7423c38c5f544feb4a6deae4f0187f3d528be854
[oweals/openwrt.git] / 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         lima|\
251         loco-m-xw|\
252         mzk-w04nu|\
253         mzk-w300nh|\
254         nanostation-m-xw|\
255         nanostation-m|\
256         nbg460n_550n_550nh|\
257         pqi-air-pen|\
258         rocket-m-ti|\
259         rocket-m-xw|\
260         rocket-m|\
261         rw2458n|\
262         sc1750|\
263         sc300m|\
264         sc450|\
265         sr3200|\
266         tew-632brp|\
267         tew-712br|\
268         tew-732br|\
269         tew-823dru|\
270         unifi-outdoor|\
271         unifiac-lite|\
272         unifiac-pro|\
273         unifi|\
274         weio|\
275         whr-g301n|\
276         whr-hp-g300n|\
277         whr-hp-gn|\
278         wlae-ag300n|\
279         wndap360|\
280         wpj342|\
281         wpj344|\
282         wpj531|\
283         wrt400n|\
284         wrtnode2q|\
285         wzr-450hp2|\
286         wzr-hp-ag300h|\
287         wzr-hp-g300nh2|\
288         wzr-hp-g300nh|\
289         wzr-hp-g450h|\
290         xd3200)
291                 [ "$magic" != "2705" ] && {
292                         echo "Invalid image type."
293                         return 1
294                 }
295
296                 return 0
297                 ;;
298         alfa-ap96|\
299         alfa-nx|\
300         ap121-mini|\
301         ap121|\
302         ap135-020|\
303         ap136-010|\
304         ap136-020|\
305         ap147-010|\
306         ap152|\
307         ap96|\
308         arduino-yun|\
309         bhr-4grv2|\
310         bxu2000n-2-a1|\
311         db120|\
312         dr344|\
313         dw33d|\
314         f9k1115v2|\
315         hornet-ub|\
316         mr12|\
317         mr16|\
318         wpj558|\
319         zbt-we1526|\
320         zcn-1523h-2|\
321         zcn-1523h-5)
322                 [ "$magic_long" != "68737173" -a "$magic_long" != "19852003" ] && {
323                         echo "Invalid image type."
324                         return 1
325                 }
326
327                 return 0
328                 ;;
329         all0258n|\
330         all0315n|\
331         cap324|\
332         cap4200ag|\
333         cr3000|\
334         cr5000)
335                 platform_check_image_allnet "$1" && return 0
336                 return 1
337                 ;;
338         all0305|\
339         eap300v2|\
340         eap7660d|\
341         ja76pf2|\
342         ja76pf|\
343         jwap003|\
344         ls-sr71|\
345         pb42|\
346         pb44|\
347         rb-750-r2|\
348         rb-750up-r2|\
349         rb-941-2nd|\
350         rb-951ui-2nd|\
351         rb-mapl-2nd|\
352         routerstation-pro|\
353         routerstation|\
354         wp543|\
355         wpe72)
356                 [ "$magic" != "4349" ] && {
357                         echo "Invalid image. Use *-sysupgrade.bin files on this board"
358                         return 1
359                 }
360
361                 local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null)
362                 local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
363
364                 if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then
365                         return 0
366                 else
367                         echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)"
368                         return 1
369                 fi
370
371                 return 0
372                 ;;
373         antminer-s1|\
374         antminer-s3|\
375         antrouter-r1|\
376         archer-c5|\
377         archer-c7|\
378         el-m150|\
379         el-mini|\
380         gl-inet|\
381         mc-mac1200r|\
382         minibox-v1|\
383         omy-g1|\
384         omy-x1|\
385         onion-omega|\
