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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 1.79 2006/08/02 21:28:12 neysx Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-config.xml,v 1.92 2007/05/20 04:16:25 nightmorph Exp $ -->
8 8
9<sections> 9<sections>
10 10
11<abstract>
12You need to edit some important configuration files. In this chapter
13you receive an overview of these files and an explanation on how to
14proceed.
15</abstract>
16
11<version>2.20</version> 17<version>8.2</version>
12<date>2006-07-28</date> 18<date>2007-05-19</date>
13 19
14<section> 20<section>
15<title>Filesystem Information</title> 21<title>Filesystem Information</title>
16<subsection> 22<subsection>
17<title>What is fstab?</title> 23<title>What is fstab?</title>
67</li> 73</li>
68</ul> 74</ul>
69 75
70<impo> 76<impo>
71The 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
72fstab 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>.
73</impo> 79</impo>
74 80
75<pre caption="Opening /etc/fstab"> 81<pre caption="Opening /etc/fstab">
76# <i>nano -w /etc/fstab</i> 82# <i>nano -w /etc/fstab</i>
77</pre> 83</pre>
131<pre caption="A full /etc/fstab example" test="func:keyval('arch')='AMD64' or func:keyval('arch')='x86'"> 137<pre caption="A full /etc/fstab example" test="func:keyval('arch')='AMD64' or func:keyval('arch')='x86'">
132<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2 138<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
133/dev/hda2 none swap sw 0 0 139/dev/hda2 none swap sw 0 0
134/dev/hda3 / ext3 noatime 0 1 140/dev/hda3 / ext3 noatime 0 1
135 141
136none /proc proc defaults 0 0 142proc /proc proc nodev,nosuid,noexec 0 0
137none /dev/shm tmpfs nodev,nosuid,noexec 0 0 143shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
138 144
139/dev/cdrom /mnt/cdrom auto noauto,user 0 0 145/dev/cdrom /mnt/cdrom auto noauto,user 0 0
140</pre> 146</pre>
141 147
142<pre caption="A full /etc/fstab example" test="func:keyval('arch')='HPPA'"> 148<pre caption="A full /etc/fstab example" test="func:keyval('arch')='HPPA'">
143<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2 149<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
144/dev/sda3 none swap sw 0 0 150/dev/sda3 none swap sw 0 0
145/dev/sda4 / ext3 noatime 0 1 151/dev/sda4 / ext3 noatime 0 1
146 152
147none /proc proc defaults 0 0 153proc /proc proc nodev,nosuid,noexec 0 0
148none /dev/shm tmpfs nodev,nosuid,noexec 0 0 154shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
149 155
150/dev/cdrom /mnt/cdrom auto noauto,user 0 0 156/dev/cdrom /mnt/cdrom auto noauto,user 0 0
151</pre> 157</pre>
152 158
153<pre caption="A full /etc/fstab example" test="func:keyval('arch')='Alpha' or func:keyval('arch')='MIPS'"> 159<pre caption="A full /etc/fstab example" test="func:keyval('arch')='Alpha' or func:keyval('arch')='MIPS'">
154<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2 160<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
155/dev/sda2 none swap sw 0 0 161/dev/sda2 none swap sw 0 0
156/dev/sda3 / ext3 noatime 0 1 162/dev/sda3 / ext3 noatime 0 1
157 163
158none /proc proc defaults 0 0 164proc /proc proc nodev,nosuid,noexec 0 0
159none /dev/shm tmpfs nodev,nosuid,noexec 0 0 165shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
160 166
161/dev/cdrom /mnt/cdrom auto noauto,user 0 0 167/dev/cdrom /mnt/cdrom auto noauto,user 0 0
162</pre> 168</pre>
163 169
164<pre caption="A full /etc/fstab example" test="func:keyval('arch')='SPARC'"> 170<pre caption="A full /etc/fstab example" test="func:keyval('arch')='SPARC'">
166/dev/sda2 none swap sw 0 0 172/dev/sda2 none swap sw 0 0
167/dev/sda4 /usr ext3 noatime 0 2 173/dev/sda4 /usr ext3 noatime 0 2
168/dev/sda5 /var ext3 noatime 0 2 174/dev/sda5 /var ext3 noatime 0 2
169/dev/sda6 /home ext3 noatime 0 2 175/dev/sda6 /home ext3 noatime 0 2
170 176
171none /proc/openprom openpromfs defaults 0 0 177openprom /proc/openprom openpromfs defaults 0 0
172none /proc proc defaults 0 0 178proc /proc proc nodev,nosuid,noexec 0 0
173none /dev/shm tmpfs nodev,nosuid,noexec 0 0 179shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
174 180
175/dev/cdrom /mnt/cdrom auto noauto,user 0 0 181/dev/cdrom /mnt/cdrom auto noauto,user 0 0
176</pre> 182</pre>
177 183
178<note test="func:keyval('arch')='PPC'"> 184<note test="func:keyval('arch')='PPC'">
182 188
183<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC'"> 189<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC'">
184/dev/hda4 / ext3 noatime 0 1 190/dev/hda4 / ext3 noatime 0 1
185/dev/hda3 none swap sw 0 0 191/dev/hda3 none swap sw 0 0
186 192
187none /proc proc defaults 0 0 193proc /proc proc nodev,nosuid,noexec 0 0
188none /dev/shm tmpfs nodev,nosuid,noexec 0 0 194shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
189 195
190/dev/cdrom /mnt/cdrom auto noauto,user 0 0 196/dev/cdrom /mnt/cdrom auto noauto,user 0 0
191</pre> 197</pre>
192 198
193<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC64'"> 199<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC64'">
