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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 1.96 2008/02/29 15:54:59 swift Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-config.xml,v 1.103 2011/08/02 17:43:17 jkt 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>8.3</version> 17<version>10</version>
18<date>2007-08-01</date> 18<date>2011-08-02</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>
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
123your CD-ROM drive(s), and of course, if you have other partitions or drives, 116your CD-ROM drive(s), and of course, if you have other partitions or drives,
124for those too. 117for those too.
125</p> 118</p>
126 119
127<p test="func:keyval('arch')='SPARC'">
128Add the rules that match your partitioning schema and append rules for
129<path>/proc/openprom</path>, for your CD-ROM drive(s), and of course, if
130you have other partitions or drives, for those too.
131</p>
132
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
142/dev/cdrom /mnt/cdrom auto noauto,user 0 0
143</pre>
144 123
145<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'">
146<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2 125<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
147/dev/sda3 none swap sw 0 0 126/dev/sda3 none swap sw 0 0
148/dev/sda4 / ext3 noatime 0 1 127/dev/sda4 / ext3 noatime 0 1
149 128
150/dev/cdrom /mnt/cdrom auto noauto,user 0 0 129/dev/cdrom /mnt/cdrom auto noauto,user 0 0
151</pre>
152 130
131proc /proc proc defaults 0 0
132shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
133</pre>
134
153<pre caption="A full /etc/fstab example" test="func:keyval('arch')='Alpha' or func:keyval('arch')='MIPS'"> 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'">
154<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2 136<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
155/dev/sda2 none swap sw 0 0 137/dev/sda2 none swap sw 0 0
156/dev/sda3 / ext3 noatime 0 1 138/dev/sda3 / ext3 noatime 0 1
157 139
158/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
159</pre> 144</pre>
160 145
161<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'">
162/dev/sda1 / ext3 noatime 0 1 147/dev/sda1 / ext3 noatime 0 1
163/dev/sda2 none swap sw 0 0 148/dev/sda2 none swap sw 0 0
164/dev/sda4 /usr ext3 noatime 0 2 149/dev/sda4 /usr ext3 noatime 0 2
165/dev/sda5 /var ext3 noatime 0 2 150/dev/sda5 /var ext3 noatime 0 2
166/dev/sda6 /home ext3 noatime 0 2 151/dev/sda6 /home ext3 noatime 0 2
167 152
153<comment># You must add the rules for openprom</comment>
168openprom /proc/openprom openpromfs defaults 0 0 154openprom /proc/openprom openpromfs defaults 0 0
169 155
170/dev/cdrom /mnt/cdrom auto noauto,user 0 0 156/dev/cdrom /mnt/cdrom auto noauto,user 0 0
171</pre>
172 157
173<note test="func:keyval('arch')='PPC'"> 158proc /proc proc defaults 0 0
174There are important variations between PPC machine types. Please make sure you 159shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
175adapt the following example to your system. 160</pre>
176</note>
177 161
178<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC'"> 162<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC' or
179/dev/hda4 / ext3 noatime 0 1 163func:keyval('arch')='PPC64'">
180/dev/hda3 none swap sw 0 0
181
182/dev/cdrom /mnt/cdrom auto noauto,user 0 0
183</pre>
184
185<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC64'">
186/dev/sda4 / ext3 noatime 0 1 164/dev/sda4 / ext3 noatime 0 1
187/dev/sda3 none swap sw 0 0 165/dev/sda3 none swap sw 0 0
188 166
189/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
190</pre> 171</pre>
191 172
192<p> 173<p>
193<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
194removable 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
262</pre> 243</pre>
263 244
264<note> 245<note>
265For more information on configuring DNS and NIS, please read the examples 246For more information on configuring DNS and NIS, please read the examples
266provided in <path>/etc/conf.d/net.example</path>. Also, you may want to emerge 247provided in <path>/etc/conf.d/net.example</path>. Also, you may want to emerge
267<c>resolvconf-gentoo</c> to help manage your DNS/NIS setup. 248<c>openresolv</c> to help manage your DNS/NIS setup.
