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1<?xml version='1.0' encoding='UTF-8'?> 1<?xml version='1.0' encoding='UTF-8'?>
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/1.0 --> 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 1.59 2005/04/21 13:27:19 swift Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-config.xml,v 1.97 2008/04/01 08:53:46 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>2.2</version> 17<version>9.0</version>
12<date>2005-04-20</date> 18<date>2008-04-01</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>
18<body> 24<body>
19 25
20<p> 26<p>
21Under Linux, all partitions used by the system must be listed in 27Under Linux, all partitions used by the system must be listed in
22<path>/etc/fstab</path>. This file contains the mountpoints of those partitions 28<path>/etc/fstab</path>. This file contains the mount points of those partitions
23(where they are seen in the file system structure), how they should be mounted 29(where they are seen in the file system structure), how they should be mounted
24and with what special options (automatically or not, whether users can mount 30and with what special options (automatically or not, whether users can mount
25them or not, etc.) 31them or not, etc.)
26</p> 32</p>
27 33
41<li> 47<li>
42 The first field shows the <b>partition</b> described (the path to the device 48 The first field shows the <b>partition</b> described (the path to the device
43 file) 49 file)
44</li> 50</li>
45<li> 51<li>
46 The second field shows the <b>mountpoint</b> at which the partition should be 52 The second field shows the <b>mount point</b> at which the partition should be
47 mounted 53 mounted
48</li> 54</li>
49<li> 55<li>
50 The third field shows the <b>filesystem</b> used by the partition 56 The third field shows the <b>filesystem</b> used by the partition
51</li> 57</li>
52<li> 58<li>
53 The fourth field shows the <b>mountoptions</b> used by <c>mount</c> when it 59 The fourth field shows the <b>mount options</b> used by <c>mount</c> when it
54 wants to mount the partition. As every filesystem has its own mountoptions, 60 wants to mount the partition. As every filesystem has its own mount options,
55 you are encouraged to read the mount man page (<c>man mount</c>) for a full 61 you are encouraged to read the mount man page (<c>man mount</c>) for a full
56 listing. Multiple mountoptions are comma-separated. 62 listing. Multiple mount options are comma-separated.
57</li> 63</li>
58<li> 64<li>
59 The fifth field is used by <c>dump</c> to determine if the partition needs to 65 The fifth field is used by <c>dump</c> to determine if the partition needs to
60 be <b>dump</b>ed or not. You can generally leave this as <c>0</c> (zero). 66 be <b>dump</b>ed or not. You can generally leave this as <c>0</c> (zero).
61</li> 67</li>
65 The root filesystem should have <c>1</c> while the rest should have <c>2</c> 71 The root filesystem should have <c>1</c> while the rest should have <c>2</c>
66 (or <c>0</c> if a filesystem check isn't necessary). 72 (or <c>0</c> if a filesystem check isn't necessary).
67</li> 73</li>
68</ul> 74</ul>
69 75
70<p> 76<impo>
71The default <path>/etc/fstab</path> file provided by Gentoo <e>is no valid fstab 77The default <path>/etc/fstab</path> file provided by Gentoo <e>is not a valid
72file</e>, so start <c>nano</c> (or your favorite editor) to create your 78fstab file</e>. You <b>have to create</b> your own <path>/etc/fstab</path>.
73<path>/etc/fstab</path>: 79</impo>
74</p>
75 80
76<pre caption="Opening /etc/fstab"> 81<pre caption="Opening /etc/fstab">
77# <i>nano -w /etc/fstab</i> 82# <i>nano -w /etc/fstab</i>
78</pre> 83</pre>
79 84
85</body>
86<body test="func:keyval('/boot')">
87
80<p> 88<p>
81Let 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>
82partition. This is just an example, so if your architecture doesn't require a 90partition. This is just an example, if you didn't or couldn't create a
83<path>/boot</path> partition (such as <b>PPC</b>), don't copy it verbatim. 91<path>/boot</path>, don't copy it.
