I had a closer look, and start to suspect that the rtcwake command is
operating on the same setting as the acpiwakeup() method in the
shutdown-at-night shell script:
# This method might not work if the hardware clock is updated during
# shutdown. Changing /etc/default/hwclock to list
Control: tags -1 + newcomer
[Petter Reinholdtsen 2014-10-31]
> According to the blog post it need the real time clock alarm,
> https://en.wikipedia.org/wiki/Real-time_clock_alarm > to work.
If I understand this correctly, we do not need to use systemd but can call
the rtcwake (from util-linux at
Package: shutdown-at-night
Version: 0.14
We should consider adding systemd support for waking up the computer in
the morning. The method described on
URL: http://joeyh.name/blog/entry/a_programmable_alarm_clock_using_systemd/
look like something shutdown-at-night could use too.
According to
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