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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 1.24 2005/01/04 18:11:20 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 10
11<version>1.20</version> 11<version>12</version>
12<date>2005-01-04</date> 12<date>2011-02-26</date>
13 13
14<section> 14<section>
15<title>Hardware Requirements</title> 15<title>Hardware Requirements</title>
16<subsection> 16<subsection>
17<title>Introduction</title> 17<title>Introduction</title>
51</table> 51</table>
52 52
53</body> 53</body>
54</subsection> 54</subsection>
55</section> 55</section>
56<!-- Copy/paste from the hb-install-x86-medium.xml file but no Universal LiveCD. 56
57 Also s/x86/alpha -->
58<!-- START -->
59<section> 57<section>
60<title>The Gentoo Installation Approaches</title> 58<title>The Gentoo Installation CD</title>
61<subsection> 59<subsection>
62<title>Introduction</title> 60<title>Introduction</title>
63<body> 61<body>
64 62
65<p> 63<p>
66Gentoo Linux can be installed using one of three <e>stage</e> tarball files.
67A stage file is a tarball (compressed archive) that contains a minimal
68environment.
69</p>
70
71<ul>
72 <li>
73 A stage1 file contains nothing more than a compiler, Portage (Gentoo's
74 software management system) and a couple of packages on which the compiler
75 or Portage depends.
76 </li>
77 <li>
78 A stage2 file contains a so-called bootstrapped system, a minimal
79 environment from which one can start building all other necessary
80 applications that make a Gentoo environment complete.
81 </li>
82 <li>
83 A stage3 file contains a prebuilt minimal system which is almost fully
84 deployable. It only lacks a few applications where you, the Gentoo user,
85 needs to choose which one you want to install.
86 </li>
87</ul>
88
89<p>
90To help you decide what stage file you want to use, we have written down the
91major advantages and disadvantages of each stage file.
92</p>
93
94</body>
95</subsection>
96<subsection>
97<title>A Stage1 Approach</title>
98<body>
99
100<p>
101A <e>stage1</e> is used when you want to bootstrap and build the entire system
102from scratch.
103</p>
104
105<p>
106Starting from a stage1 allows you to have total control over the
107optimization settings and optional build-time functionality that is
108initially enabled on your system. This makes <e>stage1</e> installs good for
109power users who know what they are doing. It is also a great
110installation method for those who would like to know more about the
111inner workings of Gentoo Linux.
112</p>
113
114<table>
115<tr>
116 <th>Stage1</th>
117 <th>Pros and Cons</th>
118</tr>
119<tr>
120 <th>+</th>
121 <ti>
122 Allows you to have total control over the optimization settings and optional
123 build-time functionality that is initially enabled on your system
124 </ti>
125</tr>
126<tr>
127 <th>+</th>
128 <ti>Suitable for powerusers that know what they are doing</ti>
129</tr>
130<tr>
131 <th>+</th>
132 <ti>Allows you to learn more about the inner workings of Gentoo</ti>
133</tr>
134<tr>
135 <th>-</th>
136 <ti>Takes a long time to finish the installation</ti>
137</tr>
138<tr>
139 <th>-</th>
140 <ti>
141 If you don't intend to tweak the settings, it is a waste of time
142 </ti>
143</tr>
144</table>
145
146</body>
147</subsection>
148<subsection>
149<title>A Stage2 Approach</title>
150<body>
151
152<p>
153A <e>stage2</e> is used for building the entire system from a bootstrapped
154"semi-compiled" state.
155</p>
156
157<p>
158Stage2 installs allow you to skip the bootstrap process; doing this
159is fine if you are happy with the optimization settings that we chose
160for your particular stage2 tarball.
