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Revision 1.3 - (show annotations) (download) (as text)
Mon Jun 7 08:59:39 2010 UTC (4 years, 3 months ago) by nightmorph
Branch: MAIN
Changes since 1.2: +5 -5 lines
File MIME type: application/xml
remove qt3 USE flag now that nothing uses it

1 <?xml version='1.0' encoding="UTF-8"?>
2 <!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/gentoo-x86-quickinstall-after-reboot.xml,v 1.2 2008/03/30 22:08:04 nightmorph Exp $ -->
3 <!DOCTYPE included SYSTEM "/dtd/guide.dtd">
4
5 <included>
6
7 <version>3</version>
8 <date>2010-06-07</date>
9
10 <section id="after-reboot">
11 <title>Finalizing the Installation</title>
12 <body>
13
14 <note>
15 The <b>total</b> elapsed time between the display of the boot prompt on the
16 minimal CD and the display of the login prompt after the reboot was
17 <b>00:42:31</b> on our test box. Yes, less than one hour! Note that this time
18 also includes the stage3, Portage snapshot and several packages download time
19 and the time spent configuring the kernel.
20 </note>
21
22 <p>
23 Log in as <c>root</c>, then add one or more users for daily use with
24 <c>useradd</c>.
25 </p>
26
27 <pre caption="Connect to your new box from another PC">
28 <comment>(Clean up your known_hosts file because your new box
29 has generated a new definitive hostkey)</comment>
30 $ <i>nano -w ~/.ssh/known_hosts</i>
31 <comment>(Look for the IP of your new PC and delete the line,
32 then save the file and exit nano)</comment>
33
34 <comment>(Use the IP address of your new box)</comment>
35 $ <i>ssh root@192.168.1.10</i>
36 The authenticity of host '192.168.1.10 (192.168.1.10)' can't be established.
37 RSA key fingerprint is 96:e7:2d:12:ac:9c:b0:94:90:9f:40:89:b0:45:26:8f.
38 Are you sure you want to continue connecting (yes/no)? <i>yes</i>
39 Warning: Permanently added '192.168.1.10' (RSA) to the list of known hosts.
40 Password: <comment>type_the_password</comment>
41 </pre>
42
43 <pre caption="Add a new user">
44 mybox ~ # <i>adduser -g users -G lp,wheel,audio,cdrom,portage,cron -m john</i>
45 mybox ~ # <i>passwd john</i>
46 New UNIX password: <comment>Set John's password</comment>
47 Retype new UNIX password: <comment>Type John's password again</comment>
48 passwd: password updated successfully
49 </pre>
50
51 </body>
52 </section>
53 <section>
54 <title>Last configuration touches</title>
55 <body>
56
57 <p>
58 Start by selecting nearby mirrors either by defining the <c>SYNC</c> and
59 <c>GENTOO_MIRRORS</c> variables in <path>/etc/make.conf</path> or by using
60 <c>mirrorselect</c>. You can also define the number of concurrent compilation
61 processes at this point.
62 </p>
63
64 <pre caption="Use mirrorselect and set MAKEOPTS">
65 mybox ~ # <i>emerge mirrorselect</i>
66 mybox ~ # <i>mirrorselect -i -o >> /etc/make.conf</i>
67 mybox ~ # <i>mirrorselect -i -r -o >> /etc/make.conf</i>
68 <comment>(Usually, (the number of processors + 1) is a good value)</comment>
69 mybox ~ # <i>echo 'MAKEOPTS="-j2"' >> /etc/make.conf</i>
70 </pre>
71
72 <p>
73 Now is a good time to enable or disable some USE flags. Run <c>emerge -vpe
74 world</c> to list all currently installed packages and their enabled and
75 disabled USE flags. Either edit <path>/etc/make.conf</path> or use the
76 following command to define the USE variable:
77 </p>
78
79 <pre caption="View USE flags in use and enable or disable some">
80 mybox ~ # <i>emerge -vpe world</i>
81 <comment>(Portage displays the packages and their USE flags, as an example, let's
82 disable ipv6 and fortran, and enable unicode)</comment>
83 mybox ~ # <i>echo 'USE="nptl nptlonly -ipv6 -fortran unicode"' >> /etc/make.conf</i>
84 </pre>
85
86 <p>
87 Recent versions of glibc use <path>/etc/locale.gen</path> to define locale
88 settings.
89 </p>
90
91 <pre caption="Define locales">
92 mybox ~ # <i>cd /etc</i>
93 mybox etc # <i>nano -w locale.gen</i>
94 mybox etc # <i>locale-gen</i>
95 </pre>
96
97 <p>
98 Last but not least, you may want to alter the <c>CFLAGS</c> variable in your
99 <path>/etc/make.conf</path> to optimise the code to your specific needs. Please
100 note that using a long list of flags is rarely needed and can even lead to a
101 broken system. It is recommended to specify the processor type in the
102 <c>march</c> option and stick to <c>-O2 -pipe</c>.
103 </p>
104
105 <p>
106 You may also want to switch to <b>~x86</b>. You should only do this if you can
107 deal with the odd broken ebuild or package. If you'd rather keep your system
108 stable, <e>don't</e> add the <c>ACCEPT_KEYWORDS</c> variable. Adding
109 <c>FEATURES="ccache"</c> is also a good idea.
