merakinand_do_platform_check $board $1
 532                 return $?
 533                 ;;
 534         dir-869-a1|\
 535         mynet-n600|\
 536         mynet-n750|\
 537         qihoo-c301)
 538                 [ "$magic_long" != "5ea3a417" ] && {
 539                         echo "Invalid image, bad magic: $magic_long"
 540                         return 1
 541                 }
 542
 543                 local typemagic=$(seama_get_type_magic "$1")
 544                 [ "$typemagic" != "6669726d" ] && {
 545                         echo "Invalid image, bad type: $typemagic"
 546                         return 1
 547                 }
 548
 549                 return 0
 550                 ;;
 551         e2100l|\
 552         mynet-rext|\
 553         wrt160nl)
 554                 cybertan_check_image "$1" && return 0
 555                 return 1
 556                 ;;
 557         nbg6616|\
 558         uap-pro|\
 559         unifi-outdoor-plus)
 560                 [ "$magic_long" != "19852003" ] && {
 561                         echo "Invalid image type."
 562                         return 1
 563                 }
 564
 565                 return 0
 566                 ;;
 567         tube2h)
 568                 alfa_check_image "$1" && return 0
 569                 return 1
 570                 ;;
 571         wndr3700|\
 572         wnr1000-v2|\
 573         wnr2000-v3|\
 574         wnr612-v2|\
 575         wpn824n)
 576                 local hw_magic
 577
 578                 hw_magic="$(ar71xx_get_mtd_part_magic firmware)"
 579                 [ "$magic_long" != "$hw_magic" ] && {
 580                         echo "Invalid image, hardware ID mismatch, hw:$hw_magic image:$magic_long."
 581                         return 1
 582                 }
 583
 584                 return 0
 585                 ;;
 586         wnr2000-v4)
 587                 [ "$magic_long" != "32303034" ] && {
 588                         echo "Invalid image type."
 589                         return 1
 590                 }
 591
 592                 return 0
 593                 ;;
 594         wnr2200)
 595                 [ "$magic_long" != "32323030" ] && {
 596                         echo "Invalid image type."
 597                         return 1
 598                 }
 599
 600                 return 0
 601                 ;;
 602         dap-2695-a1)
 603                 local magic=$(wrgg_get_image_magic "$1")
 604                 [ "$magic" != "21030820" ] && {
 605                         echo "Invalid image, bad type: $magic"
 606                         return 1
 607                 }
 608
 609                 return 0;
 610                 ;;
 611         esac
 612
 613         echo "Sysupgrade is not yet supported on $board."
 614         return 1
 615 }
 616
 617 platform_pre_upgrade() {
 618         local board=$(ar71xx_board_name)
 619
 620         case "$board" in
 621         rb-750up-r2|\
 622         rb-941-2nd|\
 623         rb-951ui-2nd|\
 624         rb-mapl-2nd)
 625                 ;;
 626         rb*|\
 627         c-60|\
 628         nbg6716|\
 629         r6100|\
 630         wndr3700v4|\
 631         wndr4300)
 632                 nand_do_upgrade "$1"
 633                 ;;
 634         mr18|\
 635         z1)
 636                 merakinand_do_upgrade "$1"
 637                 ;;
 638         esac
 639 }
 640
 641 platform_nand_pre_upgrade() {
 642         local board=$(ar71xx_board_name)
 643
 644         case "$board" in
 645         rb*)
 646                 CI_KERNPART=none
 647                 local fw_mtd=$(find_mtd_part kernel)
 648                 fw_mtd="${fw_mtd/block/}"
 649                 [ -n "$fw_mtd" ] || return
 650                 mtd erase kernel
 651                 tar xf "$1" sysupgrade-routerboard/kernel -O | nandwrite -o "$fw_mtd" -
 652                 ;;
 653         esac
 654 }
 655
 656 platform_do_upgrade() {
 657         local board=$(ar71xx_board_name)
 658
 659         case "$board" in
 660         rb-750up-r2|\
 661         rb-941-2nd|\
 662         rb-951ui-2nd|\
 663         rb-mapl-2nd)
 664                 PLATFORM_DO_UPGRADE_COMBINED_SEPARATE_MTD=1
 665                 platform_do_upgrade_combined "$ARGV"
 666                 ;;
 667         all0258n)
 668                 platform_do_upgrade_allnet "0x9f050000" "$ARGV"
 669                 ;;
 670         all0305|\
 671         eap7660d|\
 672         ja76pf2|\
 673         ja76pf|\
 674         jwap003|\
 675         ls-sr71|\
 676         pb42|\
 677         pb44|\
 678         routerstation-pro|\
 679         routerstation)
 680                 platform_do_upgrade_combined "$ARGV"
 681                 ;;
 682         all0315n)
 683                 platform_do_upgrade_allnet "0x9f080000" "$ARGV"
 684                 ;;
 685         cap4200ag|\
 686         eap300v2)
 687                 platform_do_upgrade_allnet "0xbf0a0000" "$ARGV"
 688                 ;;
 689         dir-825-b1|\
 690         tew-673gru)
 691                 platform_do_upgrade_dir825b "$ARGV"
 692                 ;;
 693         a40|\
 694         a60|\
 695         mr1750v2|\
 696         mr1750|\
 697         mr600v2|\
 698         mr600|\
 699         mr900v2|\
 700         mr900|\
 701         om2p-hsv2|\
 702         om2p-hsv3|\
 703         om2p-hsv4|\
 704         om2p-hs|\
 705         om2p-lc|\
 706         om2pv2|\
 707         om2pv4|\
 708         om2p|\
 709         om5p-acv2|\
 710         om5p-ac|\
 711         om5p-an|\
 712         om5p)
 713                 platform_do_upgrade_openmesh "$ARGV"
 714                 ;;
 715         uap-pro|\
 716         unifi-outdoor-plus)
 717                 MTD_CONFIG_ARGS="-s 0x180000"
 718                 default_do_upgrade "$ARGV"
 719                 ;;
 720         wp543|\
 721         wpe72)
 722                 platform_do_upgrade_compex "$ARGV"
 723                 ;;
 724         *)
 725                 default_do_upgrade "$ARGV"
 726                 ;;
 727         esac
 728 }
 729
 730 disable_watchdog() {
 731         killall watchdog
 732         ( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
 733                 echo 'Could not disable watchdog'
 734                 return 1
 735         }
 736 }
 737
 738 append sysupgrade_pre_upgrade disable_watchdog