EPC-R5710 RTC
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Revision as of 09:02, 7 September 2023 by Xingxing.li (talk | contribs) (Created page with " === '''RTC''' === '''Step 1: Disable rtc sync service''' <pre># systemctl disable ntpd.service Removed /etc/systemd/system/multi-user.target.wants/ntpd.service. # systemctl...")
RTC
Step 1: Disable rtc sync service
# systemctl disable ntpd.service Removed /etc/systemd/system/multi-user.target.wants/ntpd.service. # systemctl stop systemd-timesyncd # systemctl stop ntpdate.service
Step 2: Set system time to current, then write to RTC
# date 021710452016 && hwclock -w && date Wed Feb 17 10:45:00 UTC 2016 Wed Feb 17 10:45:01 UTC 2016
Step 3: Set one incorrect time, then read time from RTC to verify
# date 010100002000 && hwclock -r && date Sat Jan 1 00:00:00 UTC 2000 2016-02-17 10:45:06.361513+00:00 Sat Jan 1 00:00:00 UTC 2000
Step 4: Restore the RTC time to system time
# hwclock -s && date Wed Feb 17 10:45:13 UTC 2016