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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-alpha-medium.xml,v 1.1 2004/04/02 08:14:45 swift Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-alpha-medium.xml,v 1.54 2011/02/27 07:05:54 nightmorph Exp $ -->
8 8
9<sections> 9<sections>
10
11<version>12</version>
12<date>2011-02-26</date>
13
10<section> 14<section>
11<title>Hardware Requirements</title> 15<title>Hardware Requirements</title>
12<subsection> 16<subsection>
13<title>Introduction</title> 17<title>Introduction</title>
14<body> 18<body>
15 19
16<p> 20<p>
17Before we start, we first list what hardware requirements you need to 21Before we start, we first list what hardware requirements you need to
18successfully install Gentoo on your box. This of course depends on your 22successfully install Gentoo on your box.
19architecture.
20</p> 23</p>
21 24
22</body> 25</body>
23</subsection>
24<subsection> 26</subsection>
25<title>The Alpha Architecture</title> 27<subsection>
28<title>Hardware Requirements</title>
29<body>
30
31<table>
32<tr>
33 <th>CPU</th>
34 <ti>
35 Please check with the <uri
36 link="http://www.alphalinux.org/faq/FAQ-5.html">Alpha/Linux FAQ</uri>
37 </ti>
38</tr>
39<tr>
40 <th>Memory</th>
41 <ti>64 MB</ti>
42</tr>
43<tr>
44 <th>Diskspace</th>
45 <ti>1.5 GB (excluding swap space)</ti>
46</tr>
47<tr>
48 <th>Swap space</th>
49 <ti>At least 256 MB</ti>
50</tr>
51</table>
52
26<body> 53</body>
54</subsection>
55</section>
27 56
57<section>
58<title>The Gentoo Installation CD</title>
59<subsection>
60<title>Introduction</title>
61<body>
62
63<p>
64The <e>Gentoo Installation CDs</e> are bootable CDs which contain a
65self-sustained Gentoo environment. They allow you to boot Linux from the CD.
66During the boot process your hardware is detected and the appropriate drivers
67are loaded. They are maintained by Gentoo developers.
28<p> 68</p>
29Check the following requirements before you 69
30continue with the Gentoo installation: 70<p>
71All Installation CDs allow you to boot, set up networking, initialize your
72partitions and start installing Gentoo from the Internet.
73</p>
74
75<!--
76<impo>
77If you wish to install Gentoo without a working Internet connection, please use
78the installation instructions described in the <uri
79link="2008.0/index.xml">Gentoo 2008.0 Handbooks</uri>.
80</impo>
81
82<p>
83The two Installation CDs we currently provide are:
31</p> 84</p>
32 85
33<ul> 86<ul>
34<li> 87 <li>
35 You need at least 1 Gb of free disk space 88 The Gentoo Minimal Installation CD, a small, no-nonsense, bootable CD which
89 sole purpose is to boot the system, prepare the networking and continue
90 with the Gentoo installation.
36</li> 91 </li>
37<li> 92 <li>
38 For the <e>Alpha architecture</e>, you should check with the <uri 93 The Gentoo Universal Installation CD, a bootable CD with the same abilities
39 link="http://www.alphalinux.org/faq/FAQ-5.html">Alpha/Linux FAQ</uri> 94 as the Minimal Installation CD. Additionally, it contains several stage3
95 tarballs (optimized for the individual subarchitectures).
40</li> 96 </li>
41</ul> 97</ul>
42 98
99<p>
100To help you decide which Installation CD you need, we have written down the
101major advantages and disadvantages of each Installation CD.
102</p>
103-->
104
43</body> 105</body>
44</subsection>
45</section>
46<section>
47<title>Make your Choice</title>
48<subsection> 106</subsection>
49<title>Introduction</title>
50<body>
51
52<p>
53Still interested in trying out Gentoo? Well, then it is now time to
54choose the installation medium you want to use. Yes, you have the
55choice, no, they are not all equal, and yes, the result is always the same: a
56Gentoo base system.
