| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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| 3 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 4 | %general-entities;
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| 5 | ]>
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| 6 | <sect1 id="ch-tools-addinguser">
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| 7 | <title>Adding the user lfs</title>
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| 8 | <?dbhtml filename="addinguser.html"?>
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| 9 |
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| 10 | <para>When logged in as <emphasis>root</emphasis>, making a single mistake
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| 11 | can damage or even wreck your system. Therefore we recommend that you
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| 12 | build the packages in this chapter as an unprivileged user. You could
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| 13 | of course use your own user name, but to make it easier to set up a clean
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| 14 | work environment we'll create a new user <emphasis>lfs</emphasis> as a
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| 15 | member of a new group (also named <emphasis>lfs</emphasis>) and
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| 16 | use this one during the installation process. As <emphasis>root</emphasis>,
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| 17 | issue the following commands to add the new user:</para>
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| 18 |
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| 19 | <screen><userinput>groupadd lfs
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| 20 | useradd -s /bin/bash -g lfs -m -k /dev/null lfs</userinput></screen>
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| 21 |
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| 22 | <para>The meaning of the switches:</para>
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| 23 |
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| 24 | <variablelist>
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| 25 | <varlistentry>
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| 26 | <term><parameter>-s /bin/bash</parameter></term>
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| 27 | <listitem><para>This makes
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| 28 | <command>bash</command> the default shell for user
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| 29 | <emphasis>lfs</emphasis>.</para></listitem>
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| 30 | </varlistentry>
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| 31 |
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| 32 | <varlistentry>
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| 33 | <term><parameter>-g lfs</parameter></term>
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| 34 | <listitem><para>This adds user <emphasis>lfs</emphasis> to group
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| 35 | <emphasis>lfs</emphasis></para></listitem>
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| 36 | </varlistentry>
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| 37 |
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| 38 | <varlistentry>
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| 39 | <term><parameter>-m</parameter></term>
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| 40 | <listitem><para>This creates a home
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| 41 | directory for <emphasis>lfs</emphasis>.</para></listitem>
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| 42 | </varlistentry>
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| 43 |
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| 44 | <varlistentry>
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| 45 | <term><parameter>-k /dev/null</parameter></term>
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| 46 | <listitem><para>This parameter
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| 47 | prevents possible copying of files from a skeleton directory (default
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| 48 | is <filename class="directory">/etc/skel</filename>) by changing the input location to
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| 49 | the special null device.</para></listitem>
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| 50 | </varlistentry>
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| 51 | </variablelist>
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| 52 |
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| 53 | <para>If you want to be able to log in as <emphasis>lfs</emphasis>, then give
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| 54 | <emphasis>lfs</emphasis> a password:</para>
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| 55 |
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| 56 | <screen><userinput>passwd lfs</userinput></screen>
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| 57 |
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| 58 | <para>and grant <emphasis>lfs</emphasis> full access to
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| 59 | <filename class="directory">$LFS/tools</filename> by making
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| 60 | <emphasis>lfs</emphasis> the directory owner:</para>
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| 61 |
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| 62 | <screen><userinput>chown lfs $LFS/tools</userinput></screen>
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| 63 |
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| 64 | <para>If you made a separate working directory as suggested, give user
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| 65 | <emphasis>lfs</emphasis> ownership of this directory too:</para>
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| 66 |
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| 67 | <screen><userinput>chown lfs $LFS/sources</userinput></screen>
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| 68 |
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| 69 | <para>Next, login as user <emphasis>lfs</emphasis>. This can be done via a
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| 70 | virtual console, through a display manager, or with the following substitute
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| 71 | user command:</para>
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| 72 |
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| 73 | <screen><userinput>su - lfs</userinput></screen>
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| 74 |
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| 75 | <para>The <quote><parameter>-</parameter></quote> instructs <command>su</command> to
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| 76 | start a <emphasis>login</emphasis> shell.</para>
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| 77 |
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| 78 | </sect1>
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