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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 1.61 2005/05/23 18:13:34 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>
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>2.3</version> 17<version>10</version>
12<date>2005-05-23</date> 18<date>2011-08-02</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>
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, with <c>ext2</c> as
89It needs to be checked during boot, so we would write down: 97filesystem. It needs to be checked during boot, so we would write down:
90</p> 98</p>
91 99
92<pre caption="An example /boot line for /etc/fstab"> 100<pre caption="An example /boot line for /etc/fstab">
93/dev/hda1 /boot ext2 defaults 1 2 101<keyval id="/boot"/> /boot ext2 defaults 1 2
94</pre> 102</pre>
95 103
96<p> 104<p>
97Some users don't want their <path>/boot</path> partition to be mounted 105Some users don't want their <path>/boot</path> partition to be mounted
98automatically to improve their system's security. Those people should 106automatically to improve their system's security. Those people should
99substitute <c>defaults</c> with <c>noauto</c>. This does mean that you need to 107substitute <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. 108manually mount this partition every time you want to use it.
101</p> 109</p>
102 110
103<p> 111</body>
104Now, to improve performance, most users would want to add the <c>noatime</c> 112<body>
105option as mountoption, which results in a faster system since access times 113
106aren't registered (you don't need those generally anyway):
107</p> 114<p>
108 115Add the rules that match your partitioning scheme and append rules for
109<pre caption="An improved /boot line for /etc/fstab"> 116your CD-ROM drive(s), and of course, if you have other partitions or drives,
110/dev/hda1 /boot ext2 defaults,noatime 1 2 117for those too.
111</pre>
112
113<p> 118</p>
114If we continue with this, we would end up with the following three lines (for 119
115<path>/boot</path>, <path>/</path> and the swap partition):
116</p> 120<p>
121Now use the <e>example</e> below to create your <path>/etc/fstab</path>:
122</p>
117 123
118<pre caption="Three /etc/fstab lines"> 124<pre caption="A full /etc/fstab example" test="func:keyval('arch')='HPPA'">
119/dev/hda1 /boot ext2 defaults,noatime 1 2 125<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
120/dev/hda2 none swap sw 0 0 126/dev/sda3 none swap sw 0 0
121/dev/hda3 / ext3 noatime 0 1 127/dev/sda4 / ext3 noatime 0 1
122</pre>
123 128
124<p> 129/dev/cdrom /mnt/cdrom auto noauto,user 0 0
125To finish up, you should add a rule for <path>/proc</path>, <c>tmpfs</c> 130
126(required) and for your CD-ROM drive (and of course, if you have other 131proc /proc proc defaults 0 0
127partitions or drives, for those too): 132shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
128</p> 133</pre>
129 134
130<pre caption="A full /etc/fstab example"> 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'">
131/dev/hda1 /boot ext2 defaults,noatime 1 2 136<keyval id="/boot"/> /boot ext2 defaults,noatime 1 2
132/dev/hda2 none swap sw 0 0 137/dev/sda2 none swap sw 0 0
133/dev/hda3 / ext3 noatime 0 1 138/dev/sda3 / ext3 noatime 0 1
134 139
140/dev/cdrom /mnt/cdrom auto noauto,user 0 0
141
135none /proc proc defaults 0 0 142proc /proc proc defaults 0 0
136none /dev/shm tmpfs nodev,nosuid,noexec 0 0 143shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
144</pre>
137 145
146<pre caption="A full /etc/fstab example" test="func:keyval('arch')='SPARC'">
147/dev/sda1 / ext3 noatime 0 1
148/dev/sda2 none swap sw 0 0
149/dev/sda4 /usr ext3 noatime 0 2
150/dev/sda5 /var ext3 noatime 0 2
151/dev/sda6 /home ext3 noatime 0 2
152
153<comment># You must add the rules for openprom</comment>
154openprom /proc/openprom openpromfs defaults 0 0
155
138/dev/cdroms/cdrom0 /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
160</pre>
161
162<pre caption="A full /etc/fstab example" test="func:keyval('arch')='PPC' or
163func:keyval('arch')='PPC64'">
164/dev/sda4 / ext3 noatime 0 1
165/dev/sda3 none swap sw 0 0
166
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
139</pre> 171</pre>
140 172
141<p> 173<p>
142<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
143removable 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
144<c>user</c> makes it possible for non-root users to mount the CD. 176<c>user</c> makes it possible for non-root users to mount the CD.
