lfs-book-i18n/zh_CN/chapter07/stripping.po

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#. type: Content of: <sect1><title>
msgid "Cleaning up and Saving the Temporary System"
msgstr "清理和备份临时系统"

#. type: Content of: <sect1><para>
msgid ""
"The libtool .la files are only useful when linking with static libraries. "
"They are unneeded, and potentially harmful, when using dynamic shared "
"libraries, specially when using non-autotools build systems.  While still in "
"chroot, remove those files now:"
msgstr ""
"libtool .la 文件仅在链接到静态库时有用。在使用动态共享库时它们没有意义，甚至"
"有害，特别是对于非 autotools 构建系统。仍然在 chroot 环境中，运行命令删除它"
"们："

#. type: Content of: <sect1><screen>
#, no-wrap
msgid "<userinput>find /usr/{lib,libexec} -name \\*.la -delete</userinput>"
msgstr "<userinput>find /usr/{lib,libexec} -name \\*.la -delete</userinput>"

#. type: Content of: <sect1><para>
msgid ""
"Remove the documentation of the temporary tools, to prevent them from ending "
"up in the final system, and save about 35 MB:"
msgstr ""
"删除临时工具的文档，以防止它们进入最终构建的系统，并节省大约 35 MB："

#. type: Content of: <sect1><screen>
#, no-wrap
msgid "<userinput>rm -rf /usr/share/{info,man,doc}/*</userinput>"
msgstr "<userinput>rm -rf /usr/share/{info,man,doc}/*</userinput>"

#. type: Content of: <sect1><note><para>
msgid ""
"All the remaining steps in this section are optional. Nevertheless, as soon "
"as you begin installing packages in <xref linkend=\"chapter-building-system"
"\"/>, the temporary tools will be overwritten. So it may be a good idea to "
"do a backup of the temporary tools as described below. The other steps are "
"only needed if you are really short on disk space."
msgstr ""
"本节中的其余步骤都是可选的。不过，一旦您开始在<xref linkend=\"chapter-"
"building-system\"/>中安装软件包，临时工具就会被覆盖。因此，按照下面描述的步骤"
"备份临时工具可能是个好主意。其余步骤只有在您的磁盘空间非常紧张时才需要执行。"

#. type: Content of: <sect1><para>
msgid ""
"The following steps are performed from outside the chroot environment. That "
"means, you have to leave the chroot environment first before continuing. The "
"reason for that is to:"
msgstr ""
"以下步骤在 chroot 环境之外进行。换句话说，您需要在继续操作之前退出 chroot 环"
"境。这样做的主要原因是："

#. type: Content of: <sect1><para><itemizedlist><listitem><para>
msgid "make sure that objects are not in use while they are manipulated."
msgstr "保证在操作时，目标文件不会被使用。"

#. type: Content of: <sect1><para><itemizedlist><listitem><para>
msgid ""
"get access to file system locations outside of the chroot environment to "
"store/read the backup archive which should not be placed within the "
"<filename class=\"directory\">$LFS</filename> hierarchy for safety reasons."
msgstr ""
"访问 chroot 环境之外的文件系统位置，以写入或读取备份档案，备份档案不应存放在 "
"<filename class=\"directory\">$LFS</filename> 目录树中，以保证安全。"

#. type: Content of: <sect1><para>
msgid ""
"Leave the chroot environment and unmount the kernel virtual file systems:"
msgstr "退出 chroot 环境，并解除挂载内核虚拟文件系统："

#. type: Content of: <sect1><note><para>
msgid ""
"All of the following instructions are executed by <systemitem class="
"\"username\">root</systemitem>. Take extra care about the commands you're "
"going to run as mistakes here can modify your host system. Be aware that the "
"environment variable <envar>LFS</envar> is set for user <systemitem class="
"\"username\">lfs</systemitem> by default but it might <emphasis>not</"
"emphasis> be set for <systemitem class=\"username\">root</systemitem>. "
"Whenever commands are to be executed by <systemitem class=\"username\">root</"
"systemitem>, make sure you have set <envar>LFS</envar> accordingly.  This "
"has been discussed in <xref linkend='ch-partitioning-aboutlfs'/>."
msgstr ""
"以下给出的所有步骤都以 <systemitem class=\"username\">root</systemitem> 身份"
"执行。请非常小心地执行命令，错误的命令可能修改您的宿主系统。特别注意环境变量 "
"<envar>LFS</envar> 会自动为用户 <systemitem class=\"username\">lfs</"
"systemitem> 设定，但可能<emphasis>没有</emphasis>为 <systemitem class="
"\"username\">root</systemitem> 设定。无论何时，只要准备以 <systemitem class="
"\"username\">root</systemitem> 身份执行命令，一定要确认 <envar>LFS</envar> 变"
"量正确设定。<xref linkend='ch-partitioning-aboutlfs'/>已经讨论了这个问题。"