110 </p>
111
112 <pre caption="Last edit of make.conf">
113 mybox etc # <i>nano -w make.conf</i>
114 <comment>(Set -march to your CPU type in CFLAGS)</comment>
115 CFLAGS="-O2 -march=<i>athlon-xp</i> -pipe"
116 <comment>(Add the following line)</comment>
117 FEATURES="ccache"
118 <comment>(Only add the following if you know what you're doing)</comment>
119 ACCEPT_KEYWORDS="~x86"
120 </pre>
121
122 <p>
123 You might want to recompile your whole system twice to make full use of your
124 latest configuration changes. It would take quite a long time to complete and
125 yield minimal speed benefits. You can let your system optimise itself gradually
126 over time when new versions of packages are released. However, recompiling is
127 a still good idea from the standpoint of maintaining system consistency. Please
128 see the <uri link="/doc/en/gcc-upgrading.xml">Gentoo GCC Upgrading Guide</uri>
129 for a discussion on the benefits of ensuring a consistently built system and
130 world.
131 </p>
132
133 <p>
134 Recompiling only the packages that have already been updated since the release
135 or that are affected by your new USE flags will take enough time. You might
136 also have to remove packages that block your upgrade. Look for "[blocks
137 <brite>B</brite> ]" in the output of <c>emerge -vpuD --newuse world</c> and
138 use <c>emerge -C</c> to remove them.
139 </p>
140
141 <pre caption="Update your packages">
142 <comment>(Install ccache)</comment>
143 mybox etc # <i>emerge ccache</i>
144
145 <comment>(Please note that the switch to ~x86 causes many packages to be upgraded)</comment>
146 mybox etc # <i>emerge -vpuD --newuse world</i>
147 <comment>(Take a good look at the package list and their USE flags,
148 remove blocking packages if any, and start the lengthy process)</comment>
149 mybox etc # <i>time emerge -vuD --newuse world</i>
150 <comment>(79 packages have been (re)compiled)</comment>
151
152 real 180m13.276s
153 user 121m22.905s
154 sys 36m31.472s
155
156 <comment>(Remerge libtool to avoid further potential problems)</comment>
157 mybox etc # <i>emerge --oneshot libtool</i>
158
159 <comment>(Update config files, make sure you <b>do not</b> let dispatch-conf
160 update config files you have edited)</comment>
161 mybox etc # <i>dispatch-conf</i>
162
163 <comment>(If perl has been updated, you should run the perl-cleaner script)</comment>
164 mybox etc # <i>time perl-cleaner all</i>
165 real 1m6.495s
166 user 0m42.699s
167 sys 0m10.641s
168
169 <comment>(In case of a major upgrade of python, you should run the python-updater script)</comment>
170 mybox etc # <i>python-updater</i>
171 </pre>
172
173 </body>
174 </section>
175 <section>
176 <title>What to do next</title>
177 <body>
178
179 <p>
180 Depending on what your new Gentoo machine is supposed to do, you will probably
181 want to install server applications or a desktop system. Just as an example,
182 <c>emerge gnome</c> and <c>emerge kde</c> have been timed on the ~x86 system
183 installed as describe above. Both have been installed from the same starting
184 point.
185 </p>
186
187 <p>
188 You should check our <uri link="/doc/en/">documentation index</uri> to find out
189 how to install and configure the applications of your choice.
190 </p>
191
192 <impo>
193 The following is only an example. It is in no way meant as a recommended setup.
194 </impo>
195
196 <pre caption="Emerge GNOME">
197 mybox etc # <i>emerge -vp gnome</i>
198 <comment>(Look at the list of packages and their USE flags,
199 then edit make.conf if required.</comment>
200 mybox etc # <i>nano -w /etc/make.conf</i>
201 <comment>(The following USE flags have been defined)</comment>
202 USE="nptl nptlonly -ipv6 -fortran unicode svg hal dbus \
203 -kde -qt4 -arts -eds -esd gnome gstreamer gtk firefox"
204
205 mybox etc # <i>time emerge gnome</i>
206 <comment>(326 packages have been emerged)</comment>
207
208 real 520m44.532s
209 user 339m21.144s
210 sys 146m22.337s
211 </pre>
212
213 <pre caption="Emerge KDE">
214 mybox etc # <i>emerge -vp kde-meta</i>
215 <comment>(Look at the list of packages and their USE flags,
216 then edit make.conf if required.</comment>
217 mybox etc # <i>nano -w /etc/make.conf</i>
218 <comment>The following USE flags have been defined)</comment>
219 USE="nptl nptlonly -ipv6 -fortran unicode svg hal dbus \
220 kde qt4 -arts -eds -esd -gnome -gstreamer -gtk -firefox"
221
222 mybox etc # <i>time emerge kde-meta</i>
223 <comment>(391 packages have been emerged)</comment>
224
225 real 1171m25.318s
226 user 851m26.393s
227 sys 281m45.629s
228 </pre>
229
230 </body>
231 </section>
232
233 </included>

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