145</p> 177</p>
146 178
147<p> 179<p>
148Now use the above example to create your <path>/etc/fstab</path>. If you are a 180To 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 181mount option, which results in a faster system since access times
150<path>/etc/fstab</path> 182aren'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> 183</p>
157 184
158<p> 185<p>
159Double-check your <path>/etc/fstab</path>, save and quit to continue. 186Double-check your <path>/etc/fstab</path>, save and quit to continue.
160</p> 187</p>
161 188
163</subsection> 190</subsection>
164</section> 191</section>
165<section> 192<section>
166<title>Networking Information</title> 193<title>Networking Information</title>
167<subsection> 194<subsection>
168<title>Hostname, Domainname etc.</title> 195<title>Host name, Domainname, etc</title>
169<body> 196<body>
170 197
171<p> 198<p>
172One of the choices the user has to make is name his/her PC. This seems to be 199One 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 200quite 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 201appropriate 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 202choose can be changed afterwards. For all we care, you can just call your system
176<c>tux</c> and domain <c>homenetwork</c>. 203<c>tux</c> and domain <c>homenetwork</c>.
177</p> 204</p>
178 205
179<p>
180We use these values in the next examples. First we set the hostname:
181</p>
182
183<pre caption="Setting the hostname"> 206<pre caption="Setting the host name">
184# <i>echo tux &gt; /etc/hostname</i> 207# <i>nano -w /etc/conf.d/hostname</i>
185</pre>
186 208
209<comment>(Set the HOSTNAME variable to your host name)</comment>
210HOSTNAME="<i>tux</i>"
211</pre>
212
187<p> 213<p>
188Second we set the domainname: 214Second, <e>if</e> you need a domainname, set it in <path>/etc/conf.d/net</path>.
215You only need a domain if your ISP or network administrator says so, or if you
216have a DNS server but not a DHCP server. You don't need to worry about DNS or
217domainnames if your networking is setup for DHCP.
189</p> 218</p>
190 219
191<pre caption="Setting the domainname"> 220<pre caption="Setting the domainname">
192# <i>echo homenetwork &gt; /etc/dnsdomainname</i> 221# <i>nano -w /etc/conf.d/net</i>
222
223<comment>(Set the dns_domain variable to your domain name)</comment>
224dns_domain_lo="<i>homenetwork</i>"
193</pre> 225</pre>
226
227<note>
228If you choose not to set a domainname, you can get rid of the "This is
229hostname.(none)" messages at your login screen by editing
230<path>/etc/issue</path>. Just delete the string <c>.\O</c> from that file.
231</note>
194 232
195<p> 233<p>
196If you have a NIS domain (if you don't know what that is, then you don't have 234If 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: 235one), you need to define that one too:
198</p> 236</p>
199 237
200<pre caption="Setting the NIS domainname"> 238<pre caption="Setting the NIS domainname">
201# <i>echo nis.homenetwork &gt; /etc/nisdomainname</i> 239# <i>nano -w /etc/conf.d/net</i>
202</pre>
203 240
204<p> 241<comment>(Set the nis_domain variable to your NIS domain name)</comment>
205Now add the <c>domainname</c> script to the default runlevel: 242nis_domain_lo="<i>my-nisdomain</i>"
206</p> 243</pre>
207 244
208<pre caption="Adding domainname to the default runlevel"> 245<note>
209# <i>rc-update add domainname default</i> 246For more information on configuring DNS and NIS, please read the examples
210</pre> 247provided in <path>/etc/conf.d/net.example</path>. Also, you may want to emerge
248<c>openresolv</c> to help manage your DNS/NIS setup.
249</note>
211 250
212</body> 251</body>
213</subsection> 252</subsection>
214<subsection> 253<subsection>
215<title>Configuring your Network</title> 254<title>Configuring your Network</title>
216<body> 255<body>
217 256
218<p> 257<p>
219Before you get that "Hey, we've had that already"-feeling, you should remember 258Before 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 259that 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 260just for the installation. Right now you are going to configure networking for
222your Gentoo system permanently. 261your Gentoo system permanently.
223</p> 262</p>
224 263
264<note>
265More detailed information about networking, including advanced topics like
266bonding, bridging, 802.1Q VLANs or wireless networking is covered in the <uri
267link="?part=4">Gentoo Network Configuration</uri> section.