194/dev/sda4 / ext3 noatime 0 1 200/dev/sda4 / ext3 noatime 0 1
195/dev/sda3 none swap sw 0 0 201/dev/sda3 none swap sw 0 0
196 202
197none /proc proc defaults 0 0 203proc /proc proc nodev,nosuid,noexec 0 0
198none /dev/shm tmpfs nodev,nosuid,noexec 0 0 204shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
199 205
200/dev/cdrom /mnt/cdrom auto noauto,user 0 0 206/dev/cdrom /mnt/cdrom auto noauto,user 0 0
201</pre> 207</pre>
202 208
203<p> 209<p>
220</subsection> 226</subsection>
221</section> 227</section>
222<section> 228<section>
223<title>Networking Information</title> 229<title>Networking Information</title>
224<subsection> 230<subsection>
225<title>Host name</title> 231<title>Host name, Domainname, etc</title>
226<body> 232<body>
227 233
228<p> 234<p>
229One of the choices the user has to make is name his/her PC. This seems to be 235One of the choices the user has to make is name his/her PC. This seems to be
230quite easy, but <e>lots</e> of users are having difficulties finding the 236quite easy, but <e>lots</e> of users are having difficulties finding the
238 244
239<comment>(Set the HOSTNAME variable to your host name)</comment> 245<comment>(Set the HOSTNAME variable to your host name)</comment>
240HOSTNAME="<i>tux</i>" 246HOSTNAME="<i>tux</i>"
241</pre> 247</pre>
242 248
249<p>
250Second, <e>if</e> you need a domainname, set it in <path>/etc/conf.d/net</path>.
251You only need a domain if your ISP or network administrator says so, or if you
252have a DNS server but not a DHCP server. You don't need to worry about DNS or
253domainnames if your networking is setup for DHCP.
254</p>
255
256<pre caption="Setting the domainname">
257# <i>nano -w /etc/conf.d/net</i>
258
259<comment>(Set the dns_domain variable to your domain name)</comment>
260dns_domain_lo="<i>homenetwork</i>"
261</pre>
262
263<note>
264If you choose not to set a domainname, you can get rid of the "This is
265hostname.(none)" messages at your login screen by editing
266<path>/etc/issue</path>. Just delete the string <c>.\O</c> from that file.
267</note>
268
269<p>
270If you have a NIS domain (if you don't know what that is, then you don't have
271one), you need to define that one too:
272</p>
273
274<pre caption="Setting the NIS domainname">
275# <i>nano -w /etc/conf.d/net</i>
276
277<comment>(Set the nis_domain variable to your NIS domain name)</comment>
278nis_domain_lo="<i>my-nisdomain</i>"
279</pre>
280
281<note>
282For more information on configuring DNS and NIS, please read the examples
283provided in <path>/etc/conf.d/net.example</path>. Also, you may want to emerge
284<c>resolvconf-gentoo</c> to help manage your DNS/NIS setup.
285</note>
286
243</body> 287</body>
244</subsection> 288</subsection>
245<subsection> 289<subsection>
246<title>Configuring your Network</title> 290<title>Configuring your Network</title>
247<body> 291<body>
266commented example that covers many different configurations is available in 310commented example that covers many different configurations is available in
267<path>/etc/conf.d/net.example</path>. 311<path>/etc/conf.d/net.example</path>.
268</p> 312</p>
269 313
270<p> 314<p>
271DHCP is used by default and does not require any further configuration. 315DHCP is used by default. For DHCP to work, you will need to install a DHCP
316client. This is described later in <uri
317link="?part=1&amp;chap=9#networking-tools">Installing Necessary System
318Tools</uri>. Do not forget to install a DHCP client.
272</p> 319</p>
273 320
274<p> 321<p>
275If you need to configure your network connection either because you need 322If you need to configure your network connection either because you need
276specific DHCP options or because you do not use DHCP at all, open 323specific DHCP options or because you do not use DHCP at all, open
298to set both <c>config_eth0</c> and <c>routes_eth0</c>: 345to set both <c>config_eth0</c> and <c>routes_eth0</c>:
299</p> 346</p>
300 347
301<pre caption="Manually setting IP information for eth0"> 348<pre caption="Manually setting IP information for eth0">
302config_eth0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" ) 349config_eth0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" )
303routes_eth0=( "default gw 192.168.0.1" ) 350routes_eth0=( "default via 192.168.0.1" )
304</pre> 351</pre>
305 352
306<p> 353<p>
307To use DHCP and add specific DHCP options, define <c>config_eth0</c> and 354To use DHCP and add specific DHCP options, define <c>config_eth0</c> and
308<c>dhcp_eth0</c>: 355<c>dhcp_eth0</c>:
333<title>Automatically Start Networking at Boot</title> 380<title>Automatically Start Networking at Boot</title>
334<body> 381<body>
335 382
336<p> 383<p>
337To have your network interfaces activated at boot, you need to add them to the 384To have your network interfaces activated at boot, you need to add them to the
338default runlevel. If you have PCMCIA interfaces you should skip this action as 385default runlevel.