57</p>
58
59<p>
60The installation media we will describe are:
61</p>
62
63<ul>
64<li>The Gentoo Alpha LiveCD</li>
65</ul>
66
67<p>
68Before we continue, let's explain our three-stage installation.
69</p>
70
71</body>
72</subsection> 107<subsection>
73<subsection> 108<title>Gentoo Minimal Installation CD</title>
74<title>The Three Stages</title>
75<body> 109<body>
76 110
77<p>
78Gentoo Linux can be installed using one of three <e>stage</e> tarball files.
79The one you choose depends on how much of the system you want to compile
80yourself. The <e>stage1</e> tarball is used when you want to bootstrap and
81build the entire system from scratch. The <e>stage2</e> tarball is used for
82building the entire system from a bootstrapped &quot;semi-compiled&quot; state.
83The <e>stage3</e> tarball already contains a basic Gentoo Linux system that has
84been built for you.
85</p> 111<p>
86 112The Minimal Installation CD is called <c><keyval id="min-cd-name"/></c> and
113takes up only <keyval id="min-cd-size"/> MB of diskspace. You can use this
114Installation CD to install Gentoo, but <e>only</e> with a working Internet
115connection.
87<p> 116</p>
88Now what stage do you have to choose? 117<!--
89</p>
90
91<p>
92Starting from a <e>stage1</e> allows you to have total control over the
93optimization settings and optional build-time functionality that is
94initially enabled on your system. This makes <e>stage1</e> installs good for
95power users who know what they are doing. It is also a great
96installation method for those who would like to know more about the
97inner workings of Gentoo Linux.
98</p>
99
100<table> 118<table>
101<tr> 119<tr>
102 <th>Stage1</th> 120 <th>Minimal Installation CD</th>
103 <th>Pros and Cons</th> 121 <th>Pros and Cons</th>
104</tr> 122</tr>
105<tr> 123<tr>
106 <th>+</th> 124 <th>+</th>
107 <ti> 125 <ti>Smallest download</ti>
108 Allows you to have total control over the optimization settings and optional
109 build-time functionality that is initially enabled on your system
110 </ti>
111</tr>
112<tr>
113 <th>+</th>
114 <ti>Suitable for powerusers that know what they are doing</ti>
115</tr>
116<tr>
117 <th>+</th>
118 <ti>Allows you to learn more about the inner workings of Gentoo</ti>
119</tr>
120<tr>
121 <th>-</th>
122 <ti>Takes a long time to finish the installation</ti>
123</tr> 126</tr>
124<tr> 127<tr>
125 <th>-</th> 128 <th>-</th>
126 <ti> 129 <ti>
127 If you don't intend to tweak the settings, it is probably a waste of time 130 Contains no stage3 tarball, no Portage snapshot, no prebuilt packages and is
131 therefore not suitable for networkless installation
128 </ti> 132 </ti>
129</tr> 133</tr>
130</table> 134</table>
131 135
136</body>
137</subsection>
138<subsection>
139<title>Gentoo's Universal Installation CD</title>
140<body>
141
132<p> 142<p>
133<e>Stage2</e> installs allow you to skip the bootstrap process and doing this 143The Universal Installation CD is called <c>install-alpha-universal-2008.0.iso</c>
134is fine if you are happy with the optimization settings that we chose 144and consumes about 316 MB on a CD. You can use this Installation CD to install
135for your particular <e>stage2</e> tarball. 145Gentoo, and you can even use it to install Gentoo without a working internet
146connection.
136</p> 147</p>
137 148
138<table> 149<table>
139<tr> 150<tr>
140 <th>Stage2</th> 151 <th>Universal Installation CD</th>
141 <th>Pros and Cons</th> 152 <th>Pros and Cons</th>
142</tr> 153</tr>
143<tr> 154<tr>
144 <th>+</th> 155 <ti>+</ti>
145 <ti>You don't need to bootstrap</ti> 156 <ti>
146</tr> 157 Contains everything you need. You can even install without a network
158 connection.
