1 | <?xml version="1.0" encoding="ISO-8859-1"?>
|
---|
2 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
|
---|
3 | <!ENTITY % general-entities SYSTEM "../general.ent">
|
---|
4 | %general-entities;
|
---|
5 | ]>
|
---|
6 | <chapter id="chapter-building-system" xreflabel="Chapter 6">
|
---|
7 | <?dbhtml dir="chapter06"?>
|
---|
8 | <title>Installing basic system software</title>
|
---|
9 | <?dbhtml filename="chapter06.html"?>
|
---|
10 |
|
---|
11 |
|
---|
12 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="introduction.xml"/>
|
---|
13 |
|
---|
14 |
|
---|
15 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="proc.xml"/>
|
---|
16 |
|
---|
17 |
|
---|
18 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="chroot.xml"/>
|
---|
19 |
|
---|
20 |
|
---|
21 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="changingowner.xml"/>
|
---|
22 |
|
---|
23 |
|
---|
24 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="creatingdirs.xml"/>
|
---|
25 |
|
---|
26 |
|
---|
27 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="createfiles.xml"/>
|
---|
28 |
|
---|
29 |
|
---|
30 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="pwdgroup.xml"/>
|
---|
31 |
|
---|
32 |
|
---|
33 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="makedev.xml"/>
|
---|
34 |
|
---|
35 |
|
---|
36 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="kernel-headers.xml"/>
|
---|
37 |
|
---|
38 |
|
---|
39 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="man-pages.xml"/>
|
---|
40 |
|
---|
41 |
|
---|
42 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="glibc.xml"/>
|
---|
43 |
|
---|
44 |
|
---|
45 |
|
---|
46 |
|
---|
47 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="readjusting.xml"/>
|
---|
48 |
|
---|
49 |
|
---|
50 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="binutils.xml"/>
|
---|
51 |
|
---|
52 |
|
---|
53 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gcc.xml"/>
|
---|
54 |
|
---|
55 |
|
---|
56 |
|
---|
57 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="coreutils.xml"/>
|
---|
58 |
|
---|
59 |
|
---|
60 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="zlib.xml"/>
|
---|
61 |
|
---|
62 |
|
---|
63 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="mktemp.xml"/>
|
---|
64 |
|
---|
65 |
|
---|
66 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="iana-etc.xml"/>
|
---|
67 |
|
---|
68 |
|
---|
69 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="findutils.xml"/>
|
---|
70 |
|
---|
71 |
|
---|
72 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gawk.xml"/>
|
---|
73 |
|
---|
74 |
|
---|
75 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="ncurses.xml"/>
|
---|
76 |
|
---|
77 |
|
---|
78 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="vim.xml"/>
|
---|
79 |
|
---|
80 |
|
---|
81 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="m4.xml"/>
|
---|
82 |
|
---|
83 |
|
---|
84 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="bison.xml"/>
|
---|
85 |
|
---|
86 |
|
---|
87 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="less.xml"/>
|
---|
88 |
|
---|
89 |
|
---|
90 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="groff.xml"/>
|
---|
91 |
|
---|
92 |
|
---|
93 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="sed.xml"/>
|
---|
94 |
|
---|
95 |
|
---|
96 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="flex.xml"/>
|
---|
97 |
|
---|
98 |
|
---|
99 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gettext.xml"/>
|
---|
100 |
|
---|
101 |
|
---|
102 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="net-tools.xml"/>
|
---|
103 |
|
---|
104 |
|
---|
105 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="inetutils.xml"/>
|
---|
106 |
|
---|
107 |
|
---|
108 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="perl.xml"/>
|
---|
109 |
|
---|
110 |
|
---|
111 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="texinfo.xml"/>
|
---|
112 |
|
---|
113 |
|
---|
114 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="autoconf.xml"/>
|
---|
115 |
|
---|
116 |
|
---|
117 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="automake.xml"/>
|
---|
118 |
|
---|
119 |
|
---|
120 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="bash.xml"/>
|
---|
121 |
|
---|
122 |
|
---|
123 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="file.xml"/>
|
---|
124 |
|
---|
125 |
|
---|
126 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libtool.xml"/>
|
---|
127 |
|
---|
128 |
|
---|
129 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="bzip2.xml"/>
|
---|
130 |
|
---|
131 |
|
---|
132 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="diffutils.xml"/>
|
---|
133 |
|
---|
134 |
|
---|
135 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="ed.xml"/>
