revisedchroot.xml 3.3 KB

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  1. <?xml version="1.0" encoding="ISO-8859-1"?>
  2. <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
  3. "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  4. <!ENTITY % general-entities SYSTEM "../general.ent">
  5. %general-entities;
  6. ]>
  7. <sect1 id="ch-system-revisedchroot">
  8. <?dbhtml filename="revisedchroot.html"?>
  9. <title>Cleaning Up</title>
  10. <para>Finally, clean up some extra files left around from running tests:</para>
  11. <screen><userinput>rm -rf /tmp/*</userinput></screen>
  12. <para>Now log out and reenter the chroot environment with an updated
  13. chroot command. From now on, use this updated chroot command any time
  14. you need to reenter the chroot environment after exiting:</para>
  15. <screen role="nodump"><userinput>logout
  16. chroot "$LFS" /usr/bin/env -i \
  17. HOME=/root TERM="$TERM" \
  18. PS1='(lfs chroot) \u:\w\$ ' \
  19. PATH=/bin:/usr/bin:/sbin:/usr/sbin \
  20. /bin/bash --login</userinput></screen>
  21. <para>Here the <parameter>+h</parameter> option is not used anymore, since
  22. all the previous programs have been replaced: hashing is therefore
  23. possible.</para>
  24. <para>If the virtual kernel file systems have been unmounted, either manually
  25. or through a reboot, ensure that the virtual kernel file systems are mounted
  26. when reentering the chroot. This process was explained in <xref
  27. linkend="ch-tools-bindmount"/> and <xref
  28. linkend="ch-tools-kernfsmount"/>.</para>
  29. <para>There were several static libraries that were not suppressed earlier
  30. in the chapter in order to satisfy the regression tests in several packages. These
  31. libraries are from binutils, bzip2, e2fsprogs, flex, libtool, and zlib. If desired,
  32. remove them now:</para>
  33. <screen><userinput>rm -f /usr/lib/lib{bfd,opcodes}.a
  34. rm -f /usr/lib/libctf{,-nobfd}.a
  35. rm -f /usr/lib/libbz2.a
  36. rm -f /usr/lib/lib{com_err,e2p,ext2fs,ss}.a
  37. rm -f /usr/lib/libltdl.a
  38. rm -f /usr/lib/libfl.a
  39. rm -f /usr/lib/libz.a</userinput></screen>
  40. <para>There are also several files installed in the /usr/lib and /usr/libexec
  41. directories with a file name extension of .la. These are "libtool archive"
  42. files. As already said, they are only useful when linking with static
  43. libraries. They are unneeded, and potentially harmful, when using dynamic
  44. shared libraries, specially when using also non-autotools build systems.
  45. To remove them, run:</para>
  46. <screen><userinput>find /usr/lib /usr/libexec -name \*.la -delete</userinput></screen>
  47. <para>For more information about libtool archive files, see the <ulink
  48. url="&blfs-book;/introduction/la-files.html">BLFS section "About Libtool
  49. Archive (.la) files"</ulink>.</para>
  50. <para>The compiler built in <xref linkend="chapter-temporary-tools"/> and
  51. <xref linkend="chapter-chroot-temporary-tools"/> is still partially
  52. installed and not needed anymore. Remove it with:</para>
  53. <screen><userinput>find /usr -depth -name $(uname -m)-lfs-linux-gnu\* | xargs rm -rf</userinput></screen>
  54. <para>The <filename class="directory">/tools</filename> directory can also
  55. be removed to further gain some space:</para>
  56. <screen><userinput>rm -rf /tools</userinput></screen>
  57. <para>Finally, remove the temporary 'tester' user account created at the
  58. beginning of the previous chapter.</para>
  59. <screen><userinput>userdel -r tester</userinput></screen>
  60. </sect1>