#. type: Content of: <sect1><screen>
#, no-wrap
msgid ""
"<userinput>exit\n"
"umount $LFS/dev{/pts,}\n"
"umount $LFS/{sys,proc,run}</userinput>"
msgstr ""
"<userinput>exit\n"
"umount $LFS/dev{/pts,}\n"
"umount $LFS/{sys,proc,run}</userinput>"

#. type: Content of: <sect1><sect2><title>
msgid "Stripping"
msgstr "移除无用内容"

#. type: Content of: <sect1><sect2><para>
msgid ""
"If the LFS partition is rather small, it is good to know that unnecessary "
"items can be removed. The executables and libraries built so far contain a "
"little over 90 MB of unneeded debugging symbols."
msgstr ""
"如果 LFS 分区比较小，好消息是，有些无用的内容可以删除。到现在为止，已经构建的"
"可执行文件和库包含大约 90MB 的无用调试符号。"

#. type: Content of: <sect1><sect2><para>
msgid "Strip off debugging symbols from binaries:"
msgstr "从二进制文件移除调试符号："

#. type: Content of: <sect1><sect2><screen>
#, no-wrap
msgid ""
"<userinput>strip --strip-debug $LFS/usr/lib/*\n"
"strip --strip-unneeded $LFS/usr/{,s}bin/*\n"
"strip --strip-unneeded $LFS/tools/bin/*</userinput>"
msgstr ""
"<userinput>strip --strip-debug $LFS/usr/lib/*\n"
"strip --strip-unneeded $LFS/usr/{,s}bin/*\n"
"strip --strip-unneeded $LFS/tools/bin/*</userinput>"

#. Note that we use the <command>
#. strip</command> program built in
#.     <quote>Binutils pass 2</quote>, since it is the one that knows how to strip
#.     our cross-compiled programs.
#. type: Content of: <sect1><sect2><para>
msgid ""
"These commands will skip a number of files reporting that it does not "
"recognize their file format. Most of these are scripts instead of binaries."
msgstr ""
"以上命令会跳过一些文件，并报告说无法识别它们的格式。这些文件大多数都是脚本文"
"件，而不是二进制文件。"

#. type: Content of: <sect1><sect2><para>
msgid ""
"Take care <emphasis>NOT</emphasis> to use <parameter>--strip-unneeded</"
"parameter> on the libraries. The static ones would be destroyed and the "
"toolchain packages would need to be built all over again."
msgstr ""
"注意<emphasis>不要</emphasis>对库文件使用 <parameter>--strip-unneeded</"
"parameter> 选项。这会损坏静态库，结果工具链软件包都要重新构建。"

#. type: Content of: <sect1><sect2><para>
msgid ""
"At this point, you should have at least 5 GB of free space on the chroot "
"partition that can be used to build and install Glibc and GCC in the next "
"phase. If you can build and install Glibc, you can build and install the "
"rest too. You can check the free disk space with the command <command>df -h "
"$LFS</command>."
msgstr ""
"现在，您应该保证 chroot 分区有至少 5 GB 的可用空间，以在下一阶段构建和安装 "
"Glibc 和 GCC。如果空间足够构建和安装 Glibc，那么构建和安装剩余的软件包就不成"
"问题。您可以使用命令 <command>df -h $LFS</command> 查询磁盘可用空间。"

#. type: Content of: <sect1><sect2><title>
msgid "Backup"
msgstr "备份"

#. type: Content of: <sect1><sect2><para>
msgid ""
"Now that the essential tools have been created, its time to think about a "
"backup. When every check has passed successfully in the previously built "
"packages, your temporary tools are in a good state and might be backed up "
"for later reuse. In case of fatal failures in the subsequent chapters, it "
"often turns out that removing everything and starting over (more carefully) "
"is the best option to recover. Unfortunately, all the temporary tools will "
"be removed, too. To avoid spending extra time to redo something which has "
"been built successfully, prepare a backup."
msgstr ""
"现在已经建立了必要的工具，可以考虑备份它们。如果对之前构建的软件包进行的各项"
"检查都没有发现问题，即可判定您的临时工具状态良好，可以将它们备份起来供以后重"
"新使用。如果在后续章节发生了无法挽回的错误，通常来说，最好的办法是删除所有东"
"西，然后 (更小心地) 从头开始。不幸的是，这也会删除所有临时工具。为了避免浪费"
"时间对已经构建成功的部分进行返工，可以准备一个备份。"