268</note>
269
225<p> 270<p>
226All networking information is gathered in <path>/etc/conf.d/net</path>. It uses 271All 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 272a straightforward yet not intuitive syntax if you don't know how to set up
228networking manually. But don't fear, we'll explain everything :) 273networking manually. But don't fear, we'll explain everything. A fully
229</p> 274commented example that covers many different configurations is available in
230 275<path>/etc/conf.d/net.example</path>.
231<p> 276</p>
277
278<p>
279DHCP is used by default. For DHCP to work, you will need to install a DHCP
280client. This is described later in <uri
281link="?part=1&amp;chap=9#networking-tools">Installing Necessary System
282Tools</uri>. Do not forget to install a DHCP client.
283</p>
284
285<p>
286If you need to configure your network connection either because you need
287specific 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> 288<path>/etc/conf.d/net</path> with your favorite editor (<c>nano</c> is used in
233is used in this example): 289this example):
234</p> 290</p>
235 291
236<pre caption="Opening /etc/conf.d/net for editing"> 292<pre caption="Opening /etc/conf.d/net for editing">
237# <i>nano -w /etc/conf.d/net</i> 293# <i>nano -w /etc/conf.d/net</i>
238</pre> 294</pre>
239 295
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> 296<p>
246 297You 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> 298</p>
252If you use DHCP (automatic IP retrieval), you should just set <c>iface_eth0</c> 299
253to <c>dhcp</c>. If you use rp-pppoe (e.g. for ADSL), set it to <c>up</c>. 300<pre caption="Default /etc/conf.d/net">
254If you need to set up your network manually and you're 301# This blank configuration will automatically use DHCP for any net.*
255not familiar with all the above terms, please read the section on <uri 302# scripts in /etc/init.d. To create a more complete configuration,
256link="?part=1&amp;chap=3#network_term">Understanding Network 303# please review /etc/conf.d/net.example and save your configuration
257Terminology</uri> if you haven't done so already. 304# in /etc/conf.d/net (this file :]!).
305</pre>
306
258</p> 307<p>
259 308To enter your own IP address, netmask and gateway, you need
309to set both <c>config_eth0</c> and <c>routes_eth0</c>:
260<p> 310</p>
261So let us give three examples; the first one uses DHCP, the second one a static 311
262IP (192.168.0.2) with netmask 255.255.255.0, broadcast 192.168.0.255 and 312<pre caption="Manually setting IP information for eth0">
263gateway 192.168.0.1 while the third one just activates the interface for 313config_eth0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" )
264rp-pppoe usage: 314routes_eth0=( "default via 192.168.0.1" )
315</pre>
316
265</p> 317<p>
266 318To use DHCP, define <c>config_eth0</c>:
267<pre caption="Examples for /etc/conf.d/net">
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> 319</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>
292 320
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"> 321<pre caption="Automatically obtaining an IP address for eth0">
302config_eth0=( "dhcp" ) 322config_eth0=( "dhcp" )
303</pre> 323</pre>
304 324
305<p> 325<p>
306However, if you have to enter your own IP address, netmask and gateway, you need 326Please read <path>/etc/conf.d/net.example</path> for a list of all available
307to set both <c>config_eth0</c> and <c>routes_eth0</c>: 327options. Be sure to also read your DHCP client manpage if you need to set
308</p> 328specific DHCP options.
309
310<pre caption="Manually setting IP information for eth0">
311config_eth0=( "192.168.0.2 netmask 255.255.255.0" )
312routes_eth0=( "default gw 192.168.0.1" )
313</pre> 329</p>
314 330
315<p> 331<p>
316If you have several network interfaces repeat the above steps for 332If you have several network interfaces repeat the above steps for
317<c>config_eth1</c>, <c>config_eth2</c>, etc. 333<c>config_eth1</c>, <c>config_eth2</c>, etc.
318</p> 334</p>
319 335
320-->
321
322<p> 336<p>
323Now save the configuration and exit to continue. 337Now save the configuration and exit to continue.
324</p> 338</p>
325 339
326</body> 340</body>
329<title>Automatically Start Networking at Boot</title> 343<title>Automatically Start Networking at Boot</title>
330<body> 344<body>
331 345
332<p> 346<p>
333To 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
334default runlevel. If you have PCMCIA interfaces you should skip this action as 348default runlevel.