161</p>
162
163<table>
164<tr>
165 <th>Stage2</th>
166 <th>Pros and Cons</th>
167</tr>
168<tr>
169 <th>+</th>
170 <ti>You don't need to bootstrap</ti>
171</tr>
172<tr>
173 <th>+</th>
174 <ti>Faster than starting with stage1</ti>
175</tr>
176<tr>
177 <th>+</th>
178 <ti>You can still tweak your settings</ti>
179</tr>
180<tr>
181 <th>-</th>
182 <ti>You cannot tweak as much as with a stage1</ti>
183</tr>
184<tr>
185 <th>-</th>
186 <ti>It's still not the fastest way to install Gentoo</ti>
187</tr>
188<tr>
189 <th>-</th>
190 <ti>You have to accept the optimizations we chose for the bootstrap</ti>
191</tr>
192</table>
193
194</body>
195</subsection>
196<subsection>
197<title>A Stage3 Approach</title>
198<body>
199
200<p>
201A <e>stage3</e> installation contains a basic Gentoo Linux system that has been
202built for you. You will only need to build a few packages of which we can't
203decide for you which one to choose.
204</p>
205
206<p>
207Choosing to go with a stage3 allows for the fastest install of Gentoo
208Linux, but also means that your base system will have the optimization
209settings that we chose for you (which to be honest, are good settings
210and were carefully chosen to enhance performance while maintaining
211stability). Stage3 is also required if you want to install Gentoo using
212prebuilt packages or without a network connection.
213</p>
214
215<table>
216<tr>
217 <th>Stage3</th>
218 <th>Pros and Cons</th>
219</tr>
220<tr>
221 <th>+</th>
222 <ti>Fastest way to get a Gentoo base system</ti>
223</tr>
224<tr>
225 <th>-</th>
226 <ti>You cannot tweak the base system - it's built already</ti>
227</tr>
228</table>
229
230<p>
231You might be interested to know that, if you decide to use different
232optimization settings after having installed Gentoo, you will be able to
233recompile your entire system with the new optimization settings.
234</p>
235
236</body>
237</subsection>
238</section>
239<section>
240<title>The Gentoo LiveCDs</title>
241<subsection>
242<title>Introduction</title>
243<body>
244
245<p>
246The <e>Gentoo LiveCDs</e> are bootable CDs which contain a 64The <e>Gentoo Installation CDs</e> are bootable CDs which contain a
247self-sustained Gentoo environment. They allow you to boot Linux from the CD. 65self-sustained Gentoo environment. They allow you to boot Linux from the CD.
248During the boot process your hardware is detected and the appropriate drivers 66During the boot process your hardware is detected and the appropriate drivers
249are loaded. They are maintained by Gentoo developers. 67are loaded. They are maintained by Gentoo developers.
250</p> 68</p>
251 69
252<p> 70<p>
253All LiveCDs allow you to boot, set up networking, initialize your 71All Installation CDs allow you to boot, set up networking, initialize your
254partitions and start installing Gentoo from the Internet. We currently provide 72partitions and start installing Gentoo from the Internet.
255two LiveCDs which are equaly suitable to install Gentoo from, as long as you're
256planning on performing an Internet-based installation using the latest version
257of the available packages.
258</p>
259
260<p> 73</p>
74
75<!--
76<impo>
261If you whish to install Gentoo without a working Internet connection, please use 77If you wish to install Gentoo without a working Internet connection, please use
262the installation instructions described in the <uri 78the installation instructions described in the <uri
263link="2004.3/index.xml">Gentoo 2004.3 Handbooks</uri>. This is currently not 79link="2008.0/index.xml">Gentoo 2008.0 Handbooks</uri>.
264supported for the Alpha architecture though. 80</impo>
81
265</p> 82<p>
266 83The two Installation CDs we currently provide are:
267<p> 84</p>
268For the Alpha architecture, we only provide a <e>Minimal</e> LiveCD, 85
269a small, no-nonsense, bootable CD which sole purpose is to boot the 86<ul>
270system, prepare the networking and continue with the Gentoo installation. 87 <li>
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.
91 </li>
92 <li>
93 The Gentoo Universal Installation CD, a bootable CD with the same abilities
94 as the Minimal Installation CD. Additionally, it contains several stage3
95 tarballs (optimized for the individual subarchitectures).
