[673b0d8] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[8ef8304] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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[673b0d8] | 4 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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[8ef8304] | 7 |
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[673b0d8] | 8 | <sect1 id="ch-system-changingowner">
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[8ef8304] | 9 | <?dbhtml filename="changingowner.html"?>
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| 10 |
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| 11 | <title>Changing Ownership</title>
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[673b0d8] | 12 |
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[8ef8304] | 13 | <para>Currently, the <filename class="directory">/tools</filename> directory
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| 14 | is owned by the user <systemitem class="username">lfs</systemitem>, a user
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| 15 | that exists only on the host system. Although the <filename
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| 16 | class="directory">/tools</filename> directory can be deleted once the LFS
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| 17 | system has been finished, it can be retained to build additional LFS systems.
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| 18 | If the <filename class="directory">/tools</filename> directory is kept as is,
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| 19 | the files are owned by a user ID without a corresponding account. This is
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| 20 | dangerous because a user account created later could get this same user ID
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| 21 | and would own the <filename class="directory">/tools</filename> directory
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| 22 | and all the files therein, thus exposing these files to possible malicious
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| 23 | manipulation.</para>
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[81fd230] | 24 |
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[8ef8304] | 25 | <para>To avoid this issue, add the <systemitem class="username">lfs</systemitem>
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| 26 | user to the new LFS system later when creating the
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| 27 | <filename>/etc/passwd</filename> file, taking care to assign it the same user
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| 28 | and group IDs as on the host system. Alternatively, assign the contents of
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| 29 | the <filename class="directory">/tools</filename> directory to user
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| 30 | <systemitem class="username">root</systemitem> by running the following
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| 31 | command:</para>
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[673b0d8] | 32 |
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| 33 | <screen><userinput>chown -R 0:0 /tools</userinput></screen>
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| 34 |
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[8ef8304] | 35 | <para>The command uses <parameter>0:0</parameter> instead of
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| 36 | <parameter>root:root</parameter>, because <command>chown</command>
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| 37 | is unable to resolve the name <quote>root</quote> until the
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| 38 | <filename>passwd</filename> file has been created.</para>
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[81fd230] | 39 |
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[673b0d8] | 40 | </sect1>
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