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Bug #377755 - Inform users about the 20-second timeout during CD boot. Currently only for x86/amd64 in docs, other arches please verify and report on the bug!

1 <?xml version='1.0' encoding='UTF-8'?>
2 <!DOCTYPE sections SYSTEM "/dtd/book.dtd">
3
4 <!-- The content of this document is licensed under the CC-BY-SA license -->
5 <!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
6
7 <!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-x86+amd64-medium.xml,v 1.19 2010/07/19 01:50:06 nightmorph Exp $ -->
8
9 <sections>
10
11 <abstract>
12 You can install Gentoo in many ways. This chapter explains how to install
13 Gentoo using the minimal Installation CD.
14 </abstract>
15
16 <version>8</version>
17 <date>2011-08-23</date>
18
19 <section>
20 <title>Hardware Requirements</title>
21 <subsection>
22 <title>Introduction</title>
23 <body>
24
25 <p>
26 Before we start, we first list what hardware requirements you need to
27 successfully install Gentoo on your box.
28 </p>
29
30 </body>
31 </subsection>
32 <subsection>
33 <title>Hardware Requirements</title>
34 <body test="func:keyval('arch')='x86'">
35
36 <table>
37 <tr>
38 <ti/>
39 <th>Minimal CD</th>
40 <th>LiveCD</th>
41 </tr>
42 <tr>
43 <th>CPU</th>
44 <ti>i486 or later</ti>
45 <ti><b>i686</b> or later</ti>
46 </tr>
47 <tr>
48 <th>Memory</th>
49 <ti>64 MB</ti>
50 <ti>256 MB</ti>
51 </tr>
52 <tr>
53 <th>Diskspace</th>
54 <ti colspan="2">1.5 GB (excluding swap space)</ti>
55 </tr>
56 <tr>
57 <th>Swap space</th>
58 <ti colspan="2">At least 256 MB</ti>
59 </tr>
60 </table>
61
62 </body>
63 <body test="func:keyval('arch')='AMD64'">
64
65 <table>
66 <tr>
67 <ti/>
68 <th>Minimal CD</th>
69 <th>LiveCD</th>
70 </tr>
71 <tr>
72 <th>CPU</th>
73 <ti colspan="2">
74 Any AMD64 CPU or <uri
75 link="http://en.wikipedia.org/wiki/EMT64#Intel_64">EM64T CPU</uri> (Core 2
76 Duo &amp; Quad processors are EM64T)
77 </ti>
78 </tr>
79 <tr>
80 <th>Memory</th>
81 <ti>64 MB</ti>
82 <ti>256 MB</ti>
83 </tr>
84 <tr>
85 <th>Diskspace</th>
86 <ti colspan="2">1.5 GB (excluding swap space)</ti>
87 </tr>
88 <tr>
89 <th>Swap space</th>
90 <ti colspan="2">At least 256 MB</ti>
91 </tr>
92 </table>
93
94 <p>
95 You should check the <uri link="/proj/en/base/amd64/">Gentoo
96 AMD64 Project Page</uri> before proceeding.
97 </p>
98
99 </body>
100 </subsection>
101 </section>
102 <!-- This part can be propagated to the other architectures as well. -->
103 <!-- START -->
104 <section>
105 <title>The Gentoo Installation CDs</title>
106 <subsection>
107 <title>Introduction</title>
108 <body>
109
110 <p>
111 The <e>Gentoo Installation CDs</e> are bootable CDs which contain a
112 self-sustained Gentoo environment. They allow you to boot Linux from the CD.
113 During the boot process your hardware is detected and the appropriate drivers
114 are loaded. They are maintained by Gentoo developers.
115 </p>
116
117 <p>
118 All Installation CDs allow you to boot, set up networking, initialize your
119 partitions and start installing Gentoo from the Internet.
120 </p>
121
122 <!--
123 <impo>
124 If you wish to install Gentoo without a working Internet connection, or would
125 like to use one of the provided installers, please use the installation
126 instructions described in the <uri link="2008.0/">Gentoo 2008.0
127 Handbooks</uri>.
128 </impo>
129 -->
130 <!--
131 <p>
132 The Installation CDs that we currently provide are:
133 </p>
134
135 <ul>
136 <li>
137 The Gentoo <e>Minimal</e> Installation CD, a small, no-nonsense, bootable
138 CD which sole purpose is to boot the system, prepare the networking and
139 continue with the Gentoo installation.
140 </li>
141 <li>
142 The Gentoo <e>Installer LiveCD</e> contains everything you need to install
143 Gentoo. It provides a graphical environment, a graphical as well as console
144 based installer which automatically carries out the installation for you,
145 and of course, the installation instructions for your architecture.
146 </li>
147 </ul>
148
149 <p>
150 To help you decide which Installation CD you need, we have written down the
151 major advantages and disadvantages of each Installation CD.