96 </li>
97</ul>
98
271</p> 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-->
272 104
273</body> 105</body>
274</subsection>
275<subsection> 106</subsection>
107<subsection>
276<title>Gentoo's Minimal LiveCD</title> 108<title>Gentoo Minimal Installation CD</title>
277<body> 109<body>
278 110
279<p>
280The Minimal LiveCD is called <c>install-alpha-minimal-2004.3-r1.iso</c> and
281takes up only 54 MB of diskspace. You can use this LiveCD to install Gentoo,
282but always with a working Internet connection only.
283</p> 111<p>
284 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.
116</p>
117<!--
285<table> 118<table>
286<tr> 119<tr>
287 <th>Minimal LiveCD</th> 120 <th>Minimal Installation CD</th>
288 <th>Pros and Cons</th> 121 <th>Pros and Cons</th>
289</tr> 122</tr>
290<tr> 123<tr>
291 <th>+</th> 124 <th>+</th>
292 <ti>Smallest download</ti> 125 <ti>Smallest download</ti>
293</tr> 126</tr>
294<tr> 127<tr>
295 <th>+</th>
296 <ti>
297 You can do a stage1, stage2 or stage3 by getting the stage tarball off the
298 net
299 </ti>
300</tr>
301<tr>
302 <th>-</th> 128 <th>-</th>
303 <ti> 129 <ti>
304 Contains no stages, no Portage snapshot, no prebuilt packages and is 130 Contains no stage3 tarball, no Portage snapshot, no prebuilt packages and is
305 therefore not suitable for networkless installation 131 therefore not suitable for networkless installation
306 </ti> 132 </ti>
307</tr> 133</tr>
308</table> 134</table>
135
136</body>
137</subsection>
138<subsection>
139<title>Gentoo's Universal Installation CD</title>
140<body>
141
142<p>
143The Universal Installation CD is called <c>install-alpha-universal-2008.0.iso</c>
144and consumes about 316 MB on a CD. You can use this Installation CD to install
145Gentoo, and you can even use it to install Gentoo without a working internet
146connection.
147</p>
148
149<table>
150<tr>
151 <th>Universal Installation CD</th>
152 <th>Pros and Cons</th>
153</tr>
154<tr>
155 <ti>+</ti>
156 <ti>
157 Contains everything you need. You can even install without a network
158 connection.
159 </ti>
160</tr>
161<tr>
162 <ti>-</ti>
163 <ti>
164 Huge download
165 </ti>
166</tr>
167</table>
168
169</body>
170</subsection>
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-->
190</body>
191</subsection>
192<subsection>
193<title>The Stage3 Tarball</title>
194<body>
195
196<p>
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>
205</p>
206
207<p>
208Stage3 tarballs can be downloaded from <path><keyval
209id="release-dir"/>current-stage3/</path> on any of the <uri
210link="/main/en/mirrors.xml">Official Gentoo Mirrors</uri> and are not provided
211on the LiveCD.
212</p>
309 213
310</body> 214</body>
311</subsection> 215</subsection>
312</section> 216</section>
313<!-- STOP --> 217<!-- STOP -->
314<section> 218<section>
315<title>Download, Burn and Boot a Gentoo LiveCD</title> 219<title>Download, Burn and Boot a Gentoo Installation CD</title>
316<subsection> 220<subsection>
317<title>Downloading and Burning the LiveCDs</title> 221<title>Downloading and Burning the Installation CDs</title>
318<body> 222<body>
319 223
320<p>
321You have chosen to use a Gentoo LiveCD. We'll first start by downloading and
322burning the chosen LiveCD. We previously discussed the several available
323LiveCDs, but where can you find them?
324</p> 224<p>
325 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?
326<p> 228</p>
327You can download any of the LiveCDs (and, if you want to, a Packages CD as 229
328well) from one of our <uri link="/main/en/mirrors.xml">mirrors</uri>. The
329LiveCDs are located in the <path>releases/alpha/2004.3/livecd</path> directory.
