On Sat, 2023-11-18 at 12:59 +0000, Patrick O'Callaghan wrote:
> On Tue, 2023-11-14 at 13:52 +0000, Patrick O'Callaghan wrote:
> > My system (both F38 and now F39) reboots itself every morning at
> > 8am,
> > yet nothing in the cron configuration is telling it to do that and
> > I
> > don't see anything obvious in the journal to cause it.
> >
> > How can I figure out what is triggering this? I know the
> > description
> > is
> > vague, but there it is.
>
> Just to close this off:
>
> - The problem was being caused by a flaky smart plug
> - Restoring factory settings to the plug fixed it
> - I decided to follow some recommendations in the thread and use the
> built-in motherboard RTC instead of the smart plug as a way to re-
> activate the system at a set time. This is now working (touch wood).
>
> My hibernation script now includes this snippet, if anyone's
> interested:
Corrected version. It turns out that the wakeup alarm has to be reset
before setting:
set_wakeup() { # See https://www.linux.com/training-tutorials/wake-linux-rtc-alarm-clock/
if [[ $(date +"%H") -lt 8 ]]; then
datestring=$(date '+%s' -d '08:00 today')
else
datestring=$(date '+%s' -d '08:00 tomorrow')
fi
echo 0 > /sys/class/rtc/rtc0/wakealarm
echo "$datestring" > /sys/class/rtc/rtc0/wakealarm
}
--
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