| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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| 7 |
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| 8 | <sect1 id="ch-boot-boot-scripts" role="wrap">
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| 9 | <?dbhtml filename="boot-scripts.html"?>
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| 10 |
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| 11 | <title>Boot-scripts for CLFS &boot-scripts-clfs-version;</title>
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| 12 |
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| 13 | <indexterm zone="ch-boot-boot-scripts">
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| 14 | <primary sortas="a-Boot-scripts">Boot-scripts</primary>
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| 15 | </indexterm>
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| 16 |
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| 17 | <sect2 role="package">
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| 18 | <title/>
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| 19 |
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| 20 | <para>The Boot-scripts package contains a set of scripts to
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| 21 | start/stop the CLFS system at bootup/shutdown.</para>
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| 22 |
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| 23 | </sect2>
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| 24 |
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| 25 | <sect2 role="installation">
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| 26 | <title>Installation of Boot-scripts</title>
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| 27 |
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| 28 | <para os="a">Install the package:</para>
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| 29 |
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| 30 | <screen os="b"><userinput>make DESTDIR=/tools install-boot-scripts</userinput></screen>
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| 31 |
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| 32 | <para os="c">The <command>setclock</command> script reads the time from the
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| 33 | hardware clock, also known as the BIOS or the Complementary Metal Oxide
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| 34 | Semiconductor (CMOS) clock. If the hardware clock is set to UTC, this
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| 35 | script will convert the hardware clock's time to the local time using
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| 36 | the <filename>/tools/etc/sysconfig/clock</filename> file (which tells the
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| 37 | <command>hwclock</command> program which timezone the user is in). There
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| 38 | is no way to detect whether or not the hardware clock is set to UTC, so
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| 39 | this needs to be configured manually.</para>
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| 40 |
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| 41 |
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| 42 |
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| 43 | <para os="d">If you do not know whether or not the hardware clock is set to UTC,
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| 44 | you can find out after you have booted the new machine by running the
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| 45 | <userinput>hwclock --localtime --show</userinput> command, and if
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| 46 | necessary editing the <filename>/tools/etc/sysconfig/clock</filename> file.
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| 47 | The worst that will happen if you make a wrong guess here is that the
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| 48 | time displayed will be wrong.</para>
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| 49 |
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| 50 | <para os="e">Change the value of the <envar>UTC</envar> variable below
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| 51 | to a value of <option>0</option> (zero) if the hardware clock
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| 52 | is <emphasis>not</emphasis> set to UTC time.</para>
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| 53 |
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| 54 | <screen os="f"><userinput>cat > /tools/etc/sysconfig/clock << "EOF"
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| 55 | <literal># Begin /tools/etc/sysconfig/clock
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| 56 |
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| 57 | UTC=1
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| 58 |
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| 59 | # End /tools/etc/sysconfig/clock</literal>
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| 60 | EOF</userinput></screen>
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| 61 |
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| 62 | </sect2>
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| 63 |
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| 64 | <sect2 id="contents-boot-scripts" role="content">
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| 65 | <title>Contents of Boot-scripts</title>
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| 66 |
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| 67 | <segmentedlist>
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| 68 | <segtitle>Installed scripts</segtitle>
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| 69 |
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| 70 | <seglistitem>
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| 71 | <seg>checkfs, cleanfs, functions, halt, localnet, mountfs, mountkernfs,
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| 72 | rc, reboot, sendsignals, setclock, swap, and udev.</seg>
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| 73 | </seglistitem>
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| 74 | </segmentedlist>
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| 75 |
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| 76 | <variablelist>
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| 77 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 78 | <?dbfo list-presentation="list"?>
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| 79 | <?dbhtml list-presentation="table"?>
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| 80 |
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| 81 | <varlistentry id="checkfs-boot-scripts">
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| 82 | <term><command>checkfs</command></term>
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| 83 | <listitem>
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| 84 | <para>Checks the integrity of the file systems before they are
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| 85 | mounted (with the exception of journal and network based file
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| 86 | systems)</para>
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| 87 | <indexterm zone="ch-boot-boot-scripts checkfs-boot-scripts">
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| 88 | <primary sortas="d-checkfs">checkfs</primary>
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| 89 | </indexterm>
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| 90 | </listitem>
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| 91 | </varlistentry>
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| 92 |
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| 93 | <varlistentry id="cleanfs-boot-scripts">
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| 94 | <term><command>cleanfs</command></term>
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| 95 | <listitem>
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| 96 | <para>Removes files that should not be preserved between reboots,
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| 97 | such as those in <filename class="directory">/run/</filename>
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| 98 | and <filename class="directory">/var/lock/</filename>; it re-creates
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| 99 | <filename>/run/utmp</filename> and removes the possibly present
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| 100 | <filename>/etc/nologin</filename>, <filename>/fastboot</filename>,
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| 101 | and <filename>/forcefsck</filename> files</para>
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| 102 | <indexterm zone="ch-boot-boot-scripts cleanfs-boot-scripts">
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| 103 | <primary sortas="d-cleanfs">cleanfs</primary>
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| 104 | </indexterm>
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| 105 | </listitem>
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| 106 | </varlistentry>
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| 107 |
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| 108 | <varlistentry id="functions-boot-scripts">
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| 109 | <term><command>functions</command></term>
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| 110 | <listitem>
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| 111 | <para>Contains common functions, such as error and status checking,
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| 112 | that are used by several boot-scripts</para>
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| 113 | <indexterm zone="ch-boot-boot-scripts functions-boot-scripts">
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| 114 | <primary sortas="d-functions">functions</primary>
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| 115 | </indexterm>