386         oolite|\
387         re450|\
388         smart-300|\
389         som9331|\
390         tellstick-znet-lite|\
391         tl-mr10u|\
392         tl-mr11u|\
393         tl-mr12u|\
394         tl-mr13u|\
395         tl-mr3020|\
396         tl-mr3040-v2|\
397         tl-mr3040|\
398         tl-mr3220-v2|\
399         tl-mr3220|\
400         tl-mr3420-v2|\
401         tl-mr3420|\
402         tl-wa701nd-v2|\
403         tl-wa7210n-v2|\
404         tl-wa750re|\
405         tl-wa7510n|\
406         tl-wa801nd-v2|\
407         tl-wa801nd-v3|\
408         tl-wa830re-v2|\
409         tl-wa850re|\
410         tl-wa850re-v2|\
411         tl-wa860re|\
412         tl-wa901nd-v2|\
413         tl-wa901nd-v3|\
414         tl-wa901nd-v4|\
415         tl-wa901nd|\
416         tl-wdr3320-v2|\
417         tl-wdr3500|\
418         tl-wdr4300|\
419         tl-wdr4900-v2|\
420         tl-wdr6500-v2|\
421         tl-wpa8630|\
422         tl-wr1041n-v2|\
423         tl-wr1043nd-v2|\
424         tl-wr1043nd-v4|\
425         tl-wr1043nd|\
426         tl-wr2543n|\
427         tl-wr703n|\
428         tl-wr710n|\
429         tl-wr720n-v3|\
430         tl-wr741nd-v4|\
431         tl-wr741nd|\
432         tl-wr802n-v1|\
433         tl-wr802n-v2|\
434         tl-wr810n|\
435         tl-wr841n-v11|\
436         tl-wr841n-v1|\
437         tl-wr841n-v7|\
438         tl-wr841n-v8|\
439         tl-wr841n-v9|\
440         tl-wr842n-v2|\
441         tl-wr842n-v3|\
442         tl-wr941nd-v5|\
443         tl-wr941nd-v6|\
444         tl-wr940n-v4|\
445         tl-wr941nd)
446                 local magic_ver="0100"
447
448                 case "$board" in
449                 tl-wdr6500-v2)
450                         magic_ver="0200"
451                         ;;
452                 esac
453
454                 [ "$magic" != "$magic_ver" ] && {
455                         echo "Invalid image type."
456                         return 1
457                 }
458
459                 local hwid
460                 local mid
461                 local imagehwid
462                 local imagemid
463
464                 hwid=$(tplink_get_hwid)
465                 mid=$(tplink_get_mid)
466                 imagehwid=$(tplink_get_image_hwid "$1")
467                 imagemid=$(tplink_get_image_mid "$1")
468
469                 [ "$hwid" != "$imagehwid" -o "$mid" != "$imagemid" ] && {
470                         echo "Invalid image, hardware ID mismatch, hw:$hwid $mid image:$imagehwid $imagemid."
471                         return 1
472                 }
473
474                 local boot_size
475
476                 boot_size=$(tplink_get_image_boot_size "$1")
477                 [ "$boot_size" != "00000000" ] && {
478                         echo "Invalid image, it contains a bootloader."
479                         return 1
480                 }
481
482                 return 0
483                 ;;
484         bsb|\
485         dir-825-b1|\
486         tew-673gru)
487                 dir825b_check_image "$1" && return 0
488                 ;;
489         rb-411|\
490         rb-411u|\
491         rb-433|\
492         rb-433u|\
493         rb-435g|\
494         rb-450|\
495         rb-450g|\
496         rb-493|\
497         rb-493g|\
498         rb-750|\
499         rb-750gl|\
500         rb-751|\
501         rb-751g|\
502         rb-911g-2hpnd|\
503         rb-911g-5hpnd|\
504         rb-911g-5hpacd|\
505         rb-912uag-2hpnd|\
506         rb-912uag-5hpnd|\
507         rb-951g-2hnd|\
508         rb-951ui-2hnd|\
509         rb-2011l|\
510         rb-2011uas|\
511         rb-2011uias|\
512         rb-2011uas-2hnd|\
513         rb-2011uias-2hnd|\
514         rb-sxt2n|\
515         rb-sxt5n)
516                 nand_do_platform_check routerboard $1
517                 return $?
