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2<!DOCTYPE sections SYSTEM "/dtd/book.dtd"> 2<!DOCTYPE sections SYSTEM "/dtd/book.dtd">
3 3
4<!-- The content of this document is licensed under the CC-BY-SA license --> 4<!-- The content of this document is licensed under the CC-BY-SA license -->
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6 6
7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-config.xml,v 1.88 2006/11/28 07:40:38 nightmorph Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-config.xml,v 1.99 2008/05/02 08:04:23 nightmorph Exp $ -->
8 8
9<sections> 9<sections>
10 10
11<abstract> 11<abstract>
12You need to edit some important configuration files. In this chapter 12You need to edit some important configuration files. In this chapter
13you receive an overview of these files and an explanation on how to 13you receive an overview of these files and an explanation on how to
14proceed. 14proceed.
15</abstract> 15</abstract>
16 16
17<version>7.6</version> 17<version>9.2</version>
18<date>2006-11-27</date> 18<date>2008-05-02</date>
19 19
20<section> 20<section>
21<title>Filesystem Information</title> 21<title>Filesystem Information</title>
22<subsection> 22<subsection>
23<title>What is fstab?</title> 23<title>What is fstab?</title>
73</li> 73</li>
74</ul> 74</ul>
75 75
76<impo> 76<impo>
77The default <path>/etc/fstab</path> file provided by Gentoo <e>is not a valid 77The default <path>/etc/fstab</path> file provided by Gentoo <e>is not a valid
78fstab file</e>, You <b>have to create</b> your own <path>/etc/fstab</path>. 78fstab file</e>. You <b>have to create</b> your own <path>/etc/fstab</path>.
79</impo> 79</impo>
80 80
81<pre caption="Opening /etc/fstab"> 81<pre caption="Opening /etc/fstab">
82# <i>nano -w /etc/fstab</i> 82# <i>nano -w /etc/fstab</i>
83</pre> 83</pre>
89Let us take a look at how we write down the options for the <path>/boot</path> 89Let us take a look at how we write down the options for the <path>/boot</path>
90partition. This is just an example, if you didn't or couldn't create a 90partition. This is just an example, if you didn't or couldn't create a
91<path>/boot</path>, don't copy it. 91<path>/boot</path>, don't copy it.
92</p> 92</p>
93 93
94<p test="contains(func:keyval('/boot'), '/dev/hd')">
95In our default <keyval id="arch"/> partitioning example, <path>/boot</path> is
96usually the <path><keyval id="/boot"/></path> partition (or
97<path>/dev/sda*</path> if you use SCSI or SATA drives), with <c>ext2</c> as
98filesystem. It needs to be checked during boot, so we would write down:
99</p> 94<p>
100
101<p test="contains(func:keyval('/boot'), '/dev/sd')">
102In our default <keyval id="arch"/> partitioning example, <path>/boot</path> is 95In our default <keyval id="arch"/> partitioning example, <path>/boot</path> is
103usually the <path><keyval id="/boot"/></path> partition, with <c>ext2</c> as 96usually the <path><keyval id="/boot"/></path> partition, with <c>ext2</c> as
104filesystem. It needs to be checked during boot, so we would write down: 97filesystem. It needs to be checked during boot, so we would write down:
105</p> 98</p>
106 99
116</p> 109</p>
117 110
118</body> 111</body>
119<body> 112<body>
120 113
121<p test="not(func:keyval('arch')='SPARC')"> 114<p>
122Add the rules that match your partitioning scheme and append rules for 115Add the rules that match your partitioning scheme and append rules for
123<path>/proc</path>, <c>tmpfs</c>, for your CD-ROM drive(s), and of course, if
124you have other partitions or drives, for those too.
125</p>
126
127<p test="func:keyval('arch')='SPARC'">
128Add the rules that match your partitioning schema and append rules for
129<path>/proc/openprom</path>, <path>/proc</path>, <c>tmpfs</c> , for your CD-ROM
130drive(s), and of course, if you have other partitions or drives, for those too. 116your CD-ROM drive(s), and of course, if you have other partitions or drives,
117for those too.
