RTC clock not updated when timesyncd get correct date/time

[Belisko Marek <marek.belisko@xxxxxxxxx>]

Hi,

I'm using systemd 234 on rapsberrypi (build from yocto). Board contains RTC chip with capacitor to keep correct date time when device is powered off.

When I boot with eth cable plugged then timedatectl shows correct local date + time and also RTC is properly updated:

 hwclock 

Tue Jan 22 19:47:16 2019  0.000000 seconds

root@device:~# timedatectl 

      Local time: Tue 2019-01-22 19:47:20 UTC

  Universal time: Tue 2019-01-22 19:47:20 UTC

        RTC time: Tue 2019-01-22 19:47:20

       Time zone: Universal (UTC, +0000)

 Network time on: yes

NTP synchronized: yes

 RTC in local TZ: no

but when boot without ethernet cable plugged (plug when device finished booting) then timedatectl shows correct local date + time but RTC is not updated:

timedatectl 

      Local time: Tue 2019-01-22 19:53:56 UTC

  Universal time: Tue 2019-01-22 19:53:56 UTC

        RTC time: Wed 2014-01-01 00:06:03

       Time zone: Universal (UTC, +0000)

 Network time on: yes

NTP synchronized: yes

 RTC in local TZ: no

Is this known problem or there is some issue with my setup (I'm using systemd-networkd + systemd-timesyncd services).

Thanks and BR,

marek

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Marek Belisko - OPEN-NANDRA
Freelance Developer

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skype: marekwhite
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