source: BOOK/final-preps/addinguser.xml@ 4e977d2

clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 4e977d2 was a1ffe3e, checked in by Chris Staub <chris@…>, 13 years ago

Tweaked text about clfs user and package building assumptions

  • Property mode set to 100644
File size: 3.9 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
8<sect1 id="ch-final-preps-addinguser">
9 <?dbhtml filename="addinguser.html"?>
10
11 <title>Adding the CLFS User</title>
12
13 <para>When logged in as user <systemitem class="username">root</systemitem>,
14 making a single mistake can damage or destroy a system. Therefore, we
15 recommend building the packages as an unprivileged user.
16 You could use your own user name, but to make it easier to set up a clean
17 work environment, create a new user called <systemitem
18 class="username">clfs</systemitem> as a member of a new group (also named
19 <systemitem class="groupname">clfs</systemitem>) and use this user during
20 the installation process. As <systemitem class="username">root</systemitem>,
21 issue the following commands to add the new user:</para>
22
23<screen><userinput>groupadd clfs
24useradd -s /bin/bash -g clfs -d /home/clfs clfs
25mkdir -pv /home/clfs
26chown -v clfs:clfs /home/clfs</userinput></screen>
27
28 <variablelist>
29 <title>The meaning of the command line options:</title>
30
31 <varlistentry>
32 <term><parameter>-s /bin/bash</parameter></term>
33 <listitem>
34 <para>This makes <command>bash</command> the default shell for
35 user <systemitem class="username">clfs</systemitem>.</para>
36
37 <important>
38 <para>The build instructions assume that the <command>bash</command>
39 shell is in use.</para>
40 </important>
41
42 </listitem>
43 </varlistentry>
44
45 <varlistentry>
46 <term><parameter>-g clfs</parameter></term>
47 <listitem>
48 <para>This option adds user <systemitem class="username">clfs</systemitem>
49 to group <systemitem class="groupname">clfs</systemitem>.</para>
50 </listitem>
51 </varlistentry>
52
53 <varlistentry>
54 <term><parameter>clfs</parameter></term>
55 <listitem>
56 <para>This is the actual name for the created group and user.</para>
57 </listitem>
58 </varlistentry>
59
60 </variablelist>
61
62 <para>To log in as <systemitem class="username">clfs</systemitem> (as
63 opposed to switching to user <systemitem class="username">clfs</systemitem>
64 when logged in as <systemitem class="username">root</systemitem>, which
65 does not require the <systemitem class="username">clfs</systemitem> user
66 to have a password), give <systemitem class="username">clfs</systemitem>
67 a password:</para>
68
69<screen><userinput>passwd clfs</userinput></screen>
70
71 <para>Grant <systemitem class="username">clfs</systemitem> full access to
72 <filename class="directory">${CLFS}/cross-tools</filename> and
73 <filename class="directory">${CLFS}/tools</filename> by making <systemitem
74 class="username">clfs</systemitem> the directorys' owner:</para>
75
76<screen><userinput>chown -v clfs ${CLFS}/tools
77chown -v clfs ${CLFS}/cross-tools</userinput></screen>
78
79 <para>If a separate working directory was created as suggested,
80 give user <systemitem class="username">clfs</systemitem> ownership of this directory:</para>
81
82<screen><userinput>chown -v clfs ${CLFS}/sources</userinput></screen>
83
84 <para>Next, login as user <systemitem class="username">clfs</systemitem>.
85 This can be done via a virtual console, through a display manager, or
86 with the following substitute user command:</para>
87
88<screen><userinput>su - clfs</userinput></screen>
89
90 <para>The <quote><parameter>-</parameter></quote> instructs
91 <command>su</command> to start a login shell as opposed to a non-login
92 shell. The difference between these two types of shells can be found
93 in detail in <filename>bash(1)</filename> and <command>info
94 bash</command>.</para>
95
96 <note>
97 <para>Until specified otherwise, all commands from this point on
98 should be done as the <systemitem class="username">clfs</systemitem>
99 user.</para>
100 </note>
101
102</sect1>
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