84</p>
85
86<p> 92</p>
93
94<p test="contains(func:keyval('/boot'), '/dev/hd')">
87In our default x86 partitioning example <path>/boot</path> is the 95In our default <keyval id="arch"/> partitioning example, <path>/boot</path> is
88<path>/dev/hda1</path> partition, with <c>ext2</c> as filesystem. 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
89It needs to be checked during boot, so we would write down: 98filesystem. It needs to be checked during boot, so we would write down:
99</p>
100
101<p test="contains(func:keyval('/boot'), '/dev/sd')">
102In our default <keyval id="arch"/> partitioning example, <path>/boot</path> is
103usually 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:
90</p> 105</p>
91 106
92<pre caption="An example /boot line for /etc/fstab"> 107<pre caption="An example /boot line for /etc/fstab">
93/dev/hda1 /boot ext2 defaults 1 2 108<keyval id="/boot"/> /boot ext2 defaults 1 2
94</pre> 109</pre>
95 110
96<p> 111<p>
97Some users don't want their <path>/boot</path> partition to be mounted 112Some users don't want their <path>/boot</path> partition to be mounted
98automatically to improve their system's security. Those people should 113automatically to improve their system's security. Those people should
99substitute <c>defaults</c> with <c>noauto</c>. This does mean that you need to 114substitute <c>defaults</c> with <c>noauto</c>. This does mean that you need to
100manually mount this partition every time you want to use it. 115manually mount this partition every time you want to use it.
101</p> 116</p>
102 117
118</body>
119<body>
120
121<p test="not(func:keyval('arch')='SPARC')">
122Add 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,
124for those too.
103<p> 125</p>
104Now, to improve performance, most users would want to add the <c>noatime</c>
105option as mountoption, which results in a faster system since access times
106aren't registered (you don't need those generally anyway):
107</p>
108 126
109<pre caption="An improved /boot line for /etc/fstab"> 127<p test="func:keyval('arch')='SPARC'">
110/dev/hda1 /boot ext2 defaults,noatime 1 2 128Add the rules that match your partitioning schema and append rules for
111</pre> 129<path>/proc/openprom</path>, for your CD-ROM drive(s), and of course, if
112 130you have other partitions or drives, for those too.
113<p> 131</p>
114If we continue with this, we would end up with the following three lines (for 132
115<path>/boot</path>, <path>/</path> and the swap partition):
116</p> 133<p>
117 134Now use the <e>example</e> below to create your <path>/etc/fstab</path>:
118<pre caption="Three /etc/fstab lines">
119/dev/hda1 /boot ext2 defaults,noatime 1 2
120/dev/hda2 none swap sw 0 0
121/dev/hda3 / ext3 noatime 0 1
122</pre>
123
124<p> 135</p>
125To finish up, you should add a rule for <path>/proc</path>, <c>tmpfs</c>
126(required) and for your CD-ROM drive (and of course, if you have other
127partitions or drives, for those too):
128</p>
129 136
130<pre caption="A full /etc/fstab example"> 137<pre caption="A full /etc/fstab example" test="func:keyval('arch')='AMD64' or func:keyval('arch')='x86'">
131/dev/hda1 /boot ext2 defaults,noatime 1 2 138<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
132/dev/hda2 none swap sw 0 0 139/dev/hda2 none swap sw 0 0
133/dev/hda3 / ext3 noatime 0 1 140/dev/hda3 / ext3 noatime 0 1
134 141
135none /proc proc defaults 0 0 142/dev/cdrom /mnt/cdrom auto noauto,user 0 0
136none /dev/shm tmpfs nodev,nosuid,noexec 0 0 143</pre>
137 144
145<pre caption="A full /etc/fstab example" test="func:keyval('arch')='HPPA'">
146<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
147/dev/sda3 none swap sw 0 0
148/dev/sda4 / ext3 noatime 0 1
149
150/dev/cdrom /mnt/cdrom auto noauto,user 0 0
151</pre>
152
153<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
155/dev/sda2 none swap sw 0 0
156/dev/sda3 / ext3 noatime 0 1
157
158/dev/cdrom /mnt/cdrom auto noauto,user 0 0
159</pre>
160
161<pre caption="A full /etc/fstab example" test="func:keyval('arch')='SPARC'">
162/dev/sda1 / ext3 noatime 0 1
163/dev/sda2 none swap sw 0 0
164/dev/sda4 /usr ext3 noatime 0 2
165/dev/sda5 /var ext3 noatime 0 2
166/dev/sda6 /home ext3 noatime 0 2
167
168openprom /proc/openprom openpromfs defaults 0 0
169
138/dev/cdroms/cdrom0 /mnt/cdrom auto noauto,user 0 0 170/dev/cdrom /mnt/cdrom auto noauto,user 0 0
171</pre>
172
173<note test="func:keyval('arch')='PPC'">
174There are important variations between PPC machine types. Please make sure you
175adapt the following example to your system.