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| 116 | </listitem>
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| 117 | </varlistentry>
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| 118 |
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| 119 | <varlistentry id="halt-boot-scripts">
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| 120 | <term><command>halt</command></term>
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| 121 | <listitem>
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| 122 | <para>Halts the system</para>
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| 123 | <indexterm zone="ch-boot-boot-scripts halt-boot-scripts">
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| 124 | <primary sortas="d-halt">halt</primary>
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| 125 | </indexterm>
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| 126 | </listitem>
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| 127 | </varlistentry>
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| 128 |
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| 129 | <varlistentry id="localnet-boot-scripts">
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| 130 | <term><command>localnet</command></term>
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| 131 | <listitem>
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| 132 | <para>Sets up the system's hostname and local loopback device</para>
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| 133 | <indexterm zone="ch-boot-boot-scripts localnet-boot-scripts">
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| 134 | <primary sortas="d-localnet">localnet</primary>
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| 135 | </indexterm>
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| 136 | </listitem>
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| 137 | </varlistentry>
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| 138 |
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| 139 | <varlistentry id="mountfs-boot-scripts">
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| 140 | <term><command>mountfs</command></term>
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| 141 | <listitem>
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| 142 | <para>Mounts all file systems, except ones that are marked
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| 143 | <emphasis>noauto</emphasis> or are network based</para>
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| 144 | <indexterm zone="ch-boot-boot-scripts mountfs-boot-scripts">
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| 145 | <primary sortas="d-mountfs">mountfs</primary>
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| 146 | </indexterm>
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| 147 | </listitem>
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| 148 | </varlistentry>
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| 149 |
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| 150 | <varlistentry id="mountkernfs-boot-scripts">
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| 151 | <term><command>mountkernfs</command></term>
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| 152 | <listitem>
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| 153 | <para>Mounts virtual kernel file systems, such as
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| 154 | <systemitem class="filesystem">proc</systemitem></para>
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| 155 | <indexterm zone="ch-boot-boot-scripts mountkernfs-boot-scripts">
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| 156 | <primary sortas="d-mountkernfs">mountkernfs</primary>
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| 157 | </indexterm>
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| 158 | </listitem>
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| 159 | </varlistentry>
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| 160 |
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| 161 | <varlistentry id="rc-boot-scripts">
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| 162 | <term><command>rc</command></term>
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| 163 | <listitem>
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| 164 | <para>The master run-level control script; it is responsible for
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| 165 | running all the other boot-scripts one-by-one, in a sequence
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| 166 | determined by the name of the symbolic links being processed</para>
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| 167 | <indexterm zone="ch-boot-boot-scripts rc-boot-scripts">
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| 168 | <primary sortas="d-rc">rc</primary>
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| 169 | </indexterm>
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| 170 | </listitem>
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| 171 | </varlistentry>
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| 172 |
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| 173 | <varlistentry id="reboot-boot-scripts">
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| 174 | <term><command>reboot</command></term>
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| 175 | <listitem>
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| 176 | <para>Reboots the system</para>
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| 177 | <indexterm zone="ch-boot-boot-scripts reboot-boot-scripts">
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| 178 | <primary sortas="d-reboot">reboot</primary>
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| 179 | </indexterm>
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| 180 | </listitem>
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| 181 | </varlistentry>
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| 182 |
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| 183 | <varlistentry id="sendsignals-boot-scripts">
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| 184 | <term><command>sendsignals</command></term>
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| 185 | <listitem>
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| 186 | <para>Makes sure every process is terminated before the system reboots
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| 187 | or halts</para>
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| 188 | <indexterm zone="ch-boot-boot-scripts sendsignals-boot-scripts">
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| 189 | <primary sortas="d-sendsignals">sendsignals</primary>
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| 190 | </indexterm>
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| 191 | </listitem>
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| 192 | </varlistentry>
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| 193 |
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| 194 | <varlistentry id="setclock-boot-scripts">
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| 195 | <term><command>setclock</command></term>
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| 196 | <listitem>
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| 197 | <para>Resets the kernel clock to local time in case the hardware clock
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| 198 | is not set to UTC time</para>
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| 199 | <indexterm zone="ch-boot-boot-scripts setclock-boot-scripts">
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| 200 | <primary sortas="d-setclock">setclock</primary>
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| 201 | </indexterm>
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| 202 | </listitem>
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| 203 | </varlistentry>
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| 204 |
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| 205 | <varlistentry id="swap-boot-scripts">
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| 206 | <term><command>swap</command></term>
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| 207 | <listitem>
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| 208 | <para>Enables and disables swap files and partitions</para>
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| 209 | <indexterm zone="ch-boot-boot-scripts swap-boot-scripts">
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| 210 | <primary sortas="d-swap">swap</primary>
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| 211 | </indexterm>
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| 212 | </listitem>
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| 213 | </varlistentry>
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| 214 |
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| 215 | <varlistentry id="eudev-boot-scripts">
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| 216 | <term><command>udev</command></term>
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| 217 | <listitem>
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| 218 | <para>Starts and stops the Eudev daemon</para>
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| 219 | <indexterm zone="ch-boot-boot-scripts eudev-boot-scripts">
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| 220 | <primary sortas="d-eudev">udev</primary>
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| 221 | </indexterm>
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| 222 | </listitem>
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| 223 | </varlistentry>
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| 224 |
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| 225 | </variablelist>
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| 226 |
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| 227 | </sect2>
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| 228 |
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| 229 | </sect1>
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