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- <?xml version="1.0" encoding="UTF-8"?>
- <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
- "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
- <!ENTITY % general-entities SYSTEM "../general.ent">
- %general-entities;
- ]>
- <sect1 id="ch-system-eudev" role="wrap" revision="sysv">
- <?dbhtml filename="eudev.html"?>
- <sect1info condition="script">
- <productname>eudev</productname>
- <productnumber>&eudev-version;</productnumber>
- <address>&eudev-url;</address>
- </sect1info>
- <title>Eudev-&eudev-version;</title>
- <indexterm zone="ch-system-eudev">
- <primary sortas="a-Eudev">Eudev</primary>
- </indexterm>
- <sect2 role="package">
- <title/>
- <para>Eudev 软件包包含动态创建设备节点的程序。</para>
- <segmentedlist>
- <segtitle>&buildtime;</segtitle>
- <segtitle>&diskspace;</segtitle>
- <seglistitem>
- <seg>&eudev-ch6-sbu;</seg>
- <seg>&eudev-ch6-du;</seg>
- </seglistitem>
- </segmentedlist>
- </sect2>
- <sect2 role="installation">
- <title>安装 Eudev</title>
- <!--
- <para>首先修复一个测试脚本:</para>
- <screen><userinput remap="pre">sed -r -i 's|/usr(/bin/test)|\1|' test/udev-test.pl</userinput></screen>
- -->
- <!--
- <para>Next, remove an unneeded line that causes a build failure:</para>
- <screen><userinput remap="pre">sed -i '/keyboard_lookup_key/d' src/udev/udev-builtin-keyboard.c</userinput></screen>
- -->
- <para>采用一个规避措施,防止 /tools 目录被硬编码到
- Eudev 二进制文件的库文件位置中:</para>
- <screen><userinput remap="pre">cat > config.cache << "EOF"
- HAVE_BLKID=1
- BLKID_LIBS="-lblkid"
- BLKID_CFLAGS="-I/tools/include"
- EOF</userinput></screen>
- <para>准备安装 Eudev:</para>
- <screen><userinput remap="configure">./configure --prefix=/usr \
- --bindir=/sbin \
- --sbindir=/sbin \
- --libdir=/usr/lib \
- --sysconfdir=/etc \
- --libexecdir=/lib \
- --with-rootprefix= \
- --with-rootlibdir=/lib \
- --enable-manpages \
- --disable-static \
- --config-cache</userinput></screen>
- <para>编译该软件包:</para>
- <screen><userinput remap="make">LIBRARY_PATH=/tools/lib make</userinput></screen>
- <!--note><para>The LIBRARY_PATH variable here and the LD_LIBRARY_PATH variable
- below are needed to allow the use of libraries that were installed in /tools,
- but have not yet been installed in the main system. LIBRARY_PATH is
- used to find libraries during the linking process. LD_LIBRARY_PATH is
- used to find libraries during program execution.</para></note-->
- <note><para>这里的 LIBRARY_PATH 变量和下面的 LD_LIBRARY_PATH 允许使用
- /tools 中存在,但尚未安装到主系统中的库。LIBRARY_PATH
- 被用于在链接过程中查找库,LD_LIBRARY_PATH 用于在程序执行过程中查找库。
- </para></note>
- <para>创建一些目录,它们目前被用于测试,但之后也会成为安装好的
- eudev 的一部分。</para>
- <screen><userinput remap="test">mkdir -pv /lib/udev/rules.d
- mkdir -pv /etc/udev/rules.d</userinput></screen>
- <para>运行以下命令以测试编译结果:</para>
- <screen><userinput remap="test">make LD_LIBRARY_PATH=/tools/lib check</userinput></screen>
- <para>安装该软件包:</para>