|
---|
136 |
|
---|
137 |
|
---|
138 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="kbd.xml"/>
|
---|
139 |
|
---|
140 |
|
---|
141 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="e2fsprogs.xml"/>
|
---|
142 |
|
---|
143 |
|
---|
144 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="grep.xml"/>
|
---|
145 |
|
---|
146 |
|
---|
147 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="grub.xml"/>
|
---|
148 |
|
---|
149 |
|
---|
150 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gzip.xml"/>
|
---|
151 |
|
---|
152 |
|
---|
153 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="man.xml"/>
|
---|
154 |
|
---|
155 |
|
---|
156 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="make.xml"/>
|
---|
157 |
|
---|
158 |
|
---|
159 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="modutils.xml"/>
|
---|
160 |
|
---|
161 |
|
---|
162 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="patch.xml"/>
|
---|
163 |
|
---|
164 |
|
---|
165 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="procinfo.xml"/>
|
---|
166 |
|
---|
167 |
|
---|
168 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="procps.xml"/>
|
---|
169 |
|
---|
170 |
|
---|
171 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="psmisc.xml"/>
|
---|
172 |
|
---|
173 |
|
---|
174 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="shadow.xml"/>
|
---|
175 |
|
---|
176 |
|
---|
177 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="sysklogd.xml"/>
|
---|
178 |
|
---|
179 |
|
---|
180 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="sysvinit.xml"/>
|
---|
181 |
|
---|
182 |
|
---|
183 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="tar.xml"/>
|
---|
184 |
|
---|
185 |
|
---|
186 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="util-linux.xml"/>
|
---|
187 |
|
---|
188 |
|
---|
189 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gcc-2953.xml"/>
|
---|
190 |
|
---|
191 |
|
---|
192 |
|
---|
193 |
|
---|
194 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="aboutdebug.xml"/>
|
---|
195 |
|
---|
196 |
|
---|
197 | <sect1 id="ch-system-strippingagain">
|
---|
198 | <title>Stripping again</title>
|
---|
199 | <?dbhtml filename="strippingagain.html"?>
|
---|
200 |
|
---|
201 | <para>If you are not a programmer and don't plan to do any debugging on your
|
---|
202 | system software, you can shrink your system by about 200 MB by removing the
|
---|
203 | debugging symbols from binaries and libraries. This causes no inconvenience
|
---|
204 | other than not being able to debug the software fully any more.</para>
|
---|
205 |
|
---|
206 | <para>Most people who use the command mentioned below don't experience any
|
---|
207 | problems. But it is easy to make a typo and render your new system unusable, so
|
---|
208 | before running the strip command it is probably a good idea to make a backup of
|
---|
209 | the current situation.</para>
|
---|
210 |
|
---|
211 | <para>If you are going to perform the stripping, special care is needed to
|
---|
212 | ensure you're not running any of the binaries that are about to be stripped.
|
---|
213 | If you're not sure whether you entered chroot with the command given in
|
---|
214 | <xref linkend="ch-system-chroot"/>, then first exit from chroot:</para>
|
---|
215 |
|
---|
216 | <screen><userinput>logout</userinput></screen>
|
---|
217 |
|
---|
218 | <para>Then reenter it with:</para>
|
---|
219 |
|
---|
220 | <screen><userinput>chroot $LFS /tools/bin/env -i \
|
---|
221 | HOME=/root TERM=$TERM PS1='\u:\w\$ ' \
|
---|
222 | PATH=/bin:/usr/bin:/sbin:/usr/sbin \
|
---|
223 | /tools/bin/bash --login</userinput></screen>
|
---|
224 |
|
---|
225 | <para>Now you can safely strip the binaries and libraries:</para>
|
---|
226 |
|
---|
227 | <screen><userinput>/tools/bin/find /{,usr/}{bin,lib,sbin} -type f \
|
---|
228 | -exec /tools/bin/strip --strip-debug '{}' ';'</userinput></screen>
|
---|
229 |
|
---|
230 | <para>A large number of files will be reported as having their file format not
|
---|
231 | recognized. These warnings can be safely ignored, they just mean that those
|
---|
232 | files are scripts instead of binaries, no harm is done.</para>
|
---|
233 |
|
---|
234 | <para>If you are really tight on disk space, you may want to use
|
---|
235 | <emphasis>--strip-all</emphasis> on the binaries in
|
---|
236 | <filename>/{,usr/}{bin,sbin}</filename> to gain several more megabytes. But do
|
---|
237 | <emphasis>not</emphasis> use this option on libraries: they would be
|
---|
238 | destroyed.</para>
|
---|
239 |
|
---|
240 | </sect1>
|
---|
241 |
|
---|
242 |
|
---|
243 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="revisedchroot.xml"/>
|
---|
244 |
|
---|
245 | </chapter>
|
---|