CMOS, daylight saving time and dual-boot

Doug Barton dougb at FreeBSD.org
Sun Oct 28 10:02:14 PDT 2007


On Sun, 28 Oct 2007, Eugene Grosbein wrote:

> It was tuned off yesterday evening and turned back on today,
> loading FreeBSD. Meantime the switch from Summer Time to Standard Time
> has ocurred. There is 'ntpd_enable="YES"' in /etc/rc.conf.
> Nothing in a system reacted on the end of Summer Time period,
> so ntpd just complained about 3600 seconds exceeded sanity limit
> and bailed out (documented behavour).

Right. You're looking at this as a DST problem, when in reality it's just 
a "clock is too far off for ntpd to sync normally" problem. You want to 
have a more general solution for that problem in any case. Adding 
ntpd_sync_on_start to /etc/rc.conf is one way to accomplish that, there 
are others of course.

Doug

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