518                 ;;
519         c-60|\
520         nbg6716|\
521         r6100|\
522         wndr3700v4|\
523         wndr4300)
524                 nand_do_platform_check $board $1
525                 return $?
526                 ;;
527         cpe210|\
528         cpe510|\
529         eap120|\
530         wbs210|\
531         wbs510)
532                 tplink_pharos_check_image "$1" && return 0
533                 return 1
534                 ;;
535         a40|\
536         a60|\
537         mr1750v2|\
538         mr1750|\
539         mr600v2|\
540         mr600|\
541         mr900v2|\
542         mr900|\
543         om2p-hsv2|\
544         om2p-hsv3|\
545         om2p-hsv4|\
546         om2p-hs|\
547         om2p-lc|\
548         om2pv2|\
549         om2pv4|\
550         om2p|\
551         om5p-acv2|\
552         om5p-ac|\
553         om5p-an|\
554         om5p)
555                 platform_check_image_openmesh "$magic_long" "$1" && return 0
556                 return 1
557                 ;;
558         mr18|\
559         z1)
560                 merakinand_do_platform_check $board $1
561                 return $?
562                 ;;
563         dir-869-a1|\
564         mynet-n600|\
565         mynet-n750|\
566         qihoo-c301)
567                 [ "$magic_long" != "5ea3a417" ] && {
568                         echo "Invalid image, bad magic: $magic_long"
569                         return 1
570                 }
571
572                 local typemagic=$(seama_get_type_magic "$1")
573                 [ "$typemagic" != "6669726d" ] && {
574                         echo "Invalid image, bad type: $typemagic"
575                         return 1
576                 }
577
578                 return 0
579                 ;;
580         e2100l|\
581         mynet-rext|\
582         wrt160nl)
583                 cybertan_check_image "$1" && return 0
584                 return 1
585                 ;;
586         nbg6616|\
587         uap-pro|\
588         unifi-outdoor-plus)
589                 [ "$magic_long" != "19852003" ] && {
590                         echo "Invalid image type."
591                         return 1
592                 }
593
594                 return 0
595                 ;;
596         tube2h)
597                 alfa_check_image "$1" && return 0
598                 return 1
599                 ;;
600         wndr3700|\
601         wnr1000-v2|\
602         wnr2000-v3|\
603         wnr612-v2|\
604         wpn824n)
605                 local hw_magic
606
607                 hw_magic="$(ar71xx_get_mtd_part_magic firmware)"
608                 [ "$magic_long" != "$hw_magic" ] && {
609                         echo "Invalid image, hardware ID mismatch, hw:$hw_magic image:$magic_long."
610                         return 1
611                 }
612
613                 return 0
614                 ;;
615         wnr2000-v4)
616                 [ "$magic_long" != "32303034" ] && {
617                         echo "Invalid image type."
618                         return 1
619                 }
620
621                 return 0
622                 ;;
623         wnr2200)
624                 [ "$magic_long" != "32323030" ] && {
625                         echo "Invalid image type."
626                         return 1
627                 }
628
629                 return 0
630                 ;;
631         dap-2695-a1)
632                 local magic=$(wrgg_get_image_magic "$1")
633                 [ "$magic" != "21030820" ] && {
634                         echo "Invalid image, bad type: $magic"
635                         return 1
636                 }
637
638                 return 0;
639                 ;;
640         esac
641
642         echo "Sysupgrade is not yet supported on $board."
