/[gentoo]/xml/htdocs/doc/en/handbook/hb-install-config.xml
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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/1.0 -->
6 6
7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-config.xml,v 1.40 2004/08/02 19:29:14 swift Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-config.xml,v 1.41 2004/08/04 08:46:30 swift Exp $ -->
8 8
9<sections> 9<sections>
10<section> 10<section>
11<title>Filesystem Information</title> 11<title>Filesystem Information</title>
12<subsection> 12<subsection>
13<title>What is fstab?</title> 13<title>What is fstab?</title>
14<body> 14<body>
15 15
16<p> 16<p>
17Under Linux, all partitions used by the system must be listed in 17Under Linux, all partitions used by the system must be listed in
18<path>/etc/fstab</path>. This file contains the mountpoints of those partitions 18<path>/etc/fstab</path>. This file contains the mountpoints of those partitions
19(where they are seen in the file system structure), how they should be mounted 19(where they are seen in the file system structure), how they should be mounted
20(special options) and when (automatically or not, can users mount those or not, 20(special options) and when (automatically or not, can users mount those or not,
21etc.). 21etc.).
22</p> 22</p>
78<path>/boot</path> partition (such as <b>PPC</b>), don't copy it verbatim. 78<path>/boot</path> partition (such as <b>PPC</b>), don't copy it verbatim.
79</p> 79</p>
80 80
81<p> 81<p>
82In our default x86 partitioning example <path>/boot</path> is the 82In our default x86 partitioning example <path>/boot</path> is the
83<path>/dev/hda1</path> partition, with <c>ext2</c> as filesystem. 83<path>/dev/hda1</path> partition, with <c>ext2</c> as filesystem.
84It needs to be checked during boot, so we would write down: 84It needs to be checked during boot, so we would write down:
85</p> 85</p>
86 86
87<pre caption="An example /boot line for /etc/fstab"> 87<pre caption="An example /boot line for /etc/fstab">
88/dev/hda1 /boot ext2 defaults 1 2 88/dev/hda1 /boot ext2 defaults 1 2
89</pre> 89</pre>
90 90
91<p> 91<p>
92Some users don't want their <path>/boot</path> partition to be mounted 92Some users don't want their <path>/boot</path> partition to be mounted
93automatically to improve their system's security. Those people should 93automatically. Those people should substitute <c>defaults</c> with
94substitute <c>defaults</c> with <c>noauto</c>. This does mean that you need to 94<c>noauto</c>. This does mean that you need to manually mount this partition
95manually mount this partition every time you want to use it. 95every time you want to use it.
96</p> 96</p>
97 97
98<p> 98<p>
99Now, to improve performance, most users would want to add the <c>noatime</c> 99Now, to improve performance, most users would want to add the <c>noatime</c>
100option as mountoption, which results in a faster system since access times 100option as mountoption, which results in a faster system since access times
101aren't registered (you don't need those generally anyway): 101aren't registered (you don't need those generally anyway):
102</p> 102</p>
103 103
104<pre caption="An improved /boot line for /etc/fstab"> 104<pre caption="An improved /boot line for /etc/fstab">
105/dev/hda1 /boot ext2 defaults,noatime 1 2 105/dev/hda1 /boot ext2 noauto,noatime 1 2
106</pre> 106</pre>
107 107
108<p> 108<p>
109If we continue with this, we would end up with the following three lines (for 109If we continue with this, we would end up with the following three lines (for
110<path>/boot</path>, <path>/</path> and the swap partition): 110<path>/boot</path>, <path>/</path> and the swap partition):
111</p> 111</p>
112 112
113<pre caption="Three /etc/fstab lines"> 113<pre caption="Three /etc/fstab lines">
114/dev/hda1 /boot ext2 defaults,noatime 1 2 114/dev/hda1 /boot ext2 noauto,noatime 1 2
115/dev/hda2 none swap sw 0 0 115/dev/hda2 none swap sw 0 0
116/dev/hda3 / ext3 noatime 0 1 116/dev/hda3 / ext3 noatime 0 1
117</pre> 117</pre>
118 118
119<p> 119<p>
120To finish up, you should add a rule for <path>/proc</path>, <c>tmpfs</c> 120To finish up, you should add a rule for <path>/proc</path>, <c>tmpfs</c>
121(required) and for your CD-ROM drive (and of course, if you have other 121(required) and for your CD-ROM drive (and of course, if you have other
122partitions or drives, for those too): 122partitions or drives, for those too):
123</p> 123</p>
124 124
125<pre caption="A full /etc/fstab example"> 125<pre caption="A full /etc/fstab example">
126/dev/hda1 /boot ext2 defaults,noatime 1 2 126/dev/hda1 /boot ext2 noauto,noatime 1 2
127/dev/hda2 none swap sw 0 0 127/dev/hda2 none swap sw 0 0
128/dev/hda3 / ext3 noatime 0 1 128/dev/hda3 / ext3 noatime 0 1
129 129
130none /proc proc defaults 0 0 130none /proc proc defaults 0 0
131none /dev/shm tmpfs defaults 0 0 131none /dev/shm tmpfs defaults 0 0
132 132
133/dev/cdroms/cdrom0 /mnt/cdrom auto noauto,user 0 0 133/dev/cdroms/cdrom0 /mnt/cdrom auto noauto,user 0 0
134</pre> 134</pre>
135 135
136<p> 136<p>
137<c>auto</c> makes <c>mount</c> guess for the filesystem (recommended for 137<c>auto</c> makes <c>mount</c> guess for the filesystem (recommended for
138removable media as they can be created with one of many filesystems) and 138removable media as they can be created with one of many filesystems) and
139<c>user</c> makes it possible for non-root users to mount the CD. 139<c>user</c> makes it possible for non-root users to mount the CD.
