source: BOOK/chroot/common/changingowner.xml@ bf3d9d64

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<sect1 id="ch-chroot-changingowner">
  <?dbhtml filename="changingowner.html"?>

  <title>Changing Ownership</title>

    <para>Currently, the <filename class="directory">/tools</filename>
    and <filename class="directory">/cross-tools</filename> directories
    are owned by the user <emphasis>lfs</emphasis>, a user that
    exists only on the host system. Although the <filename
    class="directory">/tools</filename> and <filename
    class="directory">/cross-tools</filename> directories can be deleted
    once the LFS system has been finished, they can be retained to build
    additional LFS systems. If the <filename class="directory">/tools</filename>
    and <filename class="directory">/cross-tools</filename> directories are
    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
    lass="directory">/tools</filename> directory and all the files therein,
    thus exposing these files to possible malicious manipulation.</para>

    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
    href="../../boot/common/changingowner.xml"
    xpointer="xpointer(//*[@os='d'])"/>

    <screen><userinput>chown -R 0:0 /tools
    chown -R 0:0 /cross-tools</userinput></screen>

    <para>The commands use <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 these
    <command>chown</command> commands.</para>

</sect1>