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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 -->
5<!-- See http://creativecommons.org/licenses/by-sa/2.5 --> 5<!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
6 6
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 $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-config.xml,v 1.110 2012/03/28 22:39:04 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>9.2</version> 17<version>17</version>
18<date>2008-05-02</date> 18<date>2012-03-28</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>
125<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2 125<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
126/dev/sda3 none swap sw 0 0 126/dev/sda3 none swap sw 0 0
127/dev/sda4 / ext3 noatime 0 1 127/dev/sda4 / ext3 noatime 0 1
128 128
129/dev/cdrom /mnt/cdrom auto noauto,user 0 0 129/dev/cdrom /mnt/cdrom auto noauto,user 0 0
130
131proc /proc proc defaults 0 0
132shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
130</pre> 133</pre>
131 134
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'"> 135<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'">
133<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2 136<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
134/dev/sda2 none swap sw 0 0 137/dev/sda2 none swap sw 0 0
135/dev/sda3 / ext3 noatime 0 1 138/dev/sda3 / ext3 noatime 0 1
136 139
137/dev/cdrom /mnt/cdrom auto noauto,user 0 0 140/dev/cdrom /mnt/cdrom auto noauto,user 0 0
141
142proc /proc proc defaults 0 0
143shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
138</pre> 144</pre>
139 145
140<pre caption="A full /etc/fstab example" test="func:keyval('arch')='SPARC'"> 146<pre caption="A full /etc/fstab example" test="func:keyval('arch')='SPARC'">
141/dev/sda1 / ext3 noatime 0 1 147/dev/sda1 / ext3 noatime 0 1
142/dev/sda2 none swap sw 0 0 148/dev/sda2 none swap sw 0 0
146 152
147<comment># You must add the rules for openprom</comment> 153<comment># You must add the rules for openprom</comment>
148openprom /proc/openprom openpromfs defaults 0 0 154openprom /proc/openprom openpromfs defaults 0 0
149 155
150/dev/cdrom /mnt/cdrom auto noauto,user 0 0 156/dev/cdrom /mnt/cdrom auto noauto,user 0 0
157
158proc /proc proc defaults 0 0
159shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
151</pre> 160</pre>
152 161
153<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC' or 162<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC' or
154func:keyval('arch')='PPC64'"> 163func:keyval('arch')='PPC64'">
155/dev/sda4 / ext3 noatime 0 1 164/dev/sda4 / ext3 noatime 0 1
156/dev/sda3 none swap sw 0 0 165/dev/sda3 none swap sw 0 0
157 166
158/dev/cdrom /mnt/cdrom auto noauto,user 0 0 167/dev/cdrom /mnt/cdrom auto noauto,user 0 0
168
169proc /proc proc defaults 0 0
170shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
159</pre> 171</pre>
160 172
161<p> 173<p>
162<c>auto</c> makes <c>mount</c> guess for the filesystem (recommended for 174<c>auto</c> makes <c>mount</c> guess for the filesystem (recommended for
163removable media as they can be created with one of many filesystems) and 175removable media as they can be created with one of many filesystems) and
192</p> 204</p>
193 205
194<pre caption="Setting the host name"> 206<pre caption="Setting the host name">
195# <i>nano -w /etc/conf.d/hostname</i> 207# <i>nano -w /etc/conf.d/hostname</i>
196 208
197<comment>(Set the HOSTNAME variable to your host name)</comment> 209<comment>(Set the hostname variable to your host name)</comment>
198HOSTNAME="<i>tux</i>" 210hostname="<i>tux</i>"
199</pre> 211</pre>
200 212
201<p> 213<p>
202Second, <e>if</e> you need a domainname, set it in <path>/etc/conf.d/net</path>. 214Second, <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 215You only need a domain if your ISP or network administrator says so, or if you
230nis_domain_lo="<i>my-nisdomain</i>" 242nis_domain_lo="<i>my-nisdomain</i>"
231</pre> 243</pre>
232 244
233<note> 245<note>
234For more information on configuring DNS and NIS, please read the examples 246For more information on configuring DNS and NIS, please read the examples
235provided in <path>/etc/conf.d/net.example</path>. Also, you may want to emerge 247provided in <path>/usr/share/doc/openrc-*/net.example.bz2</path> which
248can be read using <c>bzless</c>. Also, you may want to emerge <c>openresolv</c>
236<c>openresolv</c> to help manage your DNS/NIS setup. 249to help manage your DNS/NIS setup.
237</note> 250</note>
238 251
239</body> 252</body>
240</subsection> 253</subsection>
241<subsection> 254<subsection>
258<p> 271<p>
259All networking information is gathered in <path>/etc/conf.d/net</path>. It uses 272All networking information is gathered in <path>/etc/conf.d/net</path>. It uses
260a straightforward yet not intuitive syntax if you don't know how to set up 273a straightforward yet not intuitive syntax if you don't know how to set up
261networking manually. But don't fear, we'll explain everything. A fully 274networking manually. But don't fear, we'll explain everything. A fully
262commented example that covers many different configurations is available in 275commented example that covers many different configurations is available in
263<path>/etc/conf.d/net.example</path>. 276<path>/usr/share/doc/openrc-*/net.example.bz2</path>.