176</note>
177
178<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC'">
179/dev/hda4 / ext3 noatime 0 1
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
187/dev/sda3 none swap sw 0 0
188
189/dev/cdrom /mnt/cdrom auto noauto,user 0 0
139</pre> 190</pre>
140 191
141<p> 192<p>
142<c>auto</c> makes <c>mount</c> guess for the filesystem (recommended for 193<c>auto</c> makes <c>mount</c> guess for the filesystem (recommended for
143removable media as they can be created with one of many filesystems) and 194removable media as they can be created with one of many filesystems) and
144<c>user</c> makes it possible for non-root users to mount the CD. 195<c>user</c> makes it possible for non-root users to mount the CD.
145</p> 196</p>
146 197
147<p> 198<p>
148Now use the above example to create your <path>/etc/fstab</path>. If you are a 199To improve performance, most users would want to add the <c>noatime</c>
149<b>SPARC</b>-user, you should add the following line to your 200mount option, which results in a faster system since access times
150<path>/etc/fstab</path> 201aren't registered (you don't need those generally anyway).
151too:
152</p>
153
154<pre caption="Adding openprom filesystem to /etc/fstab">
155none /proc/openprom openpromfs defaults 0 0
156</pre> 202</p>
157 203
158<p> 204<p>
159Double-check your <path>/etc/fstab</path>, save and quit to continue. 205Double-check your <path>/etc/fstab</path>, save and quit to continue.
160</p> 206</p>
161 207
163</subsection> 209</subsection>
164</section> 210</section>
165<section> 211<section>
166<title>Networking Information</title> 212<title>Networking Information</title>
167<subsection> 213<subsection>
168<title>Hostname, Domainname etc.</title> 214<title>Host name, Domainname, etc</title>
169<body> 215<body>
170 216
171<p> 217<p>
172One of the choices the user has to make is name his/her PC. This seems to be 218One of the choices the user has to make is name his/her PC. This seems to be
173quite easy, but <e>lots</e> of users are having difficulties finding the 219quite easy, but <e>lots</e> of users are having difficulties finding the
174appropriate name for their Linux-pc. To speed things up, know that any name you 220appropriate name for their Linux-pc. To speed things up, know that any name you
175choose can be changed afterwards. For all we care, you can just call your system 221choose can be changed afterwards. For all we care, you can just call your system
176<c>tux</c> and domain <c>homenetwork</c>. 222<c>tux</c> and domain <c>homenetwork</c>.
177</p> 223</p>
178 224
179<p>
180We use these values in the next examples. First we set the hostname:
181</p>
182
183<pre caption="Setting the hostname"> 225<pre caption="Setting the host name">
184# <i>echo tux &gt; /etc/hostname</i> 226# <i>nano -w /etc/conf.d/hostname</i>
185</pre>
186 227
228<comment>(Set the HOSTNAME variable to your host name)</comment>
229HOSTNAME="<i>tux</i>"
230</pre>
231
187<p> 232<p>
188Second we set the domainname: 233Second, <e>if</e> you need a domainname, set it in <path>/etc/conf.d/net</path>.
