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-system-sysvinit" role="wrap" revision="sysv">
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9 | <?dbhtml filename="sysvinit.html"?>
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10 |
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11 | <sect1info condition="script">
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12 | <productname>sysvinit</productname>
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13 | <productnumber>&sysvinit-version;</productnumber>
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14 | <address>&sysvinit-url;</address>
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15 | </sect1info>
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16 |
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17 | <title>Sysvinit-&sysvinit-version;</title>
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18 |
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19 | <indexterm zone="ch-system-sysvinit">
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20 | <primary sortas="a-Sysvinit">Sysvinit</primary>
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21 | </indexterm>
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22 |
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23 | <sect2 role="package">
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24 | <title/>
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25 |
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26 | <para>The Sysvinit package contains programs for controlling the startup,
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27 | running, and shutdown of the system.</para>
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28 |
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29 | <segmentedlist>
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30 | <segtitle>&buildtime;</segtitle>
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31 | <segtitle>&diskspace;</segtitle>
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32 |
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33 | <seglistitem>
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34 | <seg>&sysvinit-ch6-sbu;</seg>
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35 | <seg>&sysvinit-ch6-du;</seg>
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36 | </seglistitem>
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37 | </segmentedlist>
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38 |
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39 | </sect2>
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40 |
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41 | <sect2 role="installation">
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42 | <title>Installation of Sysvinit</title>
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43 |
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44 | <!--
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45 | <para>When run-levels are changed (for example, when halting the
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46 | system), <command>init</command> sends termination signals to those
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47 | processes that <command>init</command> itself started and that should
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48 | not be running in the new run-level. While doing this,
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49 | <command>init</command> outputs messages like <quote>Sending processes
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50 | the TERM signal</quote> which seem to imply that it is sending these
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51 | signals to all currently running processes. To avoid this
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52 | misinterpretation, modify the source so that these messages read like
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53 | <quote>Sending processes configured via /etc/inittab the TERM signal</quote>
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54 | instead:</para>
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55 |
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56 | <screen><userinput remap="pre">sed -i 's@Sending processes@& configured via /etc/inittab@g' src/init.c</userinput></screen>
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57 |
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58 | <para>Maintained versions of the <command>wall</command>,
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59 | <command>mountpoint</command>, <command>last</command>,
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60 | <command>mesg</command>, <command>sulogin</command>, and
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61 | <command>utmpdump</command> programs were installed earlier by Util-linux.
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62 | Suppress the installation of Sysvinit's versions of these programs and
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63 | their man pages:</para>
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64 |
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65 | <screen><userinput remap="make">sed -ri -e '/utmpdump/d' \
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66 | -e '/mountpoint/d' \
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67 | -e '/mesg/d' \
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68 | -e 's/= sulogin(\.8)?/=/' src/Makefile</userinput></screen>
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69 | -->
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70 | <para>First, apply a patch that removes several programs installed by other
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71 | packages, clarifies a message, and fixes a compiler warning:</para>
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72 |
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73 | <screen><userinput remap="pre">patch -Np1 -i ../&sysvinit-consolidated-patch;</userinput></screen>
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74 |
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75 | <para>Compile the package:</para>
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76 |
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77 | <screen><userinput remap="make">make</userinput></screen>
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78 |
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79 | <para>This package does not come with a test suite.</para>
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80 |
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81 | <para>Install the package:</para>
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82 |
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83 | <screen><userinput remap="install">make install</userinput></screen>
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84 |
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85 | </sect2>
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86 |
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87 | <sect2 id="contents-sysvinit" role="content">
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88 | <title>Contents of Sysvinit</title>
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89 |
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90 | <segmentedlist>
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91 | <segtitle>Installed programs</segtitle>
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92 |
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93 | <seglistitem>
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94 | <seg>bootlogd, fstab-decode, halt, init, killall5,
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95 | poweroff (link to halt), reboot (link to halt), runlevel,
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96 | shutdown, and telinit (link to init)</seg>
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97 | </seglistitem>
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98 | </segmentedlist>
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99 |
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100 | <variablelist>
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101 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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102 | <?dbfo list-presentation="list"?>
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103 | <?dbhtml list-presentation="table"?>
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104 |
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105 | <varlistentry id="bootlogd">
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106 | <term><command>bootlogd</command></term>
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107 | <listitem>
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108 | <para>Logs boot messages to a log file</para>
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109 | <indexterm zone="ch-system-sysvinit bootlogd">
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110 | <primary sortas="b-bootlogd">bootlogd</primary>
