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Groups > comp.os.linux.misc > #12440
| From | "Nuno J. Silva (aka njsg)" <njsg@invalid.invalid> |
|---|---|
| Newsgroups | comp.os.linux.misc, alt.os.linux.slackware, alt.os.linux.debian |
| Subject | Re: what VESA/vga *AM* I useing? |
| Followup-To | comp.os.linux.misc |
| Date | 2014-10-24 07:07 +0000 |
| Organization | Datemas.de http://www.news.datemas.de |
| Message-ID | <m2ctqm$pik$2@news.datemas.de> (permalink) |
| References | <m2a5ur$e5b$1@dont-email.me> <KvOdnR_HGMKLWNTJnZ2dnUU7-UWdnZ2d@posted.cavenetllc> <87tx2u0zit.fld@barrow.com> |
Cross-posted to 3 groups.
Followups directed to: comp.os.linux.misc
["Followup-To:" header set to comp.os.linux.misc.] On 2014-10-24, Floyd L. Davidson <floyd@apaflo.com> wrote: > "Chester A. Arthur" <deadprez@whitehouse.com> wrote: >>On Thu, 23 Oct 2014 06:07:23 +0000, not.socialnetwork wrote: >> >>> PS. how do you easily set the RTC back by 7 minutes, >>> without decoding the absurd `man'? >> >>Set the system clock correctly with the date command, then >>run 'sudo hwclock -w', assuming TZ is set properly. > > /usr/sbin/ntpdate -b us.pool.ntp.org > >>Read the rtc with 'cat /proc/driver/rtc|head -1' or something >>similar on most linuxes. > > Why not just invoke the "date" command. Actually, at least on linux, date (software clock) and the RTC are different things. In this case, Chester's answer was actually much better than mine from yesterday: in this case, we're actually reading the time from the RTC, and the question was "how do you [...] set the RTC back by [...]". > >>One should always keep the hwclock in UTC. System time will >>change with the rules for your local time zone, and computers >>move, especially laptops. Most linuxes these days follow these >>rules, except the gentoo family. Slackware gives you an >>explicit choice at install--choose UTC. The BSDs I have tried >>give no choice, they set the hwclock to localtime, that's dumb. I actually don't know what's the default for Gentoo. This at least used to be documented in the handbook. But I've got so used to the install procedure that I just look it up and make sure that it's set to UTC. > > Most people will be *far* better served setting the > hwclock to local time than to UTC. Actually, if you live in a place where DST exists, for example, all of the mainland european union, and at least some of the other EU territories, and set the hwclock to local time, you open a pandora's box of problems: How do you know in which timezone the RTC is the next time you boot up after DST? If you're dual booting with windows, although Microsoft has not officially endorsed the option, you can set Windows to treat the RTC as being UTC, thus getting rid of yet another problem (which operating system changes the RTC to make up for DST, and when?). The option is not officially endorsed because it has not been hard tested and sometimes may have issues, but these are documented in Microsoft's Knowledge Base. Microsoft Windows NT 6.1 (Windows 7 and Server 2008 R2) and possibly older versions support this option. Unless you have a strong reason not to keep the RTC in UTC, my humble opinion is that you should leave it as UTC to avoid breakage: this way, there's no ambiguity as to what the RTC time stands for. > >>Localtime is crazy, the rules change and there are so many >>strangenesses. (The world ends at midnite-12:30 Newfie time). >>There is software to deal with that, and it works well if it >>isn't bypassed by OSes that make poor choices. > > You're making life much more difficult than it need be. > -- Nuno Silva (aka njsg) Helsinki, Finland
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what VESA/vga *AM* I useing? not.socialnetwork@gmail.com - 2014-10-23 06:07 +0000
Re: what VESA/vga *AM* I useing? "Nuno J. Silva (aka njsg)" <njsg@invalid.invalid> - 2014-10-23 08:22 +0000