140</p> 140</p>
141 141
390 390
391<p> 391<p>
392When <c>pcmcia-cs</c> is installed, add <c>pcmcia</c> to the <e>default</e> 392When <c>pcmcia-cs</c> is installed, add <c>pcmcia</c> to the <e>default</e>
393runlevel: 393runlevel:
394</p> 394</p>
395 395
396<pre caption="Adding pcmcia to the default runlevel"> 396<pre caption="Adding pcmcia to the default runlevel">
397# <i>rc-update add pcmcia default</i> 397# <i>rc-update add pcmcia default</i>
398</pre> 398</pre>
399 399
400</body> 400</body>
401</subsection> 401</subsection>
402</section> 402</section>
403<section> 403<section>
404<title>System Information</title> 404<title>System Information</title>
405<subsection>
406<title>Root Password</title>
407<body>
408
409<p>
410First we set the root password by typing:
411</p>
412
413<pre caption="Setting the root password">
414# <i>passwd</i>
415</pre>
416
417<p>
418If you want root to be able to log on through the serial console, add
419<c>tts/0</c> to <path>/etc/securetty</path>:
420</p>
421
422<pre caption="Adding tts/0 to /etc/securetty">
423# <i>echo "tts/0" &gt;&gt; /etc/securetty</i>
424</pre>
425
426</body>
427</subsection>
428<subsection>
429<title>System Information</title>
405<body> 430<body>
406 431
407<p> 432<p>
408Gentoo uses <path>/etc/rc.conf</path> for general, system-wide configuration. 433Gentoo uses <path>/etc/rc.conf</path> for general, system-wide configuration.
409Open up <path>/etc/rc.conf</path> and enjoy all the comments in that file :) 434Open up <path>/etc/rc.conf</path> and enjoy all the comments in that file :)
410</p> 435</p>
411 436
412<pre caption="Opening /etc/rc.conf"> 437<pre caption="Opening /etc/rc.conf">
413# <i>nano -w /etc/rc.conf</i> 438# <i>nano -w /etc/rc.conf</i>
414</pre> 439</pre>
415 440
416<p> 441<p>
417As you can see, this file is well commented to help you set up the necessary 442As you can see, this file is well commented to help you set up the necessary
418configuration variables. Take special care with the <c>KEYMAP</c> setting: if 443configuration variables. Take special care with the <c>KEYMAP</c> setting: if
419you select the wrong <c>KEYMAP</c> you will get weird results when typing on 444you select the wrong <c>KEYMAP</c> you will get weird results when typing on
421</p> 446</p>
422 447
423<note> 448<note>
424Users of USB-based <b>SPARC</b> systems and <b>SPARC</b> clones might need to 449Users of USB-based <b>SPARC</b> systems and <b>SPARC</b> clones might need to
425select an i386 keymap (such as "us") instead of "sunkeymap". 450select an i386 keymap (such as "us") instead of "sunkeymap".
426</note> 451</note>
427 452
428<p> 453<p>
429<b>PPC</b> uses x86 keymaps on most systems. Users who want to be able to use 454<b>PPC</b> uses x86 keymaps on most systems. Users who want to be able to use
430ADB keymaps on boot have to enable ADB keycode sendings in their kernel and have 455ADB keymaps on boot have to enable ADB keycode sendings in their kernel and have
431to set a mac/ppc keymap in <path>rc.conf</path>. 456to set a mac/ppc keymap in <path>rc.conf</path>.
432</p> 457</p>
433 458
434<p> 459<p>
435When you're finished configuring <path>/etc/rc.conf</path>, save and exit, then 460When you're finished configuring <path>/etc/rc.conf</path>, save and exit, then
436continue with <uri link="?part=1&amp;chap=9">Configuring the Bootloader</uri>. 461continue with <uri link="?part=1&amp;chap=9">Installing Necessary System
462Tools</uri>.
437</p> 463</p>
438 464
439</body> 465</body>
466</subsection>
440</section> 467</section>
441</sections> 468</sections>

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