234You only need a domain if your ISP or network administrator says so, or if you
235have a DNS server but not a DHCP server. You don't need to worry about DNS or
236domainnames if your networking is setup for DHCP.
189</p> 237</p>
190 238
191<pre caption="Setting the domainname"> 239<pre caption="Setting the domainname">
192# <i>echo homenetwork &gt; /etc/dnsdomainname</i> 240# <i>nano -w /etc/conf.d/net</i>
241
242<comment>(Set the dns_domain variable to your domain name)</comment>
243dns_domain_lo="<i>homenetwork</i>"
193</pre> 244</pre>
245
246<note>
247If you choose not to set a domainname, you can get rid of the "This is
248hostname.(none)" messages at your login screen by editing
249<path>/etc/issue</path>. Just delete the string <c>.\O</c> from that file.
250</note>
194 251
195<p> 252<p>
196If you have a NIS domain (if you don't know what that is, then you don't have 253If you have a NIS domain (if you don't know what that is, then you don't have
197one), you need to define that one too: 254one), you need to define that one too:
198</p> 255</p>
199 256
200<pre caption="Setting the NIS domainname"> 257<pre caption="Setting the NIS domainname">
201# <i>echo nis.homenetwork &gt; /etc/nisdomainname</i> 258# <i>nano -w /etc/conf.d/net</i>
202</pre>
203 259
204<p> 260<comment>(Set the nis_domain variable to your NIS domain name)</comment>
205Now add the <c>domainname</c> script to the default runlevel: 261nis_domain_lo="<i>my-nisdomain</i>"
206</p> 262</pre>
207 263
208<pre caption="Adding domainname to the default runlevel"> 264<note>
209# <i>rc-update add domainname default</i> 265For more information on configuring DNS and NIS, please read the examples
210</pre> 266provided 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.
268</note>
211 269
212</body> 270</body>
213</subsection> 271</subsection>
214<subsection> 272<subsection>
215<title>Configuring your Network</title> 273<title>Configuring your Network</title>
216<body> 274<body>
217 275
218<p> 276<p>
219Before you get that "Hey, we've had that already"-feeling, you should remember 277Before you get that "Hey, we've had that already"-feeling, you should remember
220that the networking you set up in the beginning of the gentoo installation was 278that the networking you set up in the beginning of the Gentoo installation was
221just for the installation. Right now you are going to configure networking for 279just for the installation. Right now you are going to configure networking for
222your Gentoo system permanently. 280your Gentoo system permanently.
223</p> 281</p>
224 282
283<note>
284More detailed information about networking, including advanced topics like
285bonding, bridging, 802.1Q VLANs or wireless networking is covered in the <uri
286link="?part=4">Gentoo Network Configuration</uri> section.
287</note>
288
225<p> 289<p>
226All networking information is gathered in <path>/etc/conf.d/net</path>. It uses 290All networking information is gathered in <path>/etc/conf.d/net</path>. It uses
227a straightforward yet not intuitive syntax if you don't know how to set up 291a straightforward yet not intuitive syntax if you don't know how to set up
228networking manually. But don't fear, we'll explain everything :) 292networking manually. But don't fear, we'll explain everything. A fully
229</p> 293commented example that covers many different configurations is available in
230 294<path>/etc/conf.d/net.example</path>.
231<p> 295</p>
296
297<p>
298DHCP is used by default. For DHCP to work, you will need to install a DHCP
299client. This is described later in <uri
300link="?part=1&amp;chap=9#networking-tools">Installing Necessary System
301Tools</uri>. Do not forget to install a DHCP client.