159 </ti>
147<tr> 160</tr>
148 <th>+</th>
149 <ti>Faster than starting with stage1</ti>
150</tr> 161<tr>
151<tr>
152 <th>+</th>
153 <ti>You can still tweak your settings</ti>
154</tr>
155<tr>
156 <th>-</th> 162 <ti>-</ti>
157 <ti>You cannot tweak as much as with a stage1</ti> 163 <ti>
158</tr> 164 Huge download
159<tr> 165 </ti>
160 <th>-</th>
161 <ti>It's not the fastest way to install Gentoo</ti>
162</tr>
163<tr>
164 <th>-</th>
165 <ti>You have to accept the optimizations we chose for the bootstrap</ti>
166</tr> 166</tr>
167</table> 167</table>
168 168
169<p>
170Choosing to go with a <e>stage3</e> allows for the fastest install of Gentoo
171Linux, but also means that your base system will have the optimization
172settings that we chose for you (which to be honest, are good settings
173and were carefully chosen to enhance performance while maintaining
174stability). <e>stage3</e> is also required if you want to install Gentoo using
175prebuilt packages.
176</p>
177
178<table>
179<tr>
180 <th>Stage3</th>
181 <th>Pros and Cons</th>
182</tr>
183<tr>
184 <th>+</th>
185 <ti>Fastest way to get a Gentoo base system</ti>
186</tr>
187<tr>
188 <th>-</th>
189 <ti>You cannot tweak the base system - it's built already</ti>
190</tr>
191<tr>
192 <th>-</th>
193 <ti>You cannot brag about having used stage1 or stage2</ti>
194</tr>
195</table>
196
197<p>
198Write down (or remember) what stage you want to use. You need this later when
199you decide what LiveCD (or other installation medium) you want to use. You might
200be interested to know that, if you decide to use different optimization settings
201after having installed Gentoo, you will be able to recompile your entire system
202with the new optimization settings.
203</p>
204
205<p>
206Now take a look at the available installation media.
207</p>
208
209</body> 169</body>
210</subsection>
211<subsection> 170</subsection>
212<title>The Gentoo Alpha LiveCD</title> 171
172<subsection>
173<title>Other CDs</title>
174<body>
175
176<p>
177You might find a Package CD on one of our mirrors. This CD is not an
178Installation CD but an additional resource that can be exploited during a
179networkless installation. It contains prebuilt packages (also known as the GRP
180set) that allow you to easily and quickly install additional applications
181(such as OpenOffice.org, KDE, GNOME, ...) immediately after the networkless
182Gentoo installation.
183</p>
184
185<p>
186If you intend to use the Packages CD to quickly install additional software,
187make sure that you use the same subarchitecture as the stage3 tarball you use.
188</p>
189-->
213<body> 190</body>
191</subsection>
192<subsection>
193<title>The Stage3 Tarball</title>
194<body>
214 195
215<p>
216The <e>Gentoo Alpha LiveCD</e> is a bootable CD which contain a
217self-sustained Gentoo environment. It allows you to boot Linux from the CD.
218During the boot process your hardware is detected and the appropriate drivers
219are loaded. It is maintained by Gentoo developers.
220</p> 196<p>
221 197A stage3 tarball is an archive containing a minimal Gentoo environment, suitable
198to continue the Gentoo installation using the instructions in this manual.
199Previously, the Gentoo Handbook described the installation using one of three
200stage tarballs. While Gentoo still offers stage1 and stage2 tarballs, the
201official installation method uses the stage3 tarball. If you are interested in
202performing a Gentoo installation using a stage1 or stage2 tarball, please read
203the Gentoo FAQ on <uri link="/doc/en/faq.xml#stage12">How do I Install Gentoo
204Using a Stage1 or Stage2 Tarball?</uri>
222<p> 205</p>
223The <e>Gentoo Alpha LiveCD</e> is a small, no-nonsense, bootable CD which sole 206
224purpose is to boot the system, prepare the networking and continue with the 207<p>
225Gentoo installation. It does not contain any stages (or, in some cases, a 208Stage3 tarballs can be downloaded from <path><keyval
226single stage1 file), source code or precompiled packages. For example the 209id="release-dir"/>current-stage3/</path> on any of the <uri
227alpha variant of this LiveCD can be found in the 210link="/main/en/mirrors.xml">Official Gentoo Mirrors</uri> and are not provided
228<path>releases/1.4_rc1/alpha</path> subdirectory and is called 211on the LiveCD.
