@Stephen
Hi, this doesn’t solve the problem. Even after link rtc to rtc1 with udev rules.
According to #785445 - systemd: with 2 RTC devices -- need way to chose which one sets system clock on boot - Debian Bug report logs, the default rtc device to use is set at compile time:
That’s right, the kernel optionally reads an RTC into the system time at
boot (CONFIG_RTC_HCTOSYS) and the name of the RTC to use is also part of
the kernel configuration (CONFIG_RTC_HCTOSYS_DEVICE).
So, may be changing the compile parameter when officially release new kernel is the best solution.