lfs-book-i18n/zh_CN/chapter03/introduction.po

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#. type: Content of: <sect1><title>
msgid "Introduction"
msgstr "概述"

#. type: Content of: <sect1><para>
msgid ""
"This chapter includes a list of packages that need to be downloaded in order "
"to build a basic Linux system. The listed version numbers correspond to "
"versions of the software that are known to work, and this book is based on "
"their use. We highly recommend against using newer versions because the "
"build commands for one version may not work with a newer version. The newest "
"package versions may also have problems that require work-arounds. These "
"work-arounds will be developed and stabilized in the development version of "
"the book."
msgstr ""
"本章包含了构建基本的 Linux 系统时需要下载的软件包列表。我们给出的版本号对应于"
"已经确定可以正常工作的版本，本书是基于这些版本编写的。我们强烈反对使用更新的"
"版本，因为特定版本可用的构建命令未必适用于新版本。最新版本的软件包可能有需要"
"排查的问题，我们会在本书的开发过程中进行排查，将解决方案找到并固定下来。"

#. type: Content of: <sect1><para>
msgid ""
"Download locations may not always be accessible. If a download location has "
"changed since this book was published, Google (<ulink url=\"http://www."
"google.com/\"/>) provides a useful search engine for most packages. If this "
"search is unsuccessful, try one of the alternative means of downloading "
"discussed at <ulink url=\"&lfs-root;lfs/packages.html#packages\"/>."
msgstr ""
"本书列出的下载位置可能失效。如果本书发布后，某个下载位置发生变化，可以用 "
"Google (<ulink url=\"http://www.google.com/\"/>) 提供的搜索引擎找到大多数软件"
"包。如果搜索不到，尝试 <ulink url=\"&lfs-root;lfs/packages.html#packages\"/> "
"给出的备用地址。"

#. type: Content of: <sect1><para>
msgid ""
"Downloaded packages and patches will need to be stored somewhere that is "
"conveniently available throughout the entire build. A working directory is "
"also required to unpack the sources and build them.  <filename class="
"\"directory\">$LFS/sources</filename> can be used both as the place to store "
"the tarballs and patches and as a working directory. By using this "
"directory, the required elements will be located on the LFS partition and "
"will be available during all stages of the building process."
msgstr ""
"下载好的软件包和补丁需要保存在一个适当的位置，使得在整个构建过程中都能容易地"
"访问它们。另外，还需要一个工作目录，以便解压和编译软件包。我们可以将 "
"<filename class=\"directory\">$LFS/sources</filename> 既用于保存软件包和补"
"丁，又作为工作目录。这样，我们需要的所有东西都在 LFS 分区中，因此在整个构建过"
"程中都能够访问。"

#. type: Content of: <sect1><para>
msgid ""
"To create this directory, execute the following command, as user <systemitem "
"class=\"username\">root</systemitem>, before starting the download session:"
msgstr ""
"为了创建这个目录，在开始下载软件包之前，以<systemitem class=\"username"
"\">root</systemitem>身份执行："

#. type: Content of: <sect1><screen>
#, no-wrap
msgid "<userinput>mkdir -v $LFS/sources</userinput>"
msgstr "<userinput>mkdir -v $LFS/sources</userinput>"

#. type: Content of: <sect1><para>
msgid ""
"Make this directory writable and sticky. <quote>Sticky</quote> means that "
"even if multiple users have write permission on a directory, only the owner "
"of a file can delete the file within a sticky directory. The following "
"command will enable the write and sticky modes:"
msgstr ""
"下面为该目录添加写入权限和 sticky 标志。<quote>Sticky</quote> 标志使得即使有"
"多个用户对该目录有写入权限，也只有文件所有者能够删除其中的文件。输入以下命"
"令，启用写入权限和 sticky 标志："

#. type: Content of: <sect1><screen>
#, no-wrap
msgid "<userinput>chmod -v a+wt $LFS/sources</userinput>"
msgstr "<userinput>chmod -v a+wt $LFS/sources</userinput>"

#. type: Content of: <sect1><para>
msgid ""
"There are several ways to optain all the necessary packages and patches to "
"build LFS:"
msgstr "存在多种获取构建 LFS 必须的软件包和补丁的方法："

#. type: Content of: <sect1><itemizedlist><listitem><para>
msgid ""
"The files can be downloaded individually as described in the next two "
"sections."
msgstr "可以在后续的两节中，单独下载这些文件。"

#. type: Content of: <sect1><itemizedlist><listitem><para>
msgid ""
"For stable versions of the book, a tarball of all the needed files can be "
"downloaded from one of the LFS files mirrors listed at <ulink url=\"http://"
"www.linuxfromscratch.org/mirrors.html#files\"/>."
msgstr ""
"对于本手册的稳定版，可以从 <ulink url=\"http://www.linuxfromscratch.org/"
"mirrors.html#files\"/> 中列出的某个镜像站下载包含所有所需文件的压缩包。"

#. type: Content of: <sect1><itemizedlist><listitem><para>
msgid ""
"The files can be downloaded using <command>wget</command> and a wget-list as "
"described below."
msgstr "可以使用 <command>wget</command> 和下面描述的 wget-list 下载这些文件。"

#. type: Content of: <sect1><para>
msgid ""
"To download all of the packages and patches by using <ulink url=\"../wget-"
"list\">wget-list</ulink> as an input to the <command>wget</command> command, "
"use:"
msgstr ""
"如果要使用 <ulink url=\"../wget-list\">wget-list</ulink> 作为 <command>wget</"
"command> 命令的输入，以下载所有软件包和补丁，使用命令："

#. type: Content of: <sect1><screen>
#, no-wrap
msgid "<userinput>wget --input-file=wget-list --continue --directory-prefix=$LFS/sources</userinput>"
msgstr "<userinput>wget --input-file=wget-list --continue --directory-prefix=$LFS/sources</userinput>"

#. type: Content of: <sect1><para>
msgid ""
"Additionally, starting with LFS-7.0, there is a separate file, <ulink url="
"\"../md5sums\">md5sums</ulink>, which can be used to verify that all the "
"correct packages are available before proceeding.  Place that file in "
"<filename class=\"directory\">$LFS/sources</filename> and run:"
msgstr ""
"另外，自 LFS-7.0 以来，本书提供一个单独的文件 <ulink url=\"../md5sums"
"\">md5sums</ulink>，用来检查所有软件包的正确性。将该文件复制到<filename "
"class=\"directory\">$LFS/sources</filename>，运行以下命令即可得到检查结果："

#. type: Content of: <sect1><screen>
#, no-wrap
msgid ""
"<userinput>pushd $LFS/sources\n"
"  md5sum -c md5sums\n"
"popd</userinput>"
msgstr ""
"<userinput>pushd $LFS/sources\n"
"  md5sum -c md5sums\n"
"popd</userinput>"

#. type: Content of: <sect1><para>
msgid ""
"This check can be used after retrieving the needed files with any of the "
"methods listed above."
msgstr "使用上面的各种方法获取文件后，都可以执行这项检查。"