131</p> 118</p>
132 119
133<p> 120<p>
134Now use the <e>example</e> below to create your <path>/etc/fstab</path>: 121Now use the <e>example</e> below to create your <path>/etc/fstab</path>:
135</p> 122</p>
136
137<pre caption="A full /etc/fstab example" test="func:keyval('arch')='AMD64' or func:keyval('arch')='x86'">
138<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
139/dev/hda2 none swap sw 0 0
140/dev/hda3 / ext3 noatime 0 1
141
142proc /proc proc defaults 0 0
143shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
144
145/dev/cdrom /mnt/cdrom auto noauto,user 0 0
146</pre>
147 123
148<pre caption="A full /etc/fstab example" test="func:keyval('arch')='HPPA'"> 124<pre caption="A full /etc/fstab example" test="func:keyval('arch')='HPPA'">
149<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2 125<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
150/dev/sda3 none swap sw 0 0 126/dev/sda3 none swap sw 0 0
151/dev/sda4 / ext3 noatime 0 1 127/dev/sda4 / ext3 noatime 0 1
152 128
153proc /proc proc defaults 0 0
154shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
155
156/dev/cdrom /mnt/cdrom auto noauto,user 0 0 129/dev/cdrom /mnt/cdrom auto noauto,user 0 0
157</pre> 130</pre>
158 131
159<pre caption="A full /etc/fstab example" test="func:keyval('arch')='Alpha' or func:keyval('arch')='MIPS'"> 132<pre caption="A full /etc/fstab example" test="func:keyval('arch')='Alpha' or func:keyval('arch')='MIPS' or func:keyval('arch')='x86' or func:keyval('arch')='AMD64'">
160<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2 133<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
161/dev/sda2 none swap sw 0 0 134/dev/sda2 none swap sw 0 0
162/dev/sda3 / ext3 noatime 0 1 135/dev/sda3 / ext3 noatime 0 1
163
164proc /proc proc defaults 0 0
165shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
166 136
167/dev/cdrom /mnt/cdrom auto noauto,user 0 0 137/dev/cdrom /mnt/cdrom auto noauto,user 0 0
168</pre> 138</pre>
169 139
170<pre caption="A full /etc/fstab example" test="func:keyval('arch')='SPARC'"> 140<pre caption="A full /etc/fstab example" test="func:keyval('arch')='SPARC'">
172/dev/sda2 none swap sw 0 0 142/dev/sda2 none swap sw 0 0
173/dev/sda4 /usr ext3 noatime 0 2 143/dev/sda4 /usr ext3 noatime 0 2
174/dev/sda5 /var ext3 noatime 0 2 144/dev/sda5 /var ext3 noatime 0 2
175/dev/sda6 /home ext3 noatime 0 2 145/dev/sda6 /home ext3 noatime 0 2
176 146
147<comment># You must add the rules for openprom</comment>
177openprom /proc/openprom openpromfs defaults 0 0 148openprom /proc/openprom openpromfs defaults 0 0
178proc /proc proc defaults 0 0
179shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
180 149
181/dev/cdrom /mnt/cdrom auto noauto,user 0 0 150/dev/cdrom /mnt/cdrom auto noauto,user 0 0
182</pre> 151</pre>
183 152
184<note test="func:keyval('arch')='PPC'">
185There are important variations between PPC machine types. Please make sure you
186adapt the following example to your system.
187</note>
188
189<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC'"> 153<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC' or
190/dev/hda4 / ext3 noatime 0 1 154func:keyval('arch')='PPC64'">
191/dev/hda3 none swap sw 0 0
192
193proc /proc proc defaults 0 0
194shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
195
196/dev/cdrom /mnt/cdrom auto noauto,user 0 0
197</pre>
198
199<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC64'">
200/dev/sda4 / ext3 noatime 0 1 155/dev/sda4 / ext3 noatime 0 1
201/dev/sda3 none swap sw 0 0 156/dev/sda3 none swap sw 0 0
202
203proc /proc proc defaults 0 0
204shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
205 157
206/dev/cdrom /mnt/cdrom auto noauto,user 0 0 158/dev/cdrom /mnt/cdrom auto noauto,user 0 0
207</pre> 159</pre>
208 160
209<p> 161<p>
245<comment>(Set the HOSTNAME variable to your host name)</comment> 197<comment>(Set the HOSTNAME variable to your host name)</comment>
246HOSTNAME="<i>tux</i>" 198HOSTNAME="<i>tux</i>"
247</pre> 199</pre>
248 200
249<p> 201<p>
250Second we set the domainname in <path>/etc/conf.d/net</path>: 202Second, <e>if</e> you need a domainname, set it in <path>/etc/conf.d/net</path>.