335the PCMCIA interfaces are started by the PCMCIA init script.
336</p> 349</p>
337 350
338<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>
339# <i>rc-update add net.eth0 default</i> 354# <i>rc-update add net.eth0 default</i>
340</pre> 355</pre>
341 356
342<p> 357<p>
343If you have several network interfaces, you need to create the appropriate 358If you have several network interfaces, you need to create the appropriate
344<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
345use <c>ln</c> to do this: 360<path>net.eth0</path>.
346</p>
347
348<pre caption="Creating extra initscripts">
349# <i>cd /etc/init.d</i>
350# <i>ln -s net.eth0 net.eth1</i>
351# <i>rc-update add net.eth1 default</i>
352</pre> 361</p>
353 362
354</body> 363</body>
355</subsection> 364</subsection>
356<subsection> 365<subsection>
357<title>Writing Down Network Information</title> 366<title>Writing Down Network Information</title>
358<body> 367<body>
359 368
360<p> 369<p>
361You now need to inform Linux about your network. This is defined in 370You 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 371<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 372hosts 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), 373You 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 374set up your own internal DNS system.
366open <path>/etc/hosts</path> and fill in the values:
367</p> 375</p>
368 376
369<pre caption="Opening /etc/hosts"> 377<pre caption="Opening /etc/hosts">
370# <i>nano -w /etc/hosts</i> 378# <i>nano -w /etc/hosts</i>
371</pre> 379</pre>
372 380
373<pre caption="Filling in the networking information"> 381<pre caption="Filling in the networking information">
374127.0.0.1 localhost 382<comment>(This defines the current system)</comment>
383127.0.0.1 tux.homenetwork tux localhost
384
385<comment>(Define extra systems on your network,
386they need to have a static IP to be defined this way.)</comment>
375192.168.0.5 jenny.homenetwork jenny 387192.168.0.5 jenny.homenetwork jenny
376192.168.0.6 benny.homenetwork benny 388192.168.0.6 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> 389</pre>
389 390
390<p> 391<p>
391Save and exit the editor to continue. 392Save and exit the editor to continue.
392</p> 393</p>
393 394
394<p> 395<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 396If you don't have PCMCIA, you can now continue with <uri
396link="#doc_chap3">System Information</uri>. PCMCIA-users should read the 397link="#sysinfo">System Information</uri>. PCMCIA-users should read the
397following topic on PCMCIA. 398following topic on PCMCIA.
398</p> 399</p>
399 400
400</body> 401</body>
401</subsection> 402</subsection>
402<subsection> 403<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> 404<title>Optional: Get PCMCIA Working</title>
404<body> 405<body>
405 406
406<note>
407pcmcia-cs is only available for x86, amd64 and ppc platforms.
408</note>
409
410<p> 407<p>
411PCMCIA-users should first install the <c>pcmcia-cs</c> package. This also 408PCMCIA 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> 409</p>
416 410
417<pre caption="Installing pcmcia-cs"> 411<pre caption="Installing pcmciautils">
418# <i>USE="-X" emerge pcmcia-cs</i> 412# <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> 413</pre>
429 414
430</body> 415</body>
431</subsection> 416</subsection>
432</section> 417</section>
433<section> 418
419<section id="sysinfo">
434<title>System Information</title> 420<title>System Information</title>
435<subsection> 421<subsection>
436<title>Root Password</title> 422<title>Root Password</title>
437<body> 423<body>
438 424
442 428
443<pre caption="Setting the root password"> 429<pre caption="Setting the root password">
444# <i>passwd</i> 430# <i>passwd</i>
445</pre> 431</pre>
446 432
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> 433</body>
457</subsection> 434</subsection>
458<subsection> 435<subsection>
459<title>System Information</title> 436<title>System Information</title>
460<body> 437<body>
467<pre caption="Opening /etc/rc.conf"> 444<pre caption="Opening /etc/rc.conf">
468# <i>nano -w /etc/rc.conf</i> 445# <i>nano -w /etc/rc.conf</i>
469</pre> 446</pre>
470 447
471<p> 448<p>
449When you're finished configuring <path>/etc/rc.conf</path>, save and exit.
450</p>
451
452<p>
472As you can see, this file is well commented to help you set up the necessary 453As 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 454configuration 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 455define your default editor and your display manager (like gdm or kdm).