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111 | </indexterm>
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112 | </listitem>
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113 | </varlistentry>
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114 |
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115 | <varlistentry id="fstab-decode">
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116 | <term><command>fstab-decode</command></term>
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117 | <listitem>
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118 | <para>Run a command with fstab-encoded arguments</para>
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119 | <indexterm zone="ch-system-sysvinit fstab-decode">
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120 | <primary sortas="b-fstab-decode">fstab-decode</primary>
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121 | </indexterm>
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122 | </listitem>
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123 | </varlistentry>
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124 |
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125 | <varlistentry id="halt-sysv">
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126 | <term><command>halt</command></term>
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127 | <listitem>
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128 | <para>Normally invokes <command>shutdown</command> with the
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129 | <parameter>-h</parameter> option, except when already in run-level 0,
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130 | then it tells the kernel to halt the system; it notes in the
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131 | file <filename>/var/log/wtmp</filename> that the system is being
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132 | brought down</para>
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133 | <indexterm zone="ch-system-sysvinit halt-sysv">
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134 | <primary sortas="b-halt">halt</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="init-sysv">
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140 | <term><command>init</command></term>
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141 | <listitem>
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142 | <para>The first process to be started when the kernel has initialized
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143 | the hardware which takes over the boot process and starts all the
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144 | proceses specified in its configuration file</para>
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145 | <indexterm zone="ch-system-sysvinit init-sysv">
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146 | <primary sortas="b-init">init</primary>
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147 | </indexterm>
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148 | </listitem>
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149 | </varlistentry>
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150 |
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151 | <varlistentry id="killall5">
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152 | <term><command>killall5</command></term>
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153 | <listitem>
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154 | <para>Sends a signal to all processes, except the processes in its own
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155 | session so it will not kill its parent shell</para>
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156 | <indexterm zone="ch-system-sysvinit killall5">
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157 | <primary sortas="b-killall5">killall5</primary>
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158 | </indexterm>
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159 | </listitem>
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160 | </varlistentry>
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161 |
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162 | <varlistentry id="poweroff-sysv">
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163 | <term><command>poweroff</command></term>
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164 | <listitem>
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165 | <para>Tells the kernel to halt the system and switch off the computer
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166 | (see <command>halt</command>)</para>
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167 | <indexterm zone="ch-system-sysvinit poweroff-sysv">
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168 | <primary sortas="b-poweroff">poweroff</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-sysv">
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174 | <term><command>reboot</command></term>
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175 | <listitem>
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176 | <para>Tells the kernel to reboot the system (see
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177 | <command>halt</command>)</para>
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178 | <indexterm zone="ch-system-sysvinit reboot-sysv">
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179 | <primary sortas="b-reboot">reboot</primary>
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180 | </indexterm>
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181 | </listitem>
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182 | </varlistentry>
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183 |
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184 | <varlistentry id="runlevel-sysv">
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185 | <term><command>runlevel</command></term>
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186 | <listitem>
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187 | <para>Reports the previous and the current run-level, as noted in the
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188 | last run-level record in <filename>/var/run/utmp</filename></para>
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189 | <indexterm zone="ch-system-sysvinit runlevel-sysv">
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190 | <primary sortas="b-runlevel">runlevel</primary>
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191 | </indexterm>
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192 | </listitem>
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193 | </varlistentry>
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194 |
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195 | <varlistentry id="shutdown-sysv">
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196 | <term><command>shutdown</command></term>
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197 | <listitem>
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198 | <para>Brings the system down in a secure way, signaling all processes
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199 | and notifying all logged-in users</para>
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200 | <indexterm zone="ch-system-sysvinit shutdown-sysv">
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201 | <primary sortas="b-shutdown">shutdown</primary>
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202 | </indexterm>
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203 | </listitem>
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204 | </varlistentry>
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205 |
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206 | <varlistentry id="telinit-sysv">
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207 | <term><command>telinit</command></term>
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208 | <listitem>
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209 | <para>Tells <command>init</command> which run-level to change to</para>
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210 | <indexterm zone="ch-system-sysvinit telinit-sysv">
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211 | <primary sortas="b-telinit">telinit</primary>
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212 | </indexterm>
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213 | </listitem>
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214 | </varlistentry>
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215 |
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216 | </variablelist>
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217 |
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218 | </sect2>
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219 |
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220 | </sect1>
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