#. type: Content of: <sect1><sect2><para>
msgid ""
"Make sure you have at least 600 MB free disk space (the source tarballs will "
"be included in the backup archive) in the home directory of user <systemitem "
"class=\"username\">root</systemitem>."
msgstr ""
"确认在 <systemitem class=\"username\">root</systemitem> 的主目录中，有至少 "
"600 MB 的可用存储空间 (源代码压缩包也会被包含在备份档案中)。"

#. type: Content of: <sect1><sect2><para>
msgid "Create the backup archive by running the following command:"
msgstr "运行以下命令，创建备份档案："

#. type: Content of: <sect1><sect2><screen>
#, no-wrap
msgid ""
"<userinput>cd $LFS &amp;&amp;\n"
"tar -cJpf $HOME/lfs-temp-tools-&version;.tar.xz .</userinput>"
msgstr ""
"<userinput>cd $LFS &amp;&amp;\n"
"tar -cJpf $HOME/lfs-temp-tools-&version;.tar.xz .</userinput>"

#. type: Content of: <sect1><sect2><screen>
#, no-wrap
msgid ""
"<userinput>cd $LFS &amp;&amp;\n"
"tar -cJpf $HOME/lfs-temp-tools-&versiond;.tar.xz .</userinput>"
msgstr ""
"<userinput>cd $LFS &amp;&amp;\n"
"tar -cJpf $HOME/lfs-temp-tools-&versiond;.tar.xz .</userinput>"

#. type: Content of: <sect1><sect2><para>
msgid ""
"Replace <envar>$HOME</envar> by a directory of your choice if you do not "
"want to have the backup stored in <systemitem class=\"username\">root</"
"systemitem>'s home directory."
msgstr ""
"如果您不想将备份存储在 <systemitem class=\"username\">root</systemitem> 的主"
"目录中，将 <envar>$HOME</envar> 替换为您选择的其他位置。"

#. type: Content of: <sect1><sect2><title>
msgid "Restore"
msgstr "还原"

#. type: Content of: <sect1><sect2><para>
msgid ""
"In case some mistakes have been made and you need to start over, you can use "
"this backup to restore the temporary tools and save some recovery time.  "
"Since the sources are located under <filename class=\"directory\">$LFS</"
"filename>, they are included in the backup archive as well, so they do not "
"need to be downloaded again. After checking that <envar>$LFS</envar> is set "
"properly, restore the backup by executing the following commands:"
msgstr ""
"如果您犯下了一些错误，并不得不重新开始构建，您可以使用备份档案还原临时工具，"
"节约一些工作时间。由于源代码在 <filename class=\"directory\">$LFS</filename> "
"中，它们也包含在备份档案内，因此不需要重新下载它们。在确认 <envar>$LFS</"
"envar>设定正确后，运行以下命令从备份档案进行还原："

#.  Make the following look different so users don't blindly run the
#.      restore when they don't need to. 
#. type: Content of: <sect1><sect2><screen>
#, no-wrap
msgid ""
"<computeroutput>cd $LFS &amp;&amp;\n"
"rm -rf ./* &amp;&amp;\n"
"tar -xpf $HOME/lfs-temp-tools-&version;.tar.xz</computeroutput>"
msgstr ""
"<computeroutput>cd $LFS &amp;&amp;\n"
"rm -rf ./* &amp;&amp;\n"
"tar -xpf $HOME/lfs-temp-tools-&version;.tar.xz</computeroutput>"

#. type: Content of: <sect1><sect2><screen>
#, no-wrap
msgid ""
"<computeroutput>cd $LFS &amp;&amp;\n"
"rm -rf ./* &amp;&amp;\n"
"tar -xpf $HOME/lfs-temp-tools-&versiond;.tar.xz</computeroutput>"
msgstr ""
"<computeroutput>cd $LFS &amp;&amp;\n"
"rm -rf ./* &amp;&amp;\n"
"tar -xpf $HOME/lfs-temp-tools-&versiond;.tar.xz</computeroutput>"

#. type: Content of: <sect1><sect2><para>
msgid ""
"Again, double check that the environment has been setup properly and "
"continue building the rest of the system."
msgstr "再一次复查环境是否配置正确，即可继续构建系统。"

#. type: Content of: <sect1><sect2><important><para>
msgid ""
"If you left the chroot environment either to strip off debug symbols, create "
"a backup, or restart building using a restore, remember to mount the kernel "
"virtual filesystems now again as described in <xref linkend='ch-tools-"
"kernfs'/> and re-enter the chroot environment (see <xref linkend='ch-tools-"
"chroot'/>)  again before continuing."
msgstr ""
"如果您在移除调试符号，进行备份，或从备份进行恢复时退出了 chroot 环境，记得按"
"照<xref linkend='ch-tools-kernfs'/>的描述重新挂载内核虚拟文件系统，并重新进"
"入 chroot 环境 (参阅<xref linkend='ch-tools-chroot'/>)，再继续进行构建。"