203You only need a domain if your ISP or network administrator says so, or if you
204have a DNS server but not a DHCP server. You don't need to worry about DNS or
205domainnames if your networking is setup for DHCP.
251</p> 206</p>
252 207
253<pre caption="Setting the domainname"> 208<pre caption="Setting the domainname">
254# <i>nano -w /etc/conf.d/net</i> 209# <i>nano -w /etc/conf.d/net</i>
255 210
256<comment>(Set the dns_domain variable to your domain name)</comment> 211<comment>(Set the dns_domain variable to your domain name)</comment>
257dns_domain_lo="<i>homenetwork</i>" 212dns_domain_lo="<i>homenetwork</i>"
258</pre> 213</pre>
214
215<note>
216If you choose not to set a domainname, you can get rid of the "This is
217hostname.(none)" messages at your login screen by editing
218<path>/etc/issue</path>. Just delete the string <c>.\O</c> from that file.
219</note>
259 220
260<p> 221<p>
261If you have a NIS domain (if you don't know what that is, then you don't have 222If you have a NIS domain (if you don't know what that is, then you don't have
262one), you need to define that one too: 223one), you need to define that one too:
263</p> 224</p>
270</pre> 231</pre>
271 232
272<note> 233<note>
273For more information on configuring DNS and NIS, please read the examples 234For more information on configuring DNS and NIS, please read the examples
274provided in <path>/etc/conf.d/net.example</path>. Also, you may want to emerge 235provided in <path>/etc/conf.d/net.example</path>. Also, you may want to emerge
275<c>resolvconf-gentoo</c> to help manage your DNS/NIS setup. 236<c>openresolv</c> to help manage your DNS/NIS setup.
276</note> 237</note>
277 238
278</body> 239</body>
279</subsection> 240</subsection>
280<subsection> 241<subsection>
336to set both <c>config_eth0</c> and <c>routes_eth0</c>: 297to set both <c>config_eth0</c> and <c>routes_eth0</c>:
337</p> 298</p>
338 299
339<pre caption="Manually setting IP information for eth0"> 300<pre caption="Manually setting IP information for eth0">
340config_eth0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" ) 301config_eth0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" )
341routes_eth0=( "default gw 192.168.0.1" ) 302routes_eth0=( "default via 192.168.0.1" )
342</pre> 303</pre>
343 304
344<p> 305<p>
345To use DHCP and add specific DHCP options, define <c>config_eth0</c> and 306To use DHCP and add specific DHCP options, define <c>config_eth0</c> and
346<c>dhcp_eth0</c>: 307<c>dhcp_eth0</c>:
371<title>Automatically Start Networking at Boot</title> 332<title>Automatically Start Networking at Boot</title>
372<body> 333<body>
373 334
374<p> 335<p>
375To have your network interfaces activated at boot, you need to add them to the 336To have your network interfaces activated at boot, you need to add them to the
376default runlevel. If you have PCMCIA interfaces you should skip this action as 337default runlevel.
377the PCMCIA interfaces are started by the PCMCIA init script.
378</p> 338</p>
379 339
380<pre caption="Adding net.eth0 to the default runlevel"> 340<pre caption="Adding net.eth0 to the default runlevel">
381# <i>rc-update add net.eth0 default</i> 341# <i>rc-update add net.eth0 default</i>
382</pre> 342</pre>
436<subsection test="func:keyval('arch')='AMD64' or func:keyval('arch')='x86' or substring(func:keyval('arch'),1,3)='PPC'"> 396<subsection test="func:keyval('arch')='AMD64' or func:keyval('arch')='x86' or substring(func:keyval('arch'),1,3)='PPC'">
437<title>Optional: Get PCMCIA Working</title> 397<title>Optional: Get PCMCIA Working</title>
438<body> 398<body>
439 399
440<p> 400<p>
441PCMCIA-users should first install the <c>pcmcia-cs</c> package. This also 401PCMCIA users should first install the <c>pcmciautils</c> package.
