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3 <!ENTITY % general-entities SYSTEM "../general.ent">
6 <sect1 id="ch-scripts-setclock">
7 <title>Configuring the setclock script</title>
8 <?dbhtml filename="setclock.html"?>
10 <indexterm zone="ch-scripts-setclock">
11 <primary sortas="d-setclock">setclock</primary>
12 <secondary>configuring</secondary></indexterm>
14 <para>This setclock script reads the time from your hardware clock, also
15 known as BIOS or CMOS (Complementry Metal-Oxide Semiconductor) clock, and either converts that time to localtime
16 using the <filename>/etc/localtime</filename> file (if the hardware clock
17 is set to GMT) or not (if the hardware clock is already set to localtime).
18 There is no way to auto-detect whether the hardware clock is set to GMT or
19 not, so we need to configure that here ourselves.</para>
21 <para>Change the value of the <emphasis>UTC</emphasis> variable below to a
22 <emphasis>0</emphasis> (zero) if your hardware clock is not set to GMT
25 <para>Create a new file <filename>/etc/sysconfig/clock</filename> by running
28 <screen><userinput>cat > /etc/sysconfig/clock << "EOF"</userinput>
29 # Begin /etc/sysconfig/clock
33 # End /etc/sysconfig/clock
34 <userinput>EOF</userinput></screen>
36 <para>Now, you may want to take a look at a very good hint explaining how we
37 deal with time on LFS at <ulink url="&hints-root;time.txt"/>.
38 It explains issues such as time zones, UTC, and the TZ environment