I have a TX2i on a custom carrier board that has no battery backup for the RTC. The system also has no internet access thus NTP is not an option.
What is the best way to configure the system time in this case? I’d like to control what the time is on system boot in a predictable manner.
Currently I see this in the sys log after each boot:
$dmesg | grep clock
[ 1.658420] tegra_rtc c2a0000.rtc: setting system clock to 2000-01-03 16:40:31 UTC (946917631)
Where does this time value come from?
Also note the system clock gets changed from the above time:
[ 1.869247] systemd: System time before build time, advancing clock.
Sun Jan 28 16:03:59 UTC 2018
Is there a way I can set what I want system time to be at boot?