442includes users who will be working with a 2.6 kernel (even though they won't be
443using the PCMCIA drivers from this package). The <c>USE="-X"</c> is necessary
444to avoid installing xorg-x11 at this moment:
445</p> 402</p>
446 403
447<pre caption="Installing pcmcia-cs"> 404<pre caption="Installing pcmciautils">
448# <i>USE="-X" emerge pcmcia-cs</i> 405# <i>emerge pcmciautils</i>
449</pre>
450
451<p>
452When <c>pcmcia-cs</c> is installed, add <c>pcmcia</c> to the <e>default</e>
453runlevel:
454</p>
455
456<pre caption="Adding pcmcia to the default runlevel">
457# <i>rc-update add pcmcia default</i>
458</pre> 406</pre>
459 407
460</body> 408</body>
461</subsection> 409</subsection>
462</section> 410</section>
471First we set the root password by typing: 419First we set the root password by typing:
472</p> 420</p>
473 421
474<pre caption="Setting the root password"> 422<pre caption="Setting the root password">
475# <i>passwd</i> 423# <i>passwd</i>
476</pre>
477
478<p>
479If you want root to be able to log on through the serial console, add
480<c>tts/0</c> to <path>/etc/securetty</path>:
481</p>
482
483<pre caption="Adding tts/0 to /etc/securetty">
484# <i>echo "tts/0" &gt;&gt; /etc/securetty</i>
485</pre> 424</pre>
486 425
487</body> 426</body>
488</subsection> 427</subsection>
489<subsection> 428<subsection>
520 459
521<p> 460<p>
522Take special care with the <c>KEYMAP</c> variable. If you select the wrong 461Take special care with the <c>KEYMAP</c> variable. If you select the wrong
523<c>KEYMAP</c>, you will get weird results when typing on your keyboard. 462<c>KEYMAP</c>, you will get weird results when typing on your keyboard.
524</p> 463</p>
525
526<note test="func:keyval('arch')='SPARC'">
527Users of USB-based SPARC systems and SPARC clones might need to select an i386
528keymap (such as "us") instead of "sunkeymap".
529</note>
530 464
531<note test="substring(func:keyval('arch'),1,3)='PPC'"> 465<note test="substring(func:keyval('arch'),1,3)='PPC'">
532PPC uses x86 keymaps on most systems. Users who want to be able to use ADB 466PPC uses x86 keymaps on most systems. Users who want to be able to use ADB
533keymaps on boot have to enable ADB keycode sendings in their kernel and have to 467keymaps on boot have to enable ADB keycode sendings in their kernel and have to
534set a mac/ppc keymap in <path>/etc/conf.d/keymaps</path>. 468set a mac/ppc keymap in <path>/etc/conf.d/keymaps</path>.
552If your hardware clock is not using UTC, you need to add <c>CLOCK="local"</c> 486If your hardware clock is not using UTC, you need to add <c>CLOCK="local"</c>
553to the file. Otherwise you will notice some clock skew. 487to the file. Otherwise you will notice some clock skew.
554</p> 488</p>
555 489
556<p> 490<p>
491You should define the timezone that you previously copied to
492<path>/etc/localtime</path> so that further upgrades of the
493<c>sys-libs/timezone-data</c> package can update <path>/etc/localtime</path>
494automatically. For instance, if you used the GMT timezone, you would add
495<c>TIMEZONE="GMT"</c>
496</p>
497
498<p>
557When you're finished configuring <path>/etc/conf.d/clock</path>, save and 499When you're finished configuring <path>/etc/conf.d/clock</path>, save and
558exit. 500exit.
559</p> 501</p>
560 502
561<p test="not(func:keyval('arch')='PPC64')"> 503<p test="not(func:keyval('arch')='PPC64')">

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