[GTALUG] TIL: rtcwake / wakealarm

[Warren McPherson]

That's cool.

On Fri, Apr 9, 2021 at 10:23 PM Stewart C. Russell via talk <talk at gtalug.org>
wrote:

> This may be old news to many of you, but today I learned you can have the
> computer's real time clock boot your machine at a specific time. The more
> proper way seems to be to use the 'rtcwake' command, but you can also do it
> by writing the timestamp of the startup time to
> /sys/class/rtc/rtc0/wakealarm
>
> Some more details of the /sys method -
> https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=309093&p=1849326&sid=ca7a14f7d160f929378be4691b1aed9e#p1849291
>
> cheers,
>
>  Stewart
> ---
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