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  "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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<sect1 id="ch-boot-changingowner">
  <?dbhtml filename="changingowner.html"?>

  <title>Changing Ownership</title>

  <para os="a">Currently, the <filename class="directory">/tools</filename>
  directory is owned by the user <systemitem class="username">lfs</systemitem>,
  a user that exists only on the host system. Although the <filename
  class="directory">/tools</filename> directory can be deleted once the
  LFS system has been finished, it can be retained to build additional
  LFS systems. If the <filename class="directory">/tools</filename>
  directory is kept as is, the files are owned by a user ID without a
  corresponding account. This is dangerous because a user account created
  later could get this same user ID and would own the <filename
  class="directory">/tools</filename> directory and all the files therein,
  thus exposing these files to possible malicious manipulation.</para>

  <para os="b">To avoid this issue, add the <systemitem
  class="username">lfs</systemitem> user to the new LFS system later when
  creating the <filename>/etc/passwd</filename> file, taking care to assign
  it the same user and group IDs as on the host system. Alternatively,
  assign the contents of the <filename class="directory">/tools</filename>
  directory to user <systemitem class="username">root</systemitem> by running
  the following command:</para>

<screen><userinput>chown -R 0:0 /tools
chown -R 0:0 ${LFS}</userinput></screen>

  <para os="c">The command uses <parameter>0:0</parameter> instead of
  <parameter>root:root</parameter>, because <command>chown</command>
  is unable to resolve the name <quote>root</quote> until the password
  file has been created. This book assumes you ran this
  <command>chown</command> command.</para>

</sect1>