229<c>gentoo-alpha-1.4rc1-test3.iso.bz2</c>.
230</p> 212</p>
231 213
232</body> 214</body>
233</subsection> 215</subsection>
234</section> 216</section>
217<!-- STOP -->
235<section> 218<section>
236<title>Download, Burn and Boot the Gentoo LiveCD</title> 219<title>Download, Burn and Boot a Gentoo Installation CD</title>
237<subsection> 220<subsection>
238<title>Downloading and Burning the LiveCDs</title> 221<title>Downloading and Burning the Installation CDs</title>
239<body> 222<body>
240 223
241<p>
242You have chosen to use a Gentoo LiveCD (if not, then you are reading the
243wrong document). We'll first start by downloading and burning the chosen
244LiveCD.
245</p> 224<p>
246 225You have chosen to use a Gentoo Installation CD. We'll first start by
226downloading and burning the chosen Installation CD. We previously discussed
227the several available Installation CDs, but where can you find them?
247<p> 228</p>
248Visit one of our <uri 229
249link="/main/en/mirrors.xml">mirrors</uri> and go to
250<path>releases/1.4rc1/alpha</path> which is where the LiveCD(s) of your choice
251are located. Inside that directory you'll find so-called ISO-files. Those are
252full CD images which you can write on a CD-R.
253</p> 230<p>
254 231You can download any of the Installation CDs from one of our <uri
232link="/main/en/mirrors.xml">mirrors</uri>. The Installation CDs are located in
233the <path><keyval id="release-dir"/>current-iso/</path> directory.
255<p> 234</p>
235
236<p>
237Inside that directory you'll find ISO files. Those are full CD images which you
238can write on a CD-R.
239</p>
240
241<p>
256In case you wonder if your downloaded file is corrupted or not, you can 242In case you wonder if your downloaded file is corrupted or not, you can check
257check its MD5 checksum and compare it with the MD5 checksum we provide (such as 243its MD5 checksum and compare it with the MD5 checksum we provide (such as
258<path>gentoo-alpha-1.4rc1-test3.iso.bz2.md5sum</path>). You can check the MD5 244<path><keyval id="min-cd-name"/>.DIGESTS</path>). You can check the MD5 checksum
259checksum with the <c>md5sum</c> tool under Linux/Unix or <uri 245with the <c>md5sum</c> tool under Linux/Unix or <uri
260link="http://www.md5summer.org">md5summer</uri> for Windows. 246link="http://www.etree.org/md5com.html">md5sum</uri> for Windows.
261</p>
262
263<p> 247</p>
264Once downloaded, decompress the ISO file (as it is stored in a compressed format 248
265using the Burrows-Wheeler text compression algorithm) using <c>bunzip2</c> (on
266Unix/Linux systems):
267</p> 249<p>
250Another way to check the validity of the downloaded file is to use GnuPG to
251verify the cryptographic signature that we provide (the file ending with
252<path>.asc</path>). Download the signature file and obtain the public key:
253</p>
268 254
269<pre caption="Decompressing the iso.bz2 file"> 255<pre caption="Obtaining the public key">
270# <i>bunzip2 gentoo-alpha-1.4rc1-test3.iso.bz2</i> 256$ <i>gpg --keyserver subkeys.pgp.net --recv-keys 2D182910</i>
271</pre> 257</pre>
272 258
273<p> 259<p>
260Now verify the signature:
261</p>
262
263<pre caption="Verify the files">
264<comment>(Verify the cryptographic signature)</comment>
265$ <i>gpg --verify &lt;downloaded iso.DIGESTS.asc&gt;</i>
266<comment>(Verify the checksum)</comment>
267$ <i>sha1sum -c &lt;downloaded iso.DIGESTS.asc&gt;</i>
268</pre>
269
270<p>
274To burn the downloaded ISO(s), you have to select raw-burning. How you 271To burn the downloaded ISO(s), you have to select raw-burning. How you
275do this is highly program-dependent. We will discuss a couple of popular 272do this is highly program-dependent. We will discuss <c>cdrecord</c> and
276tools on how to do this. 273<c>K3B</c> here; more information can be found in our <uri
274link="/doc/en/faq.xml#isoburning">Gentoo FAQ</uri>.
