Date: Sun, 06 Jul 2014 14:14:51 -0700 From: Jesse Gooch <lists@gooch.io> To: freebsd-questions@freebsd.org Subject: Re: Updating and displaying CMOS clock Message-ID: <53B9BC4B.4030609@gooch.io> In-Reply-To: <20140706153206.GA46262@admin.sibptus.tomsk.ru> References: <20140706153206.GA46262@admin.sibptus.tomsk.ru>
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Hi Victor, On 06/07/14 08:32 AM, Victor Sudakov wrote: > Colleagues, > > What's the command to update the CMOS clock to the time of the kernel > clock? > > ntpd does a good job of keeping the accurate time in the kernel clock, > but from my experience, this time is not propagated to the CMOS clock > which lives its own life. As a result, there is a large time skew > everytime the box is rebooted, which prevents from Kerberos login > until the kernel clock is synchronized. > > In other words, what's the FreeBSD equivalent of the Linux > "hwclock --systohc" command? > > And no, contrary to popular belief, the correction of the CMOS clock > does not happen automatically in FreeBSD even if ntpd is running. > > If there is a way to display the time of the CMOS (RTC) clock, I > would be interested to know too. > > TIA. > To get around this I've started using ntpdate on boot. You can put the following in your /etc/rc.conf: --- ntpdate_enable="YES" ntpdate_flags="<time server here>" ---
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