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

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#. type: Content of: <sect1><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:11
msgid "Finishing Temporary Tools"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:14
msgid ""
"The steps in this section are optional. Skip this section entirely if you "
"are not really short on disk space and do not want to create a backup of the "
"temporary tools."
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:20
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 ""

#. type: Content of: <sect1><para><itemizedlist><listitem><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:26
msgid "make sure that objects are not in use while they are manipulated."
msgstr ""

#. type: Content of: <sect1><para><itemizedlist><listitem><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:32
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 ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:43
msgid "Leave the chroot environment and unmount the kernel virtual file systems:"
msgstr ""

#. type: Content of: <sect1><note><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:48
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 ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:62
#, no-wrap
msgid ""
"<userinput>exit\n"
"umount $LFS/dev{/pts,}\n"
"umount $LFS/{sys,proc,run}</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:67
msgid "Stripping"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:69
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 ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:74
msgid "Strip off debugging symbols from binaries:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:75
#, 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 ""

#. 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>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:79
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 ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:85
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 ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:90
msgid "To save more space (slightly more than 35 MB), remove the documentation:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:92
#, no-wrap
msgid "<userinput>rm -rf $LFS/usr/share/{info,man,doc}</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:94
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.  Remove "
"those files now:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:99
#, no-wrap
msgid "<userinput>find $LFS/usr/{lib,libexec} -name \\*.la -delete</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:101
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 ""

#. type: Content of: <sect1><sect2><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:110
msgid "Backup"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:113
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. Unfortunatly, 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 ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:124
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 ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:130
msgid "Create the backup archive by running the following command:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:133
#, no-wrap
msgid ""
"<userinput>cd $LFS &amp;&amp;\n"
"tar -cJpf $HOME/lfs-temp-tools-&version;.tar.xz .</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:136
#, no-wrap
msgid ""
"<userinput>cd $LFS &amp;&amp;\n"
"tar -cJpf $HOME/lfs-temp-tools-&versiond;.tar.xz .</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:140
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 ""

#. type: Content of: <sect1><sect2><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:147
msgid "Restore"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:150
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\">$LFS</filename>, they are included in the backup archive "
"as well, so they do not need to be downloaded again. After checking that "
"<filename class=\"directory\">$LFS</filename> is set properly, restore the "
"backup by executing the following commands:"
msgstr ""

#.  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>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:162
#, 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 ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:166
#, 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 ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:171
msgid ""
"Again, double check that the environment has been setup properly and "
"continue building the rest of the system."
msgstr ""

#. type: Content of: <sect1><sect2><important><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/stripping.xml:177
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 ""