277</p> 275</p>
278 276
279<ul> 277<ul>
280 <li> 278 <li>
281 With EasyCD Creator you select <c>File</c>, <c>Record CD 279 With cdrecord, you simply type <c>cdrecord dev=/dev/hdc &lt;downloaded iso
282 from CD image</c>. Then you change the <c>Files of type</c> to <c>ISO image 280 file&gt;</c> (replace <path>/dev/hdc</path> with your CD-RW drive's
283 file</c>. Then locate the ISO file and click <c>Open</c>. When you click on 281 device path).
284 <c>Start recording</c> the ISO image will be burned correctly onto the CD-R.
285 </li> 282 </li>
286 <li> 283 <li>
287 With Nero Burning ROM, select <c>File</c>, <c>Burn CD image</c>. Set the 284 With K3B, select <c>Tools</c> &gt; <c>Burn CD Image</c>. Then you can locate
288 type of file to <c>*.*</c> and select the ISO file. Older versions of Nero 285 your ISO file within the 'Image to Burn' area. Finally click <c>Start</c>.
289 will tell you they don't recognize the format -- confirm here, it does
290 recognize it but doesn't know it yet :) In the next dialog, set the
291 following parameters:
292 <ul>
293 <li>Type of image: <c>Data Mode 1</c></li>
294 <li>Block size: <c>2048 bytes</c></li>
295 <li>File precursor and length of the image trailer: <c>0 bytes</c></li>
296 <li>Scrambled: <c>no</c></li>
297 <li>Swapped: <c>no</c></li>
298 </ul>
299 Now click on <c>OK</c> and then <c>Burn</c> (the CD-R)
300 </li>
301 <li>
302 With cdrecord, you simply type <c>cdrecord dev=/dev/hdc</c> (replace
303 <path>/dev/hdc</path> with your CD-RW drive's device path) followed
304 by the path to the ISO file :)
305 </li> 286 </li>
306</ul> 287</ul>
307 288
308</body> 289</body>
309</subsection> 290</subsection>
310<subsection> 291<subsection>
311<title>Booting the Alpha LiveCD(s)</title> 292<title>Booting the Installation CD</title>
312<body> 293<body>
313 294
314<p> 295<p>
315When your Alpha is powered on, the first thing that gets started is the 296When your Alpha is powered on, the first thing that gets started is the
316firmware. It is loosely synonymous with the BIOS software on PC systems. There 297firmware. It is loosely synonymous with the BIOS software on PC systems. There
318Manual</e>) and ARC (<e>Advanced Risc Console</e>). 299Manual</e>) and ARC (<e>Advanced Risc Console</e>).
319</p> 300</p>
320 301
321<p> 302<p>
322SRM is based on the Alpha Console Subsystem specification, which provides an 303SRM is based on the Alpha Console Subsystem specification, which provides an
323operating environment for OpenVMS, Tru64 UNIX, and Linux operating systems. ARM 304operating environment for OpenVMS, Tru64 UNIX, and Linux operating systems. ARC
324is based on the Advanced RISC Computing (ARC) specification, which provides 305is based on the Advanced RISC Computing (ARC) specification, which provides
325an operating environment for Windows NT. 306an operating environment for Windows NT. You can find a
326</p> 307<uri link="http://www.alphalinux.org/faq/SRM-HOWTO/">detailed guide</uri> on
327 308using SRM over at the Alpha Linux website.
