From owner-freebsd-questions  Mon Dec 27 11:10:59 1999
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From: kline@tera.com (Gary Kline)
Message-Id: <199912271910.LAA06169@tera.com>
Subject: Re: ``options TIMEZONE''
In-Reply-To: <199912271340.OAA21163@dorifer.heim3.tu-clausthal.de> from Oliver Fromme at "Dec 27, 99 02:40:29 pm"
To: freebsd-questions@FreeBSD.ORG
Date: Mon, 27 Dec 1999 11:10:31 -0800 (PST)
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According to Oliver Fromme:
[Charset ISO-8859-1 unsupported, filtering to ASCII...]
> Gary Kline wrote in list.freebsd-questions:
>  >    Do we have a way of hardcoding our TZ into the kernel as (I understand)
>  >    OpenBSD does in the KERNEL config file?
>  > 
>  >    option TIMEZONE=+800
> 
> Not that I'm aware of.  Why would you want to do that anyway?
> It's much more convenient to configure it at runtime using the
> "tzsetup" tool.  And you only have to do that once (unless you
> move to a different timezone).  So what would be the point of
> hardcoding it in the kernel?
> 
> Apart from that, the kernel doesn't care about the timezone at
> all, because it is always running on UTC.  As far as I know, it
> only needs the timezone when accessing local MSDOS filesystems,
> because they use local (non-UTC) timestamps.  This is an ugly
> hack, but what do you expect from MS stuff...  Other than that,
> timezone information does not belong in the kernel.


		This is exactly the reason for my post.  I
		wouldn't be caught dead or alive using 
		anything DOS-ish... but other have to... .

> 
> I'd recommend that you have a look at the adjkerntz(8) manpage,
> and maybe also read the manpages referenced in its "see also"
> section.  Normally, "tzsetup" is all that you need, once in
> your computer's life.  If you use sysinstall to install FreeBSD
> on your box, it will even run tzsetup for you, so you don't
> need it at all afterwards.
> 

		I checked adjkerntz; not sure that I understood
		it entirely.  Seems like cron uses it to adjust
		the localtime (in the CMOS clock), if the CMOS 
		is not-UTC.  My CMOS is probably set to PST.

		I've used /stand/sysinstall to set my timezone;
		also have done it by hand.

		I suppose the question should have been:  
		Once my timezone (TZ) is set   and   assuming
		I have the adjkerntz set up, will accessing
		MSDOS files be safe? in sync?

		thanks much,

		gary


> Regards
>    Oliver
> 
> -- 
> Oliver Fromme, Leibnizstr. 18/61, 38678 Clausthal, Germany
> (Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de)
> 
> "In jedem St_ck Kohle wartet ein Diamant auf seine Geburt"
>                                          (Terry Pratchett)
> 
> 
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-- 
Gary Kline	Tera Computer Company


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