302</p>
303
304<p>
305If you need to configure your network connection either because you need
306specific DHCP options or because you do not use DHCP at all, open
232First open <path>/etc/conf.d/net</path> with your favorite editor (<c>nano</c> 307<path>/etc/conf.d/net</path> with your favorite editor (<c>nano</c> is used in
233is used in this example): 308this example):
234</p> 309</p>
235 310
236<pre caption="Opening /etc/conf.d/net for editing"> 311<pre caption="Opening /etc/conf.d/net for editing">
237# <i>nano -w /etc/conf.d/net</i> 312# <i>nano -w /etc/conf.d/net</i>
238</pre> 313</pre>
239 314
240<!-- Old baselayout - current stable -->
241
242<p>
243The first variable you'll find is <c>iface_eth0</c>. It uses the following
244syntax:
245</p> 315<p>
246 316You will see the following file:
247<pre caption="iface_eth0 syntaxis">
248iface_eth0="<i>&lt;your ip address&gt;</i> broadcast <i>&lt;your broadcast address&gt;</i> netmask <i>&lt;your netmask&gt;</i>"
249</pre>
250
251<p> 317</p>
252If you use DHCP (automatic IP retrieval), you should just set <c>iface_eth0</c> 318
253to <c>dhcp</c>. If you use rp-pppoe (e.g. for ADSL), set it to <c>up</c>. 319<pre caption="Default /etc/conf.d/net">
254If you need to set up your network manually and you're 320# This blank configuration will automatically use DHCP for any net.*
255not familiar with all the above terms, please read the section on <uri 321# scripts in /etc/init.d. To create a more complete configuration,
256link="?part=1&amp;chap=3#network_term">Understanding Network 322# please review /etc/conf.d/net.example and save your configuration
257Terminology</uri> if you haven't done so already. 323# in /etc/conf.d/net (this file :]!).
324</pre>
325
258</p> 326<p>
259 327To enter your own IP address, netmask and gateway, you need
328to set both <c>config_eth0</c> and <c>routes_eth0</c>:
260<p> 329</p>
261So let us give three examples; the first one uses DHCP, the second one a static 330
262IP (192.168.0.2) with netmask 255.255.255.0, broadcast 192.168.0.255 and 331<pre caption="Manually setting IP information for eth0">
263gateway 192.168.0.1 while the third one just activates the interface for 332config_eth0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" )
264rp-pppoe usage: 333routes_eth0=( "default via 192.168.0.1" )
334</pre>
335
265</p> 336<p>
266 337To use DHCP and add specific DHCP options, define <c>config_eth0</c> and
267<pre caption="Examples for /etc/conf.d/net"> 338<c>dhcp_eth0</c>:
268<comment>(For DHCP)</comment>
269iface_eth0="dhcp"
270<comment># Some network admins require that you use the</comment>
271<comment># hostname and domainname provided by the DHCP server.</comment>
272<comment># In that case, add the following to let dhcpcd use them.</comment>
273<comment># That will override your own hostname and domainname definitions.</comment>
274dhcpcd_eth0="-HD"
275<comment># If you intend on using NTP to keep your machine clock synchronized, use</comment>
276<comment># the -N option to prevent dhcpcd from overwriting your /etc/ntp.conf file</comment>
277dhcpcd_eth0="-N"
278
279<comment>(For static IP)</comment>
280iface_eth0="192.168.0.2 broadcast 192.168.0.255 netmask 255.255.255.0"
281gateway="eth0/192.168.0.1"
282
283<comment>(For rp-pppoe)</comment>
284iface_eth0="up"
285</pre>
286
287<p> 339</p>
288If you have several network interfaces, create extra <c>iface_eth</c> variables,
289like <c>iface_eth1</c>, <c>iface_eth2</c> etc. The <c>gateway</c> variable
290shouldn't be reproduced as you can only set one gateway per computer.
291</p>
292 340
293<!-- New baselayout - current testing
294
295<p>
296The first variable you'll find is called <c>config_eth0</c>. As you can probably
297imagine, this variable configured the eth0 network interface. If the interface
298needs to automatically obtain an IP through DHCP, you should set it like so:
299</p>
300
301<pre caption="Automatically obtaining an IP for eth0"> 341<pre caption="Automatically obtaining an IP address for eth0">
302config_eth0=( "dhcp" ) 342config_eth0=( "dhcp" )
343dhcp_eth0="nodns nontp nonis"
303</pre> 344</pre>
304 345
305<p>
306However, if you have to enter your own IP address, netmask and gateway, you need
307to set both <c>config_eth0</c> and <c>routes_eth0</c>:
308</p> 346<p>
309 347Please read <path>/etc/conf.d/net.example</path> for a list of all available
310<pre caption="Manually setting IP information for eth0"> 348options.