328<p> 309</p>
310
311<p>
329If your Alpha system supports both SRC and ARCs (ARC, AlphaBIOS, ARCSBIOS) you 312If your Alpha system supports both SRM and ARCs (ARC, AlphaBIOS, ARCSBIOS) you
330should follow <uri link="http://www.alphalinux.org/faq/x31.html">these 313should follow <uri link="http://www.alphalinux.org/faq/x31.html">these
331instructions</uri> for switching to SRM. If your system already uses SRM, you 314instructions</uri> for switching to SRM. If your system already uses SRM, you
332are all set. If your system can only use ARCs (Ruffian, nautilus, xl, etc.) you 315are all set. If your system can only use ARCs (Ruffian, nautilus, xl, etc.) you
333will need to choose <c>MILO</c> later on when we are talking about bootloaders. 316will need to choose <c>MILO</c> later on when we are talking about bootloaders.
334</p> 317</p>
335 318
336<p> 319<p>
337Now to boot an Alpha LiveCD, put the CD-ROM in the tray and reboot the system. 320Now to boot an Alpha Installation CD, put the CD-ROM in the tray and reboot the
338You can use SRM to boot the LiveCD. If you cannot do that, you will have to use 321system. You can use SRM to boot the Installation CD. If you cannot do that, you
339<c>MILO</c>. If you don't have <c>MILO</c> installed already, use one of the 322will have to use <c>MILO</c>.
340precompiled <c>MILO</c> images available on <uri
341link="http://dev.gentoo.org/~taviso/milo/">taviso's homepage</uri>.
342</p> 323</p>
343 324
344<pre caption="Booting a CD-ROM using SRM"> 325<pre caption="Booting a CD-ROM using SRM">
345<comment>(List available hardware drives)</comment> 326<comment>(List available hardware drives)</comment>
346&gt;&gt;&gt; <i>show device</i> 327&gt;&gt;&gt; <i>show device</i>
347dkb0.0.1.4.0 DKB0 TOSHIBA CDROM 328dkb0.0.1.4.0 DKB0 TOSHIBA CDROM
348<comment>(...)</comment> 329<comment>(...)</comment>
349<comment>(Substitute dkb0 with your CD-ROM drive device)</comment> 330<comment>(Substitute dkb0 with your CD-ROM drive device)</comment>
350&gt;&gt;&gt; <i>boot dkb0 -flags 0</i> 331&gt;&gt;&gt; <i>boot dkb0 -flags 0</i>
332<comment>(This flag will use serial port ttyS0 as the default console)</comment>
333&gt;&gt;&gt; <i>boot dkb0 -flags 2</i>
351</pre> 334</pre>
352 335
353<pre caption="Booting a CD-ROM using MILO"> 336<pre caption="Booting a CD-ROM using MILO">
354<comment>(Substitute hdb with your CD-ROM drive device)</comment> 337<comment>(Substitute sdb with your CD-ROM drive device)</comment>
355MILO&gt; <i>boot hdb:boot/vmlinuz initrd=initrd.img root=/dev/ram0 init=/linuxrc</i> 338MILO&gt; <i>boot sdb:/boot/gentoo initrd=/boot/gentoo.igz root=/dev/ram0 init=/linuxrc looptype=squashfs loop=/image.squashfs cdroot</i>
339<comment>(Using serial port ttyS0 as the default console)</comment>
340MILO&gt; <i>boot sdb:/boot/gentoo initrd=/boot/gentoo.igz root=/dev/ram0 init=/linuxrc looptype=squashfs loop=/image.squashfs console=ttyS0 cdroot</i>
356</pre> 341</pre>
357 342
358<p> 343<p>
359You should have a root ("#") prompt on the current console and can also switch 344You should have a root ("#") prompt on the current console and can also switch
360to other consoles by pressing Alt-F2, Alt-F3 and Alt-F4. Get back to the one you 345to other consoles by pressing Alt-F2, Alt-F3 and Alt-F4. Get back to the one you
365Now continue with <uri link="#hardware">Extra Hardware Configuration</uri>. 350Now continue with <uri link="#hardware">Extra Hardware Configuration</uri>.
