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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@3813 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
42 lines
1.6 KiB
XML
42 lines
1.6 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<sect1 id="ch-scripts-setclock">
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<title>Configuring the setclock script</title>
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<?dbhtml filename="setclock.html"?>
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<indexterm zone="ch-scripts-setclock">
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<primary sortas="d-setclock">setclock</primary>
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<secondary>configuring</secondary></indexterm>
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<para>This <command>setclock</command> script reads the time from your hardware clock, also
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known as BIOS or CMOS (Complementry Metal-Oxide Semiconductor) clock, and either converts that time to localtime
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using the <filename>/etc/localtime</filename> file (if the hardware clock
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is set to GMT) or not (if the hardware clock is already set to localtime).
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There is no way to auto-detect whether the hardware clock is set to GMT or
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not, so we need to configure that here ourselves.</para>
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<para>Change the value of the <emphasis>UTC</emphasis> variable below to a
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<parameter>0</parameter> (zero) if your hardware clock is not set to GMT
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time.</para>
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<para>Create a new file <filename>/etc/sysconfig/clock</filename> by running
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the following:</para>
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<screen><userinput>cat > /etc/sysconfig/clock << "EOF"
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# Begin /etc/sysconfig/clock
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UTC=1
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# End /etc/sysconfig/clock
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EOF</userinput></screen>
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<para>Now, you may want to take a look at a very good hint explaining how we
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deal with time on LFS at <ulink url="&hints-root;time.txt"/>.
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It explains issues such as time zones, UTC, and the TZ environment
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variable.</para>
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</sect1>
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