264</p> 277</p>
265 278
266<p> 279<p>
267DHCP is used by default. For DHCP to work, you will need to install a DHCP 280DHCP is used by default. For DHCP to work, you will need to install a DHCP
268client. This is described later in <uri 281client. This is described later in <uri
286</p> 299</p>
287 300
288<pre caption="Default /etc/conf.d/net"> 301<pre caption="Default /etc/conf.d/net">
289# This blank configuration will automatically use DHCP for any net.* 302# This blank configuration will automatically use DHCP for any net.*
290# scripts in /etc/init.d. To create a more complete configuration, 303# scripts in /etc/init.d. To create a more complete configuration,
291# please review /etc/conf.d/net.example and save your configuration 304# please review /usr/share/doc/openrc-*/net.example.bz2 and save
292# in /etc/conf.d/net (this file :]!). 305# your configuration in /etc/conf.d/net (this file :]!).
293</pre> 306</pre>
294 307
295<p> 308<p>
296To enter your own IP address, netmask and gateway, you need 309To enter your own IP address, netmask and gateway, you need
297to set both <c>config_eth0</c> and <c>routes_eth0</c>: 310to set both <c>config_eth0</c> and <c>routes_eth0</c>:
298</p> 311</p>
299 312
300<pre caption="Manually setting IP information for eth0"> 313<pre caption="Manually setting IP information for eth0">
301config_eth0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" ) 314config_eth0="192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255"
302routes_eth0=( "default via 192.168.0.1" ) 315routes_eth0="default via 192.168.0.1"
303</pre> 316</pre>
304 317
305<p> 318<p>
306To use DHCP and add specific DHCP options, define <c>config_eth0</c> and 319To use DHCP, define <c>config_eth0</c>:
307<c>dhcp_eth0</c>:
308</p> 320</p>
309 321
310<pre caption="Automatically obtaining an IP address for eth0"> 322<pre caption="Automatically obtaining an IP address for eth0">
311config_eth0=( "dhcp" ) 323config_eth0="dhcp"
312dhcp_eth0="nodns nontp nonis"
313</pre> 324</pre>
314 325
315<p> 326<p>
316Please read <path>/etc/conf.d/net.example</path> for a list of all available 327Please read <path>/usr/share/doc/openrc-*/net.example.bz2</path> for a
317options. 328list of all available options. Be sure to also read your DHCP client manpage if
329you need to set specific DHCP options.
318</p> 330</p>
319 331
320<p> 332<p>
321If you have several network interfaces repeat the above steps for 333If you have several network interfaces repeat the above steps for
322<c>config_eth1</c>, <c>config_eth2</c>, etc. 334<c>config_eth1</c>, <c>config_eth2</c>, etc.
336To have your network interfaces activated at boot, you need to add them to the 348To have your network interfaces activated at boot, you need to add them to the
337default runlevel. 349default runlevel.
338</p> 350</p>
339 351
340<pre caption="Adding net.eth0 to the default runlevel"> 352<pre caption="Adding net.eth0 to the default runlevel">
353# <i>cd /etc/init.d</i>
354# <i>ln -s net.lo net.eth0</i>
341# <i>rc-update add net.eth0 default</i> 355# <i>rc-update add net.eth0 default</i>
342</pre> 356</pre>
343 357
344<p> 358<p>
345If you have several network interfaces, you need to create the appropriate 359If you have several network interfaces, you need to create the appropriate
346<path>net.eth1</path>, <path>net.eth2</path> etc. initscripts for those. You can 360<path>net.eth1</path>, <path>net.eth2</path> etc. just like you did with
347use <c>ln</c> to do this: 361<path>net.eth0</path>.
348</p>
349
350<pre caption="Creating extra initscripts">
351# <i>cd /etc/init.d</i>
352# <i>ln -s net.lo net.eth1</i>
353# <i>rc-update add net.eth1 default</i>
354</pre> 362</p>
355 363
356</body> 364</body>
357</subsection> 365</subsection>
358<subsection> 366<subsection>
359<title>Writing Down Network Information</title> 367<title>Writing Down Network Information</title>
428<subsection> 436<subsection>
429<title>System Information</title> 437<title>System Information</title>
430<body> 438<body>
431 439
432<p> 440<p>
433Gentoo uses <path>/etc/rc.conf</path> for general, system-wide configuration. 441Gentoo uses <path>/etc/rc.conf</path> and <path>/etc/conf.d/rc</path> to
434Open up <path>/etc/rc.conf</path> and enjoy all the comments in that file :) 442configure the services, startup, and shutdown of your system. Open up
443<path>/etc/rc.conf</path> and <path>/etc/conf.d/rc</path> and enjoy all the
444comments in those files.