- <screen><userinput remap="install">make LD_LIBRARY_PATH=/tools/lib install</userinput></screen>
- <para>安装一些在 LFS 环境中很有用的自定义规则和支持文件:</para>
- <screen><userinput remap="install">tar -xvf ../&udev-lfs-version;.tar.bz2
- make -f &udev-lfs-version;/Makefile.lfs install</userinput></screen>
- </sect2>
- <sect2 id="conf-eudev" role="configuration">
- <title>配置 Eudev</title>
- <indexterm zone="conf-eudev">
- <primary sortas="a-Eudev">Eudev</primary>
- <secondary>configuring</secondary>
- </indexterm>
- <indexterm zone="conf-eudev">
- <primary sortas="e-/etc/udev/hwdb.bin">/etc/udev/hwdb.bin</primary>
- </indexterm>
- <para>硬件设备的相关信息被维护在
- <filename class="directory">/etc/udev/hwdb.d</filename> 和
- <filename class="directory">/lib/udev/hwdb.d</filename> 目录中。
- <application>Eudev</application> 需要将这些信息编译到二进制数据库
- <filename>/etc/udev/hwdb.bin</filename> 中。初始化该数据库:</para>
- <screen><userinput>LD_LIBRARY_PATH=/tools/lib udevadm hwdb --update</userinput></screen>
- <para>每次硬件信息有更新时,都要运行该命令。</para>
- </sect2>
- <sect2 id="contents-eudev" role="content">
- <title>Eudev 的内容</title>
- <segmentedlist>
- <segtitle>安装的程序</segtitle>
- <segtitle>安装的库</segtitle>
- <segtitle>安装的目录</segtitle>
- <seglistitem>
- <seg><!-- These are in /lib/udev and not to be called by the user:
- accelerometer, ata_id, cdrom_id, collect, mtd_probe,
- scsi_id, v4l_id,--> udevadm 和 udevd</seg>
- <seg>libudev.so</seg>
- <seg>/etc/udev, /lib/udev, 以及 /usr/share/doc/udev-&udev-lfs-version;</seg>
- </seglistitem>
- </segmentedlist>
- <variablelist>
- <bridgehead renderas="sect3">简要描述</bridgehead>
- <?dbfo list-presentation="list"?>
- <?dbhtml list-presentation="table"?>
- <varlistentry id="udevadm" revision="sysv">
- <term><command>udevadm</command></term>
- <listitem>
- <para>通用 udev 管理工具:控制 udevd 守护进程,
- 从 udev 数据库中提供信息,监视 uevent,等待 uevent 完成,
- 测试 udev 配置,并为指定设备触发 uevent。</para>
- <indexterm zone="ch-system-eudev udevadm">
- <primary sortas="b-udevadm">udevadm</primary>
- </indexterm>
- </listitem>
- </varlistentry>
- <varlistentry id="udevd">
- <term><command>udevd</command></term>
- <listitem>
- <para>一个守护进程,它在 netlink 套接字上监听 uevent,
- 并创建设备节点、运行配置好的外部程序,以响应这些 uevent。</para>
- <indexterm zone="ch-system-eudev udevd">
- <primary sortas="b-udevd">udevd</primary>
- </indexterm>
- </listitem>
- </varlistentry>
- <varlistentry id="libudev">
- <term><filename class="libraryfile">libudev</filename></term>
- <listitem>
- <para>一个提供 udev 设备信息接口的库</para>
- <indexterm zone="ch-system-eudev libudev">
- <primary sortas="c-libudev">libudev</primary>
- </indexterm>
- </listitem>
- </varlistentry>
- <varlistentry id="etc-udev">
- <term><filename class="directory">/etc/udev</filename></term>
- <listitem>
- <para>包含 udev 配置文件、设备权限设置和设备命名规则</para>
- <indexterm zone="ch-system-eudev etc-udev">
- <primary sortas="e-/etc/udev">/etc/udev</primary>
- </indexterm>
- </listitem>
- </varlistentry>
- </variablelist>
- </sect2>
- </sect1>
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