339the PCMCIA interfaces are started by the PCMCIA init script.
340</p> 386</p>
341 387
342<pre caption="Adding net.eth0 to the default runlevel"> 388<pre caption="Adding net.eth0 to the default runlevel">
343# <i>rc-update add net.eth0 default</i> 389# <i>rc-update add net.eth0 default</i>
344</pre> 390</pre>
349use <c>ln</c> to do this: 395use <c>ln</c> to do this:
350</p> 396</p>
351 397
352<pre caption="Creating extra initscripts"> 398<pre caption="Creating extra initscripts">
353# <i>cd /etc/init.d</i> 399# <i>cd /etc/init.d</i>
354# <i>ln -s net.eth0 net.eth1</i> 400# <i>ln -s net.lo net.eth1</i>
355# <i>rc-update add net.eth1 default</i> 401# <i>rc-update add net.eth1 default</i>
356</pre> 402</pre>
357 403
358</body> 404</body>
359</subsection> 405</subsection>
398<subsection test="func:keyval('arch')='AMD64' or func:keyval('arch')='x86' or substring(func:keyval('arch'),1,3)='PPC'"> 444<subsection test="func:keyval('arch')='AMD64' or func:keyval('arch')='x86' or substring(func:keyval('arch'),1,3)='PPC'">
399<title>Optional: Get PCMCIA Working</title> 445<title>Optional: Get PCMCIA Working</title>
400<body> 446<body>
401 447
402<p> 448<p>
403PCMCIA-users should first install the <c>pcmcia-cs</c> package. This also 449PCMCIA users should first install the <c>pcmciautils</c> package.
404includes users who will be working with a 2.6 kernel (even though they won't be
405using the PCMCIA drivers from this package). The <c>USE="-X"</c> is necessary
406to avoid installing xorg-x11 at this moment:
407</p> 450</p>
408 451
409<pre caption="Installing pcmcia-cs"> 452<pre caption="Installing pcmciautils">
410# <i>USE="-X" emerge pcmcia-cs</i> 453# <i>emerge pcmciautils</i>
411</pre>
412
413<p>
414When <c>pcmcia-cs</c> is installed, add <c>pcmcia</c> to the <e>default</e>
415runlevel:
416</p>
417
418<pre caption="Adding pcmcia to the default runlevel">
419# <i>rc-update add pcmcia default</i>
420</pre> 454</pre>
421 455
422</body> 456</body>
423</subsection> 457</subsection>
424</section> 458</section>
482 516
483<p> 517<p>
484Take special care with the <c>KEYMAP</c> variable. If you select the wrong 518Take special care with the <c>KEYMAP</c> variable. If you select the wrong
485<c>KEYMAP</c>, you will get weird results when typing on your keyboard. 519<c>KEYMAP</c>, you will get weird results when typing on your keyboard.
486</p> 520</p>
487
488<note test="func:keyval('arch')='SPARC'">
489Users of USB-based SPARC systems and SPARC clones might need to select an i386
490keymap (such as "us") instead of "sunkeymap".
491</note>
492 521
493<note test="substring(func:keyval('arch'),1,3)='PPC'"> 522<note test="substring(func:keyval('arch'),1,3)='PPC'">
494PPC uses x86 keymaps on most systems. Users who want to be able to use ADB 523PPC uses x86 keymaps on most systems. Users who want to be able to use ADB
495keymaps on boot have to enable ADB keycode sendings in their kernel and have to 524keymaps on boot have to enable ADB keycode sendings in their kernel and have to
496set a mac/ppc keymap in <path>/etc/conf.d/keymaps</path>. 525set a mac/ppc keymap in <path>/etc/conf.d/keymaps</path>.
509<pre caption="Opening /etc/conf.d/clock"> 538<pre caption="Opening /etc/conf.d/clock">
510# <i>nano -w /etc/conf.d/clock</i> 539# <i>nano -w /etc/conf.d/clock</i>
511</pre> 540</pre>
512 541
513<p> 542<p>
514If your hardware clock is not using UTC, you need to add <c>CLOCK="local"</c> to 543If your hardware clock is not using UTC, you need to add <c>CLOCK="local"</c>
515the file. Otherwise you will notice some clock skew. Furthermore, Windows 544to the file. Otherwise you will notice some clock skew.
516assumes that your hardware clock uses local time, so if you want to dualboot,
517you should set this variable appropriately, otherwise your clock will go crazy.
518</p> 545</p>
519 546
520<p> 547<p>
521When you're finished configuring <path>/etc/conf.d/clock</path>, save and 548When you're finished configuring <path>/etc/conf.d/clock</path>, save and
522exit. 549exit.

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