435</p> 445</p>
436 446
437<pre caption="Opening /etc/rc.conf"> 447<pre caption="Configuring services">
438# <i>nano -w /etc/rc.conf</i> 448# <i>nano -w /etc/rc.conf</i>
449# <i>nano -w /etc/conf.d/rc</i>
439</pre> 450</pre>
440 451
441<p>
442When you're finished configuring <path>/etc/rc.conf</path>, save and exit.
443</p> 452<p>
444 453When you're finished configuring these two files, save them and exit.
445<p>
446As you can see, this file is well commented to help you set up the necessary
447configuration variables. You can configure your system to use unicode and
448define your default editor and your display manager (like gdm or kdm).
449</p> 454</p>
450 455
451<p> 456<p>
452Gentoo uses <path>/etc/conf.d/keymaps</path> to handle keyboard configuration. 457Gentoo uses <path>/etc/conf.d/keymaps</path> to handle keyboard configuration.
453Edit it to configure your keyboard. 458Edit it to configure your keyboard.
456<pre caption="Opening /etc/conf.d/keymaps"> 461<pre caption="Opening /etc/conf.d/keymaps">
457# <i>nano -w /etc/conf.d/keymaps</i> 462# <i>nano -w /etc/conf.d/keymaps</i>
458</pre> 463</pre>
459 464
460<p> 465<p>
461Take special care with the <c>KEYMAP</c> variable. If you select the wrong 466Take special care with the <c>keymap</c> variable. If you select the wrong
462<c>KEYMAP</c>, you will get weird results when typing on your keyboard. 467<c>keymap</c>, you will get weird results when typing on your keyboard.
463</p> 468</p>
464 469
465<note test="substring(func:keyval('arch'),1,3)='PPC'"> 470<note test="substring(func:keyval('arch'),1,3)='PPC'">
466PPC uses x86 keymaps on most systems. Users who want to be able to use ADB 471PPC uses x86 keymaps on most systems.
467keymaps on boot have to enable ADB keycode sendings in their kernel and have to
468set a mac/ppc keymap in <path>/etc/conf.d/keymaps</path>.
469</note> 472</note>
470 473
471<p> 474<p>
472When you're finished configuring <path>/etc/conf.d/keymaps</path>, save and 475When you're finished configuring <path>/etc/conf.d/keymaps</path>, save and
473exit. 476exit.
474</p> 477</p>
475 478
476<p> 479<p>
477Gentoo uses <path>/etc/conf.d/clock</path> to set clock options. Edit it 480Gentoo uses <path>/etc/conf.d/hwclock</path> to set clock options. Edit it
478according to your needs. 481according to your needs.
479</p> 482</p>
480 483
481<pre caption="Opening /etc/conf.d/clock"> 484<pre caption="Opening /etc/conf.d/hwclock">
482# <i>nano -w /etc/conf.d/clock</i> 485# <i>nano -w /etc/conf.d/hwclock</i>
483</pre> 486</pre>
484 487
485<p> 488<p>
486If your hardware clock is not using UTC, you need to add <c>CLOCK="local"</c> 489If your hardware clock is not using UTC, you need to add <c>clock="local"</c>
487to the file. Otherwise you will notice some clock skew. 490to the file. Otherwise you will notice some clock skew.
488</p> 491</p>
489 492
490<p> 493<p>
494When you're finished configuring <path>/etc/conf.d/hwclock</path>, save and
495exit.
496</p>
497
498<p>
491You should define the timezone that you previously copied to 499You should define the timezone that you previously copied to
492<path>/etc/localtime</path> so that further upgrades of the 500<path>/etc/localtime</path> in the <path>/etc/timezone</path> file so that
493<c>sys-libs/timezone-data</c> package can update <path>/etc/localtime</path> 501further upgrades of the <c>sys-libs/timezone-data</c> package can update
494automatically. For instance, if you used the GMT timezone, you would add 502<path>/etc/localtime</path> automatically. For instance, if you used the
495<c>TIMEZONE="GMT"</c> 503Europe/Brussels timezone, you would write <c>Europe/Brussels</c> in the
496</p> 504<path>/etc/timezone</path> file.
497
498<p>
499When you're finished configuring <path>/etc/conf.d/clock</path>, save and
500exit.
501</p> 505</p>
502 506
503<p test="not(func:keyval('arch')='PPC64')"> 507<p test="not(func:keyval('arch')='PPC64')">
504Please continue with <uri link="?part=1&amp;chap=9">Installing Necessary System 508Please continue with <uri link="?part=1&amp;chap=9">Installing Necessary System
505Tools</uri>. 509Tools</uri>.

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