475your keyboard. 456</p>
457
476</p> 458<p>
459Gentoo uses <path>/etc/conf.d/keymaps</path> to handle keyboard configuration.
460Edit it to configure your keyboard.
461</p>
477 462
478<note> 463<pre caption="Opening /etc/conf.d/keymaps">
479Users of USB-based <b>SPARC</b> systems and <b>SPARC</b> clones might need to 464# <i>nano -w /etc/conf.d/keymaps</i>
480select an i386 keymap (such as "us") instead of "sunkeymap". 465</pre>
466
467<p>
468Take special care with the <c>KEYMAP</c> variable. If you select the wrong
469<c>KEYMAP</c>, you will get weird results when typing on your keyboard.
470</p>
471
472<note test="substring(func:keyval('arch'),1,3)='PPC'">
473PPC uses x86 keymaps on most systems.
481</note> 474</note>
482 475
483<p> 476<p>
484<b>PPC</b> uses x86 keymaps on most systems. Users who want to be able to use 477When 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 478exit.
486to set a mac/ppc keymap in <path>rc.conf</path>.
487</p>
488
489<p> 479</p>
480
481<p>
482Gentoo uses <path>/etc/conf.d/clock</path> to set clock options. Edit it
483according to your needs.
484</p>
485
486<pre caption="Opening /etc/conf.d/clock">
487# <i>nano -w /etc/conf.d/clock</i>
488</pre>
489
490<p>
490If your hardware clock is not using UTC, you need to add <c>CLOCK="local"</c> to 491If your hardware clock is not using UTC, you need to add <c>CLOCK="local"</c>
491the file. Otherwise you will notice some clock skew. 492to the file. Otherwise you will notice some clock skew.
492</p>
493
494<p> 493</p>
494
495<p>
496You should define the timezone that you previously copied to
497<path>/etc/localtime</path> so that further upgrades of the
498<c>sys-libs/timezone-data</c> package can update <path>/etc/localtime</path>
499automatically. For instance, if you used the GMT timezone, you would add
500<c>TIMEZONE="GMT"</c>
501</p>
502
503<p>
495When you're finished configuring <path>/etc/rc.conf</path>, save and exit. 504When you're finished configuring <path>/etc/conf.d/clock</path>, save and
496</p> 505exit.
497
498<p> 506</p>
499If you are not installing Gentoo on an IBM POWER5 or JS20 system, continue with 507
508<p test="not(func:keyval('arch')='PPC64')">
500<uri link="?part=1&amp;chap=9">Installing Necessary System Tools</uri>. 509Please continue with <uri link="?part=1&amp;chap=9">Installing Necessary System
510Tools</uri>.
501</p> 511</p>
502 512
503</body> 513</body>
504</subsection>
505<subsection> 514</subsection>
515<subsection test="func:keyval('arch')='PPC64'">
506<title>Configuring the Console</title> 516<title>Configuring the Console</title>
507<body> 517<body>
508 518
509<note>
510The following section applies to the IBM POWER5 and JS20 hardware platforms.
511</note>
512
513<p>
514If you are running Gentoo in an LPAR or on a JS20 blade, you must uncomment
515the hvc line in /etc/inittab for the virtual console to spawn a login prompt.
516</p> 519<p>
520If you are using a virtual console, you must uncomment the appropriate line in
521<path>/etc/inittab</path> for the virtual console to spawn a login prompt.
522</p>
517 523
518<pre caption="Enabling hvc support in /etc/inittab"> 524<pre caption="Enabling hvc or hvsi support in /etc/inittab">
519hvc:12345:respawn:/sbin/agetty -nl /bin/bashlogin 9600 hvc0 vt220 525hvc0:12345:respawn:/sbin/agetty -L 9600 hvc0
526hvsi:12345:respawn:/sbin/agetty -L 19200 hvsi0
527</pre>
528
529<p>
530You should also take this time to verify that the appropriate console is
531listed in <path>/etc/securetty</path>.
520</pre> 532</p>
521 533
522<p> 534<p>
523You may now continue with <uri link="?part=1&amp;chap=9">Installing Necessary 535You may now continue with <uri link="?part=1&amp;chap=9">Installing Necessary
524System Tools</uri>. 536System Tools</uri>.
525</p> 537</p>

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