It may happen that the WiFi service cannot be stopped with a 'TERM' and 'KILL' signal. As a result the firmware upgrade is failing with the following log messages.
Mon Nov 3 21:28:06 CET 2025 upgrade: Sending KILL to remaining processes ... Mon Nov 3 21:28:06 CET 2025 upgrade: Sending signal KILL to hostapd (5664) Mon Nov 3 21:28:09 CET 2025 upgrade: Sending signal KILL to hostapd (5688) Mon Nov 3 21:28:11 CET 2025 upgrade: Sending signal KILL to hostapd (5688) Mon Nov 3 21:28:13 CET 2025 upgrade: Sending signal KILL to hostapd (5688) Mon Nov 3 21:28:15 CET 2025 upgrade: Sending signal KILL to hostapd (5688) Mon Nov 3 21:28:17 CET 2025 upgrade: Sending signal KILL to hostapd (5688) Mon Nov 3 21:28:19 CET 2025 upgrade: Sending signal KILL to hostapd (5688) Mon Nov 3 21:28:22 CET 2025 upgrade: Sending signal KILL to hostapd (5688) Mon Nov 3 21:28:24 CET 2025 upgrade: Sending signal KILL to hostapd (5688) Mon Nov 3 21:28:26 CET 2025 upgrade: Sending signal KILL to hostapd (5688) Mon Nov 3 21:28:28 CET 2025 upgrade: Failed to kill all processes. sysupgrade aborted with return code: 256 It appears that this is because clients remain connected to the system via Wi-Fi during the system upgrade. The script call '/sbin/wifi down' before sending the 'TERM' and 'KILL' signal fixes the problem and the sysupgrade is completed successfully. Signed-off-by: Florian Eckert <[email protected]> --- package/base-files/files/lib/upgrade/stage2 | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/package/base-files/files/lib/upgrade/stage2 b/package/base-files/files/lib/upgrade/stage2 index 5ce0b3549c..00c957c8eb 100755 --- a/package/base-files/files/lib/upgrade/stage2 +++ b/package/base-files/files/lib/upgrade/stage2 @@ -154,6 +154,11 @@ killall -9 telnetd 2>/dev/null killall -9 dropbear 2>/dev/null killall -9 ash 2>/dev/null +[ -f /sbin/wifi ] && { + v "Stopping Wi-Fi service" + /sbin/wifi down +} + kill_remaining TERM sleep 4 kill_remaining KILL 1 -- 2.39.5 _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/mailman/listinfo/openwrt-devel