330</p> 230<p>
331 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.
332<p> 234</p>
235
236<p>
333Inside that directory you'll find so-called ISO-files. Those are full CD images 237Inside that directory you'll find ISO files. Those are full CD images which you
334which you can write on a CD-R. 238can write on a CD-R.
335</p>
336
337<p> 239</p>
240
241<p>
338In 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
339check 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
340<path>install-alpha-minimal-2004.3.iso.md5</path>). You can check the MD5 checksum 244<path><keyval id="min-cd-name"/>.DIGESTS</path>). You can check the MD5 checksum
341with the <c>md5sum</c> tool under Linux/Unix or <uri 245with the <c>md5sum</c> tool under Linux/Unix or <uri
342link="http://www.etree.org/md5com.html">md5sum</uri> for Windows. 246link="http://www.etree.org/md5com.html">md5sum</uri> for Windows.
343</p> 247</p>
344 248
345<p> 249<p>
347verify the cryptographic signature that we provide (the file ending with 251verify the cryptographic signature that we provide (the file ending with
348<path>.asc</path>). Download the signature file and obtain the public key: 252<path>.asc</path>). Download the signature file and obtain the public key:
349</p> 253</p>
350 254
351<pre caption="Obtaining the public key"> 255<pre caption="Obtaining the public key">
352$ <i>gpg --keyserver pgp.mit.edu --recv-keys 17072058</i> 256$ <i>gpg --keyserver subkeys.pgp.net --recv-keys 2D182910</i>
353</pre> 257</pre>
354 258
355<p> 259<p>
356Now verify the signature: 260Now verify the signature:
357</p> 261</p>
358 262
359<pre caption="Verify the cryptographic signature"> 263<pre caption="Verify the files">
360$ <i>gpg --verify &lt;signature file&gt; &lt;downloaded iso&gt;</i> 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>
361</pre> 268</pre>
362 269
363<p> 270<p>
364To 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
365do this is highly program-dependent. We will discuss <c>cdrecord</c> and 272do this is highly program-dependent. We will discuss <c>cdrecord</c> and
369 276
370<ul> 277<ul>
371 <li> 278 <li>
372 With cdrecord, you simply type <c>cdrecord dev=/dev/hdc &lt;downloaded iso 279 With cdrecord, you simply type <c>cdrecord dev=/dev/hdc &lt;downloaded iso
373 file&gt;</c> (replace <path>/dev/hdc</path> with your CD-RW drive's 280 file&gt;</c> (replace <path>/dev/hdc</path> with your CD-RW drive's
374 device path) followed by the path to the ISO file :) 281 device path).
375 </li> 282 </li>
376 <li> 283 <li>
377 With K3B, select <c>Tools</c> &gt; <c>CD</c> &gt; <c>Burn Image</c>. Then 284 With K3B, select <c>Tools</c> &gt; <c>Burn CD Image</c>. Then you can locate
378 you can locate your ISO file within the 'Image to Burn' area. Finally click 285 your ISO file within the 'Image to Burn' area. Finally click <c>Start</c>.
379 <c>Start</c>.
380 </li> 286 </li>
381</ul> 287</ul>
382 288
383</body> 289</body>
384</subsection> 290</subsection>
385<subsection> 291<subsection>
386<title>Booting the LiveCD</title> 292<title>Booting the Installation CD</title>
387<body> 293<body>
388 294
389<p> 295<p>
390When 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
391firmware. 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
393Manual</e>) and ARC (<e>Advanced Risc Console</e>). 299Manual</e>) and ARC (<e>Advanced Risc Console</e>).
