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Running ntpdate from a cronjob will adjust the system time every time it runs, but this doesn't mean that your system is "NTP synchronized" (the clock can drift between the periodic syncs) and the kernel will not automatically sync the RTC. Is there any particular reason you're running ntpdate from a cronjob rather than running ntpd? ntpd will keep much ...


Hardware clocks has a tendency to drift, either slowing or accelerating. When your system boots and checks your file system, it might find that the time stamps of your super block is in the future relatively to your system clock (if it slows a lot) and it will refuse to mount the file system without intervention. To avoid this problem in the future, you ...

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