311config_eth0=( "192.168.0.2 netmask 255.255.255.0" )
312routes_eth0=( "default gw 192.168.0.1" )
313</pre> 349</p>
314 350
315<p> 351<p>
316If you have several network interfaces repeat the above steps for 352If you have several network interfaces repeat the above steps for
317<c>config_eth1</c>, <c>config_eth2</c>, etc. 353<c>config_eth1</c>, <c>config_eth2</c>, etc.
318</p> 354</p>
319 355
320-->
321
322<p> 356<p>
323Now save the configuration and exit to continue. 357Now save the configuration and exit to continue.
324</p> 358</p>
325 359
326</body> 360</body>
329<title>Automatically Start Networking at Boot</title> 363<title>Automatically Start Networking at Boot</title>
330<body> 364<body>
331 365
332<p> 366<p>
333To have your network interfaces activated at boot, you need to add them to the 367To have your network interfaces activated at boot, you need to add them to the
334default runlevel. If you have PCMCIA interfaces you should skip this action as 368default runlevel.
335the PCMCIA interfaces are started by the PCMCIA init script.
336</p> 369</p>
337 370
338<pre caption="Adding net.eth0 to the default runlevel"> 371<pre caption="Adding net.eth0 to the default runlevel">
339# <i>rc-update add net.eth0 default</i> 372# <i>rc-update add net.eth0 default</i>
340</pre> 373</pre>
345use <c>ln</c> to do this: 378use <c>ln</c> to do this:
346</p> 379</p>
347 380
348<pre caption="Creating extra initscripts"> 381<pre caption="Creating extra initscripts">
349# <i>cd /etc/init.d</i> 382# <i>cd /etc/init.d</i>
350# <i>ln -s net.eth0 net.eth1</i> 383# <i>ln -s net.lo net.eth1</i>
351# <i>rc-update add net.eth1 default</i> 384# <i>rc-update add net.eth1 default</i>
352</pre> 385</pre>
353 386
354</body> 387</body>
355</subsection> 388</subsection>
357<title>Writing Down Network Information</title> 390<title>Writing Down Network Information</title>
358<body> 391<body>
359 392
360<p> 393<p>
361You now need to inform Linux about your network. This is defined in 394You now need to inform Linux about your network. This is defined in
362<path>/etc/hosts</path> and helps in resolving hostnames to IP addresses 395<path>/etc/hosts</path> and helps in resolving host names to IP addresses for
363for hosts that aren't resolved by your nameserver. For instance, if your 396hosts that aren't resolved by your nameserver. You need to define your system.
364internal network consists of three PCs called <c>jenny</c> (192.168.0.5), 397You may also want to define other systems on your network if you don't want to
365<c>benny</c> (192.168.0.6) and <c>tux</c> (192.168.0.7 - this system) you would 398set up your own internal DNS system.
366open <path>/etc/hosts</path> and fill in the values:
367</p> 399</p>
368 400
369<pre caption="Opening /etc/hosts"> 401<pre caption="Opening /etc/hosts">
370# <i>nano -w /etc/hosts</i> 402# <i>nano -w /etc/hosts</i>
371</pre> 403</pre>
372 404
373<pre caption="Filling in the networking information"> 405<pre caption="Filling in the networking information">
374127.0.0.1 localhost 406<comment>(This defines the current system)</comment>
407127.0.0.1 tux.homenetwork tux localhost
408
409<comment>(Define extra systems on your network,
410they need to have a static IP to be defined this way.)</comment>
375192.168.0.5 jenny.homenetwork jenny 411192.168.0.5 jenny.homenetwork jenny
376192.168.0.6 benny.homenetwork benny 412192.168.0.6 benny.homenetwork benny
377192.168.0.7 tux.homenetwork tux
378</pre>
379
380<p>
381If your system is the only system (or the nameservers handle all name
382resolution) a single line is sufficient. For instance, if you want to call your
383system <c>tux</c>:
384</p>
385
386<pre caption="/etc/hosts for lonely or fully integrated PCs">
387127.0.0.1 localhost tux
388</pre> 413</pre>
389 414
390<p> 415<p>
391Save and exit the editor to continue. 416Save and exit the editor to continue.