268</note> 249</note>
269 250
270</body> 251</body>
271</subsection> 252</subsection>
272<subsection> 253<subsection>
332config_eth0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" ) 313config_eth0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" )
333routes_eth0=( "default via 192.168.0.1" ) 314routes_eth0=( "default via 192.168.0.1" )
334</pre> 315</pre>
335 316
336<p> 317<p>
337To use DHCP and add specific DHCP options, define <c>config_eth0</c> and 318To use DHCP, define <c>config_eth0</c>:
338<c>dhcp_eth0</c>:
339</p> 319</p>
340 320
341<pre caption="Automatically obtaining an IP address for eth0"> 321<pre caption="Automatically obtaining an IP address for eth0">
342config_eth0=( "dhcp" ) 322config_eth0=( "dhcp" )
343dhcp_eth0="nodns nontp nonis"
344</pre> 323</pre>
345 324
346<p> 325<p>
347Please read <path>/etc/conf.d/net.example</path> for a list of all available 326Please read <path>/etc/conf.d/net.example</path> for a list of all available
348options. 327options. Be sure to also read your DHCP client manpage if you need to set
328specific DHCP options.
349</p> 329</p>
350 330
351<p> 331<p>
352If you have several network interfaces repeat the above steps for 332If you have several network interfaces repeat the above steps for
353<c>config_eth1</c>, <c>config_eth2</c>, etc. 333<c>config_eth1</c>, <c>config_eth2</c>, etc.
367To have your network interfaces activated at boot, you need to add them to the 347To have your network interfaces activated at boot, you need to add them to the
368default runlevel. 348default runlevel.
369</p> 349</p>
370 350
371<pre caption="Adding net.eth0 to the default runlevel"> 351<pre caption="Adding net.eth0 to the default runlevel">
352# <i>cd /etc/init.d</i>
353# <i>ln -s net.lo net.eth0</i>
372# <i>rc-update add net.eth0 default</i> 354# <i>rc-update add net.eth0 default</i>
373</pre> 355</pre>
374 356
375<p> 357<p>
376If you have several network interfaces, you need to create the appropriate 358If you have several network interfaces, you need to create the appropriate
377<path>net.eth1</path>, <path>net.eth2</path> etc. initscripts for those. You can 359<path>net.eth1</path>, <path>net.eth2</path> etc. just like you did with
378use <c>ln</c> to do this: 360<path>net.eth0</path>.
379</p>
380
381<pre caption="Creating extra initscripts">
382# <i>cd /etc/init.d</i>
383# <i>ln -s net.lo net.eth1</i>
384# <i>rc-update add net.eth1 default</i>
385</pre> 361</p>
386 362
387</body> 363</body>
388</subsection> 364</subsection>
389<subsection> 365<subsection>
390<title>Writing Down Network Information</title> 366<title>Writing Down Network Information</title>
492Take special care with the <c>KEYMAP</c> variable. If you select the wrong 468Take special care with the <c>KEYMAP</c> variable. If you select the wrong
493<c>KEYMAP</c>, you will get weird results when typing on your keyboard. 469<c>KEYMAP</c>, you will get weird results when typing on your keyboard.
494</p> 470</p>
495 471
496<note test="substring(func:keyval('arch'),1,3)='PPC'"> 472<note test="substring(func:keyval('arch'),1,3)='PPC'">
497PPC uses x86 keymaps on most systems. Users who want to be able to use ADB 473PPC uses x86 keymaps on most systems.
498keymaps on boot have to enable ADB keycode sendings in their kernel and have to
499set a mac/ppc keymap in <path>/etc/conf.d/keymaps</path>.
500</note> 474</note>
501 475
502<p> 476<p>
503When you're finished configuring <path>/etc/conf.d/keymaps</path>, save and 477When you're finished configuring <path>/etc/conf.d/keymaps</path>, save and
504exit. 478exit.
521<p> 495<p>
522You should define the timezone that you previously copied to 496You should define the timezone that you previously copied to
523<path>/etc/localtime</path> so that further upgrades of the 497<path>/etc/localtime</path> so that further upgrades of the
524<c>sys-libs/timezone-data</c> package can update <path>/etc/localtime</path> 498<c>sys-libs/timezone-data</c> package can update <path>/etc/localtime</path>
525automatically. For instance, if you used the GMT timezone, you would add 499automatically. For instance, if you used the GMT timezone, you would add
526<c>TIMEZONE="GMT"</c>. 500<c>TIMEZONE="GMT"</c>
527</p> 501</p>
528 502
529<p> 503<p>
530When you're finished configuring <path>/etc/conf.d/clock</path>, save and 504When you're finished configuring <path>/etc/conf.d/clock</path>, save and
531exit. 505exit.

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