366</p> 351</p>
367 352
368</body> 353</body>
369</subsection> 354</subsection>
370<subsection id="hardware">
371<title>Extra Hardware Configuration</title>
372<body>
373 355
374<p>
375When the Live CD boots, it tries to detect all your hardware devices and
376loads the appropriate kernel modules to support your hardware. In the
377vast majority of cases, it does a very good job. However, in some cases (the
378SPARC LiveCDs don't even do autodetection), it may not auto-load the kernel
379modules you need. If the PCI auto-detection missed some of your system's
380hardware, you will have to load the appropriate kernel modules manually.
381</p>
382
383<p>
384In the next example we try to load the <c>8139too</c> module (support for
385certain kinds of network interfaces):
386</p>
387
388<pre caption="Loading kernel modules">
389# <i>modprobe 8139too</i>
390</pre>
391
392</body>
393</subsection> 356<subsection>
357<include href="hb-install-bootconfig.xml"/>
394<subsection> 358</subsection>
395<title>Optional: Tweaking Hard Disk Performance</title>
396<body>
397 359
398<p>
399If you are an advanced user, you might want to tweak the IDE hard disk
400performance using <c>hdparm</c>. With the <c>-tT</c> options you can
401test the performance of your disk (execute it several times to get a
402more precise impression):
403</p>
404
405<pre caption="Testing disk performance">
406# <i>hdparm -tT /dev/hda</i>
407</pre>
408
409<p>
410To tweak, you can use any of the following examples (or experiment
411yourself) which use <path>/dev/hda</path> as disk (substitute with your
412disk):
413</p>
414
415<pre caption="Tweaking hard disk performance">
416<comment>Activate DMA:</comment> # <i>hdparm -d 1 /dev/hda</i>
417<comment>Activate DMA + Safe Performance-enhancing Options:</comment> # <i>hdparm -d 1 -A 1 -m 16 -u 1 -a 64 /dev/hda</i>
418</pre>
419
420</body>
421</subsection>
422<subsection>
423<title>Optional: User Accounts</title>
424<body>
425
426<p>
427If you plan on giving other people access to your installation
428environment or you want to chat using <c>irssi</c> without root privileges (for
429security reasons), you need to create the necessary user accounts and change
430the root password.
431</p>
432
433<p>
434To change the root password, use the <c>passwd</c> utility:
435</p>
436
437<pre caption="Changing the root password">
438# <i>passwd</i>
439New password: <comment>(Enter your new password)</comment>
440Re-enter password: <comment>(Re-enter your password)</comment>
441</pre>
442
443<p>
444To create a user account, we first enter his credentials, followed by
445its password. We use <c>useradd</c> and <c>passwd</c> for these tasks.
446In the next example, we create a user called &quot;john&quot;.
447</p>
448
449<pre caption="Creating a user account">
450# <i>useradd john</i>
451# <i>passwd john</i>
452New password: <comment>(Enter john's password)</comment>
453Re-enter password: <comment>(Re-enter john's password)</comment>
454</pre>
455
456<p>
457You can change your user id from root to the newly created user by using
458<c>su</c>:
459</p>
460
461<pre caption="Changing user id">
462# <i>su john -</i>
463</pre>
464
465</body>
466</subsection>
467<subsection>
468<title>Optional: Starting the SSH Daemon</title>
469<body>
470
471<p>
472If you want to allow other users to access your computer during the
473Gentoo installation (perhaps because those users are going to help you
474install Gentoo, or even do it for you), you need to create a user
475account for them and perhaps even provide them with your root password
476(<e>only</e> do that <e>if</e> you <b>fully trust</b> that user).
477</p>
478
479<p>
480To fire up the SSH daemon, execute the following command:
481</p>
482
483<pre caption="Starting the SSH daemon">
484# <i>/etc/init.d/sshd start</i>
485</pre>
486
487<p>
488To be able to use sshd, you first need to setup your networking. Continue with
489the chapter on <uri link="?part=1&amp;chap=3">Configuring your Network</uri>.
490</p>
491
492</body>
493</subsection>
494</section> 360</section>
495</sections> 361</sections>

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