394</p> 300</p>
395 301
396<p> 302<p>
397SRM is based on the Alpha Console Subsystem specification, which provides an 303SRM is based on the Alpha Console Subsystem specification, which provides an
398operating environment for OpenVMS, Tru64 UNIX, and Linux operating systems. ARM 304operating environment for OpenVMS, Tru64 UNIX, and Linux operating systems. ARC
399is based on the Advanced RISC Computing (ARC) specification, which provides 305is based on the Advanced RISC Computing (ARC) specification, which provides
400an operating environment for Windows NT. You can find a 306an operating environment for Windows NT. You can find a
401<uri link="http://www.alphalinux.org/faq/SRM-HOWTO/">detailed guide</uri> on 307<uri link="http://www.alphalinux.org/faq/SRM-HOWTO/">detailed guide</uri> on
402using SRM over at the Alpha Linux website. 308using SRM over at the Alpha Linux website.
403</p> 309</p>
404 310
405<p> 311<p>
406If 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
407should follow <uri link="http://www.alphalinux.org/faq/x31.html">these 313should follow <uri link="http://www.alphalinux.org/faq/x31.html">these
408instructions</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
409are 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
410will 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.
411</p> 317</p>
412 318
413<p> 319<p>
414Now 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
415You 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
416<c>MILO</c>. If you don't have <c>MILO</c> installed already, use one of the 322will have to use <c>MILO</c>.
417precompiled <c>MILO</c> images available on <uri
418link="http://dev.gentoo.org/~taviso/milo/">taviso's homepage</uri>.
419</p> 323</p>
420 324
421<pre caption="Booting a CD-ROM using SRM"> 325<pre caption="Booting a CD-ROM using SRM">
422<comment>(List available hardware drives)</comment> 326<comment>(List available hardware drives)</comment>
423&gt;&gt;&gt; <i>show device</i> 327&gt;&gt;&gt; <i>show device</i>
424dkb0.0.1.4.0 DKB0 TOSHIBA CDROM 328dkb0.0.1.4.0 DKB0 TOSHIBA CDROM
425<comment>(...)</comment> 329<comment>(...)</comment>
426<comment>(Substitute dkb0 with your CD-ROM drive device)</comment> 330<comment>(Substitute dkb0 with your CD-ROM drive device)</comment>
427&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>
428</pre> 334</pre>
429 335
430<pre caption="Booting a CD-ROM using MILO"> 336<pre caption="Booting a CD-ROM using MILO">
431<comment>(Substitute hdb with your CD-ROM drive device)</comment> 337<comment>(Substitute sdb with your CD-ROM drive device)</comment>
432MILO&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>
433</pre> 341</pre>
434 342
435<p> 343<p>
436You 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
437to 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
442Now continue with <uri link="#hardware">Extra Hardware Configuration</uri>. 350Now continue with <uri link="#hardware">Extra Hardware Configuration</uri>.
443</p> 351</p>
444 352
445</body> 353</body>
446</subsection> 354</subsection>
447<subsection id="hardware">
448<title>Extra Hardware Configuration</title>
449<body>
450 355
451<p>
452When the Live CD boots, it tries to detect all your hardware devices and
453loads the appropriate kernel modules to support your hardware. In the
454vast majority of cases, it does a very good job. However, in some cases (the
455SPARC LiveCDs don't even do autodetection), it may not auto-load the kernel
456modules you need. If the PCI auto-detection missed some of your system's
457hardware, you will have to load the appropriate kernel modules manually.
458</p>
459
460<p>
461In the next example we try to load the <c>8139too</c> module (support for
462certain kinds of network interfaces):
463</p>
464
465<pre caption="Loading kernel modules">
466# <i>modprobe 8139too</i>
467</pre>
468
469</body>
470</subsection> 356<subsection>
357<include href="hb-install-bootconfig.xml"/>
471<subsection> 358</subsection>
472<title>Optional: Tweaking Hard Disk Performance</title>
473<body>
474 359
475<p>
476If you are an advanced user, you might want to tweak the IDE hard disk
477performance using <c>hdparm</c>. With the <c>-tT</c> options you can
478test the performance of your disk (execute it several times to get a
479more precise impression):
480</p>
481
482<pre caption="Testing disk performance">
483# <i>hdparm -tT /dev/hda</i>
484</pre>
485
486<p>
487To tweak, you can use any of the following examples (or experiment
488yourself) which use <path>/dev/hda</path> as disk (substitute with your
489disk):
490</p>
491
492<pre caption="Tweaking hard disk performance">
493<comment>Activate DMA:</comment> # <i>hdparm -d 1 /dev/hda</i>
494<comment>Activate DMA + Safe Performance-enhancing Options:</comment> # <i>hdparm -d 1 -A 1 -m 16 -u 1 -a 64 /dev/hda</i>
495</pre>
496
497</body>
498</subsection>
499<subsection id="useraccounts">
500<title>Optional: User Accounts</title>
501<body>
502
503<p>
504If you plan on giving other people access to your installation
505environment or you want to chat using <c>irssi</c> without root privileges (for
506security reasons), you need to create the necessary user accounts and change
507the root password.