643         return 1
644 }
645
646 platform_pre_upgrade() {
647         local board=$(ar71xx_board_name)
648
649         case "$board" in
650         c-60|\
651         nbg6716|\
652         r6100|\
653         rb-411|\
654         rb-411u|\
655         rb-433|\
656         rb-433u|\
657         rb-435g|\
658         rb-450|\
659         rb-450g|\
660         rb-493|\
661         rb-493g|\
662         rb-750|\
663         rb-750gl|\
664         rb-751|\
665         rb-751g|\
666         rb-911g-2hpnd|\
667         rb-911g-5hpnd|\
668         rb-911g-5hpacd|\
669         rb-912uag-2hpnd|\
670         rb-912uag-5hpnd|\
671         rb-951g-2hnd|\
672         rb-951ui-2hnd|\
673         rb-2011l|\
674         rb-2011uas|\
675         rb-2011uias|\
676         rb-2011uas-2hnd|\
677         rb-2011uias-2hnd|\
678         rb-sxt2n|\
679         rb-sxt5n|\
680         wndr3700v4|\
681         wndr4300)
682                 nand_do_upgrade "$1"
683                 ;;
684         mr18|\
685         z1)
686                 merakinand_do_upgrade "$1"
687                 ;;
688         esac
689 }
690
691 platform_nand_pre_upgrade() {
692         local board=$(ar71xx_board_name)
693
694         case "$board" in
695         rb*)
696                 CI_KERNPART=none
697                 local fw_mtd=$(find_mtd_part kernel)
698                 fw_mtd="${fw_mtd/block/}"
699                 [ -n "$fw_mtd" ] || return
700                 mtd erase kernel
701                 tar xf "$1" sysupgrade-routerboard/kernel -O | nandwrite -o "$fw_mtd" -
702                 ;;
703         esac
704 }
705
706 platform_do_upgrade() {
707         local board=$(ar71xx_board_name)
708
709         case "$board" in
710         rb-750-r2|\
711         rb-750up-r2|\
712         rb-941-2nd|\
713         rb-951ui-2nd|\
714         rb-mapl-2nd)
715                 PLATFORM_DO_UPGRADE_COMBINED_SEPARATE_MTD=1
716                 platform_do_upgrade_combined "$ARGV"
717                 ;;
718         all0258n)
719                 platform_do_upgrade_allnet "0x9f050000" "$ARGV"
720                 ;;
721         all0305|\
722         eap7660d|\
723         ja76pf2|\
724         ja76pf|\
725         jwap003|\
726         ls-sr71|\
727         pb42|\
728         pb44|\
729         routerstation-pro|\
730         routerstation)
731                 platform_do_upgrade_combined "$ARGV"
732                 ;;
733         all0315n)
734                 platform_do_upgrade_allnet "0x9f080000" "$ARGV"
735                 ;;
736         cap4200ag|\
737         eap300v2)
738                 platform_do_upgrade_allnet "0xbf0a0000" "$ARGV"
739                 ;;
740         dir-825-b1|\
741         tew-673gru)
742                 platform_do_upgrade_dir825b "$ARGV"
743                 ;;
744         a40|\
745         a60|\
746         mr1750v2|\
747         mr1750|\
748         mr600v2|\
749         mr600|\
750         mr900v2|\
751         mr900|\
752         om2p-hsv2|\
753         om2p-hsv3|\
754         om2p-hsv4|\
755         om2p-hs|\
756         om2p-lc|\
757         om2pv2|\
758         om2pv4|\
759         om2p|\
760         om5p-acv2|\
761         om5p-ac|\
762         om5p-an|\
763         om5p)
764                 platform_do_upgrade_openmesh "$ARGV"
765                 ;;
766         uap-pro|\
767         unifi-outdoor-plus)
768                 MTD_CONFIG_ARGS="-s 0x180000"
769                 default_do_upgrade "$ARGV"
770                 ;;
771         wp543|\
772         wpe72)
773                 platform_do_upgrade_compex "$ARGV"
774                 ;;
775         *)
776                 default_do_upgrade "$ARGV"
777                 ;;
778         esac
779 }
780
781 disable_watchdog() {
782         killall watchdog
783         ( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
784                 echo 'Could not disable watchdog'
785                 return 1
786         }
787 }
788
789 append sysupgrade_pre_upgrade disable_watchdog