392</p> 417</p>
393 418
394<p> 419<p test="func:keyval('arch')='AMD64' or func:keyval('arch')='x86' or substring(func:keyval('arch'),1,3)='PPC'">
395If you don't have PCMCIA, you can now continue with <uri 420If you don't have PCMCIA, you can now continue with <uri
396link="#doc_chap3">System Information</uri>. PCMCIA-users should read the 421link="#sysinfo">System Information</uri>. PCMCIA-users should read the
397following topic on PCMCIA. 422following topic on PCMCIA.
398</p> 423</p>
399 424
400</body> 425</body>
401</subsection> 426</subsection>
402<subsection> 427<subsection test="func:keyval('arch')='AMD64' or func:keyval('arch')='x86' or substring(func:keyval('arch'),1,3)='PPC'">
403<title>Optional: Get PCMCIA Working</title> 428<title>Optional: Get PCMCIA Working</title>
404<body> 429<body>
405 430
406<note>
407pcmcia-cs is only available for x86, amd64 and ppc platforms.
408</note>
409
410<p> 431<p>
411PCMCIA-users should first install the <c>pcmcia-cs</c> package. This also 432PCMCIA users should first install the <c>pcmciautils</c> package.
412includes users who will be working with a 2.6 kernel (even though they won't be
413using the PCMCIA drivers from this package). The <c>USE="-X"</c> is necessary
414to avoid installing xorg-x11 at this moment:
415</p> 433</p>
416 434
417<pre caption="Installing pcmcia-cs"> 435<pre caption="Installing pcmciautils">
418# <i>USE="-X" emerge pcmcia-cs</i> 436# <i>emerge pcmciautils</i>
419</pre>
420
421<p>
422When <c>pcmcia-cs</c> is installed, add <c>pcmcia</c> to the <e>default</e>
423runlevel:
424</p>
425
426<pre caption="Adding pcmcia to the default runlevel">
427# <i>rc-update add pcmcia default</i>
428</pre> 437</pre>
429 438
430</body> 439</body>
431</subsection> 440</subsection>
432</section> 441</section>
433<section> 442
443<section id="sysinfo">
434<title>System Information</title> 444<title>System Information</title>
435<subsection> 445<subsection>
436<title>Root Password</title> 446<title>Root Password</title>
437<body> 447<body>
438 448
442 452
443<pre caption="Setting the root password"> 453<pre caption="Setting the root password">
444# <i>passwd</i> 454# <i>passwd</i>
445</pre> 455</pre>
446 456
447<p>
448If you want root to be able to log on through the serial console, add
449<c>tts/0</c> to <path>/etc/securetty</path>:
450</p>
451
452<pre caption="Adding tts/0 to /etc/securetty">
453# <i>echo "tts/0" &gt;&gt; /etc/securetty</i>
454</pre>
455
456</body> 457</body>
457</subsection> 458</subsection>
458<subsection> 459<subsection>
459<title>System Information</title> 460<title>System Information</title>
460<body> 461<body>
467<pre caption="Opening /etc/rc.conf"> 468<pre caption="Opening /etc/rc.conf">
468# <i>nano -w /etc/rc.conf</i> 469# <i>nano -w /etc/rc.conf</i>
469</pre> 470</pre>
470 471
471<p> 472<p>
473When you're finished configuring <path>/etc/rc.conf</path>, save and exit.
474</p>
475
476<p>
472As you can see, this file is well commented to help you set up the necessary 477As you can see, this file is well commented to help you set up the necessary
473configuration variables. Take special care with the <c>KEYMAP</c> setting: if 478configuration variables. You can configure your system to use unicode and
474you select the wrong <c>KEYMAP</c> you will get weird results when typing on 479define your default editor and your display manager (like gdm or kdm).