508</p>
509
510<p>
511To change the root password, use the <c>passwd</c> utility:
512</p>
513
514<pre caption="Changing the root password">
515# <i>passwd</i>
516New password: <comment>(Enter your new password)</comment>
517Re-enter password: <comment>(Re-enter your password)</comment>
518</pre>
519
520<p>
521To create a user account, we first enter their credentials, followed by
522its password. We use <c>useradd</c> and <c>passwd</c> for these tasks.
523In the next example, we create a user called &quot;john&quot;.
524</p>
525
526<pre caption="Creating a user account">
527# <i>useradd -m -G users john</i>
528# <i>passwd john</i>
529New password: <comment>(Enter john's password)</comment>
530Re-enter password: <comment>(Re-enter john's password)</comment>
531</pre>
532
533<p>
534You can change your user id from root to the newly created user by using
535<c>su</c>:
536</p>
537
538<pre caption="Changing user id">
539# <i>su - john</i>
540</pre>
541
542</body>
543</subsection>
544<subsection>
545<title>Optional: Viewing Documentation while Installing</title>
546<body>
547
548<p>
549If you want to view the Gentoo Handbook (either from-CD or online) during the
550installation, make sure you have created a user account (see <uri
551link="#useraccounts">Optional: User Accounts</uri>). Then press <c>Alt-F2</c> to
552go to a new terminal and log in.
553</p>
554
555<p>
556If you want to view the documentation on the CD you can immediately run
557<c>lynx</c> to read it:
558</p>
559
560<pre caption="Viewing the on-CD documentation">
561# <i>lynx /mnt/cdrom/docs/html/index.html</i>
562</pre>
563
564<p>
565However, it is preferred that you use the online Gentoo Handbook as it will be
566more recent than the one provided on the CD. You can view it using <c>lynx</c>
567as well, but only after having completed the <e>Configuring your Network</e>
568chapter (otherwise you won't be able to go on the Internet to view the
569document):
570</p>
571
572<pre caption="Viewing the Online Documentation">
573# <i>lynx http://www.gentoo.org/doc/en/handbook/handbook-alpha.xml</i>
574</pre>
575
576<p>
577You can go back to your original terminal by pressing <c>Alt-F1</c>.
578</p>
579
580</body>
581</subsection>
582<subsection>
583<title>Optional: Starting the SSH Daemon</title>
584<body>
585
586<p>
587If you want to allow other users to access your computer during the
588Gentoo installation (perhaps because those users are going to help you
589install Gentoo, or even do it for you), you need to create a user
590account for them and perhaps even provide them with your root password
591(<e>only</e> do that <e>if</e> you <b>fully trust</b> that user).
592</p>
593
594<p>
595To fire up the SSH daemon, execute the following command:
596</p>
597
598<pre caption="Starting the SSH daemon">
599# <i>/etc/init.d/sshd start</i>
600</pre>
601
602<p>
603To be able to use sshd, you first need to set up your networking. Continue with
604the chapter on <uri link="?part=1&amp;chap=3">Configuring your Network</uri>.
605</p>
606
607</body>
608</subsection>
609</section> 360</section>
610</sections> 361</sections>

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