Re: what VESA/vga *AM* I useing? not.socialnetwork@gmail.com - 2014-10-23 12:04 +0000
Re: what VESA/vga *AM* I useing? Joe Beanfish <joebeanfish@nospam.duh> - 2014-10-23 13:25 +0000
Re: what VESA/vga *AM* I useing? not.socialnetwork@gmail.com - 2014-10-24 06:14 +0000
Re: what VESA/vga *AM* I useing? ebenZEROONE@verizon.net (Hactar) - 2014-10-23 21:45 -0400
Re: what VESA/vga *AM* I useing? "Nuno J. Silva (aka njsg)" <njsg@invalid.invalid> - 2014-10-24 06:56 +0000
Re: what VESA/vga *AM* I useing? Unknown <dog@gmail.com> - 2014-10-26 03:07 +0000
Re: what VESA/vga *AM* I useing? "Chester A. Arthur" <deadprez@whitehouse.com> - 2014-10-23 22:18 -0500
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-23 22:09 -0800
Re: what VESA/vga *AM* I useing? "Nuno J. Silva (aka njsg)" <njsg@invalid.invalid> - 2014-10-24 07:07 +0000
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-24 00:02 -0800
Re: what VESA/vga *AM* I useing? Rich <rich@example.invalid> - 2014-10-24 12:46 +0000
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-24 05:39 -0800
Re: what VESA/vga *AM* I useing? John Hasler <jhasler@newsguy.com> - 2014-10-24 09:31 -0500
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-24 08:37 -0800
Re: what VESA/vga *AM* I useing? John Hasler <jhasler@newsguy.com> - 2014-10-24 12:09 -0500
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-24 09:30 -0800
Re: what VESA/vga *AM* I useing? John Hasler <jhasler@newsguy.com> - 2014-10-24 12:44 -0500
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-24 10:15 -0800
Re: what VESA/vga *AM* I useing? Rich <rich@example.invalid> - 2014-10-24 18:38 +0000
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-24 11:09 -0800
Re: what VESA/vga *AM* I useing? Richard Kettlewell <rjk@greenend.org.uk> - 2014-10-24 21:31 +0100
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-24 12:53 -0800
Re: what VESA/vga *AM* I useing? Chris Vine <chris@cvine--nospam--.freeserve.co.uk> - 2014-10-25 13:56 +0100
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-25 05:12 -0800
Re: what VESA/vga *AM* I useing? John Hasler <jhasler@newsguy.com> - 2014-10-25 09:24 -0500
Re: what VESA/vga *AM* I useing? Rich <rich@example.invalid> - 2014-10-26 00:15 +0000
Re: what VESA/vga *AM* I useing? John Hasler <jhasler@newsguy.com> - 2014-10-24 14:17 -0500
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-24 12:55 -0800
Re: what VESA/vga *AM* I useing? John Hasler <jhasler@newsguy.com> - 2014-10-24 16:23 -0500
Re: what VESA/vga *AM* I useing? Richard Kettlewell <rjk@greenend.org.uk> - 2014-10-24 22:33 +0100
Re: what VESA/vga *AM* I useing? Rich <rich@example.invalid> - 2014-10-24 18:28 +0000
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-24 10:43 -0800
Re: what VESA/vga *AM* I useing? Rich <rich@example.invalid> - 2014-10-24 22:52 +0000
Re: what VESA/vga *AM* I useing? Eef Hartman <E.J.M.Hartman@gmail.com> - 2014-10-24 18:57 +0000
Re: what VESA/vga *AM* I useing? Rich <rich@example.invalid> - 2014-10-24 17:04 +0000
Re: what VESA/vga *AM* I useing? Eef Hartman <E.J.M.Hartman@gmail.com> - 2014-10-24 17:09 +0000
Re: what VESA/vga *AM* I useing? Allodoxaphobia <knock_yourself_out@example.net> - 2014-10-24 21:02 +0000
Re: what VESA/vga *AM* I useing? John Hasler <jhasler@newsguy.com> - 2014-10-24 16:30 -0500
Re: what VESA/vga *AM* I useing? Martin <m@abc.invalid> - 2014-10-25 14:40 +0200
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-25 04:50 -0800
Re: what VESA/vga *AM* I useing? John Hasler <jhasler@newsguy.com> - 2014-10-25 09:17 -0500
Re: what VESA/vga *AM* I useing? floyd@apaflo.com (Floyd L. Davidson) - 2014-10-25 13:26 -0800
Re: what VESA/vga *AM* I useing? John Hasler <jhasler@newsguy.com> - 2014-10-25 16:49 -0500
Re: what VESA/vga *AM* I useing? Martin <m@abc.invalid> - 2014-10-25 19:54 +0200
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