475your keyboard. 480</p>
481
476</p> 482<p>
483Gentoo uses <path>/etc/conf.d/keymaps</path> to handle keyboard configuration.
484Edit it to configure your keyboard.
485</p>
477 486
478<note> 487<pre caption="Opening /etc/conf.d/keymaps">
479Users of USB-based <b>SPARC</b> systems and <b>SPARC</b> clones might need to 488# <i>nano -w /etc/conf.d/keymaps</i>
480select an i386 keymap (such as "us") instead of "sunkeymap". 489</pre>
490
491<p>
492Take 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.
494</p>
495
496<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
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>.
481</note> 500</note>
482 501
483<p> 502<p>
484<b>PPC</b> uses x86 keymaps on most systems. Users who want to be able to use 503When you're finished configuring <path>/etc/conf.d/keymaps</path>, save and
485ADB keymaps on boot have to enable ADB keycode sendings in their kernel and have 504exit.
486to set a mac/ppc keymap in <path>rc.conf</path>.
487</p>
488
489<p> 505</p>
506
507<p>
508Gentoo uses <path>/etc/conf.d/clock</path> to set clock options. Edit it
509according to your needs.
510</p>
511
512<pre caption="Opening /etc/conf.d/clock">
513# <i>nano -w /etc/conf.d/clock</i>
514</pre>
515
516<p>
517If your hardware clock is not using UTC, you need to add <c>CLOCK="local"</c>
518to the file. Otherwise you will notice some clock skew.
519</p>
520
521<p>
522You should define the timezone that you previously copied to
523<path>/etc/localtime</path> so that further upgrades of the
524<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
526<c>TIMEZONE="GMT"</c>
527</p>
528
529<p>
490When you're finished configuring <path>/etc/rc.conf</path>, save and exit. 530When you're finished configuring <path>/etc/conf.d/clock</path>, save and
491</p> 531exit.
492
493<p> 532</p>
494If you are not installing Gentoo on an IBM POWER5 or JS20 system, continue with 533
534<p test="not(func:keyval('arch')='PPC64')">
495<uri link="?part=1&amp;chap=9">Installing Necessary System Tools</uri>. 535Please continue with <uri link="?part=1&amp;chap=9">Installing Necessary System
536Tools</uri>.
496</p> 537</p>
497 538
498</body> 539</body>
499</subsection>
500<subsection> 540</subsection>
541<subsection test="func:keyval('arch')='PPC64'">
501<title>Configuring the Console</title> 542<title>Configuring the Console</title>
502<body> 543<body>
503 544
504<note>
505The following section applies to the IBM POWER5 and JS20 hardware platforms.
506</note>
507
508<p>
509If you are running gentoo in an LPAR or on a JS20 blade, you must uncomment
510the hvc line in /etc/inittab for the virtual console to spawn a login prompt.
511</p> 545<p>
546If you are using a virtual console, you must uncomment the appropriate line in
547<path>/etc/inittab</path> for the virtual console to spawn a login prompt.
548</p>
512 549
513<pre caption="Enabling hvc support in /etc/inittab"> 550<pre caption="Enabling hvc or hvsi support in /etc/inittab">
514hvc:12345:respawn:/sbin/agetty -nl /bin/bashlogin 9600 hvc0 vt220 551hvc0:12345:respawn:/sbin/agetty -L 9600 hvc0
552hvsi:12345:respawn:/sbin/agetty -L 19200 hvsi0
553</pre>
554
555<p>
556You should also take this time to verify that the appropriate console is
557listed in <path>/etc/securetty</path>.
515</pre> 558</p>
516 559
517<p> 560<p>
518You may now continue with <uri link="?part=1&amp;chap=9">Installing Necessary 561You may now continue with <uri link="?part=1&amp;chap=9">Installing Necessary
519System Tools</uri>. 562System Tools</uri>.
520</p> 563</p>

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