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fix(iso): pet hardware watchdog via systemd RuntimeWatchdogSec=30s

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Without a keepalive the kernel watchdog timer expires and reboots
the host mid-audit. Configuring RuntimeWatchdogSec lets systemd PID 1
reset /dev/watchdog every 30 s — well within the typical 60 s timeout.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Mikhail Chusavitin
2026-03-18 23:56:42 +03:00
parent 76a17937f3
commit 13189e2683
1 changed files with 4 additions and 0 deletions
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4
iso/overlay/etc/systemd/system.conf.d/watchdog.conf Normal file
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[Manager]
# Pet the hardware watchdog every 30s so the host doesn't reboot mid-audit.
# Kernel watchdog timeout is typically 60s; 30s gives a safe 2× margin.
RuntimeWatchdogSec=30s