152 </p>
153 -->
154 </body>
155 </subsection>
156 <subsection>
157 <title>Gentoo Minimal Installation CD</title>
158 <body>
159
160 <p>
161 The Minimal Installation CD is called <c><keyval id="min-cd-name"/></c> and
162 takes up only <keyval id="min-cd-size"/> MB of diskspace. You can use this
163 Installation CD to install Gentoo, but <e>only</e> with a working Internet
164 connection.
165 </p>
166 <!--
167 <table>
168 <tr>
169 <th>Minimal Installation CD</th>
170 <th>Pros and Cons</th>
171 </tr>
172 <tr>
173 <th>+</th>
174 <ti>Smallest download</ti>
175 </tr>
176 <tr>
177 <th>-</th>
178 <ti>
179 Contains no stage3 tarball, no Portage snapshot, no prebuilt packages and
180 is therefore not suitable for networkless installation
181 </ti>
182 </tr>
183 </table>
184 -->
185 </body>
186 </subsection>
187 <!--
188 <subsection>
189 <title>Gentoo Installer LiveCD</title>
190 <body>
191
192 <p>
193 The Installer LiveCD is called <c><keyval id="live-cd-name"/></c> and takes up
194 <keyval id="live-cd-size"/> MB. You can use this Installation CD to install
195 Gentoo, and you can even use it to install Gentoo without a working internet
196 connection.
197 </p>
198
199 <table>
200 <tr>
201 <th>Installer LiveCD</th>
202 <th>Pros and Cons</th>
203 </tr>
204 <tr>
205 <th>+</th>
206 <ti>
207 Contains everything you need. You can even install without a network
208 connection.
209 </ti>
210 </tr>
211 <tr>
212 <th>-</th>
213 <ti>Huge download</ti>
214 </tr>
215 </table>
216
217 </body>
218 </subsection>
219 -->
220 <subsection>
221 <title>The Stage3 Tarball</title>
222 <body>
223
224 <p>
225 A stage3 tarball is an archive containing a minimal Gentoo environment,
226 suitable to continue the Gentoo installation using the instructions in this
227 manual. Previously, the Gentoo Handbook described the installation using one of
228 three stage tarballs. While Gentoo still offers stage1 and stage2 tarballs, the
229 official installation method uses the stage3 tarball. If you are interested in
230 performing a Gentoo installation using a stage1 or stage2 tarball, please read
231 the Gentoo FAQ on <uri link="/doc/en/faq.xml#stage12">How do I Install Gentoo
232 Using a Stage1 or Stage2 Tarball?</uri>
233 </p>
234
235 <p>
236 Stage3 tarballs can be downloaded from <path><keyval
237 id="release-dir"/>current-stage3/</path> on any of the <uri
238 link="/main/en/mirrors.xml">Official Gentoo Mirrors</uri> and are not provided
239 on the LiveCD.
240 </p>
241
242 </body>
243 </subsection>
244 </section>
245 <!-- STOP -->
246 <section>
247 <title>Download, Burn and Boot a Gentoo Installation CD</title>
248 <subsection>
249 <title>Downloading and Burning the Installation CDs</title>
250 <body>
251
252 <p>
253 You have chosen to use a Gentoo Installation CD. We'll first start by
254 downloading and burning the chosen Installation CD. We previously discussed
255 the several available Installation CDs, but where can you find them?
256 </p>
257
258 <p>
259 You can download any of the Installation CDs from one of our <uri
260 link="/main/en/mirrors.xml">mirrors</uri>. The Installation CDs are located in
261 the <path><keyval id="release-dir"/>current-iso/</path> directory.
262 </p>
263
264 <p>
265 Inside that directory you'll find ISO files. Those are full CD images which you
266 can write on a CD-R.
267 </p>
268
269 <p>
270 In case you wonder if your downloaded file is corrupted or not, you can check
271 its MD5 checksum and compare it with the MD5 checksum we provide (such as
272 <path><keyval id="min-cd-name"/>.DIGESTS</path>). You can check the MD5
273 checksum with the <c>md5sum</c> tool under Linux/Unix or <uri
274 link="http://www.etree.org/md5com.html">md5sum</uri> for Windows.
275 </p>
276
277 <p>
278 Another way to check the validity of the downloaded file is to use GnuPG to
279 verify the cryptographic signature that we provide (the file ending with
280 <path>.asc</path>). Download the signature file and obtain the public key:
281 </p>
282
283 <pre caption="Obtaining the public key">
284 $ <i>gpg --keyserver subkeys.pgp.net --recv-keys 2D182910</i>
285 </pre>
286
287 <p>
288 Now verify the signature:
289 </p>
290
291 <pre caption="Verify the files">
292 <comment>(Verify the cryptographic signature)</comment>
293 $ <i>gpg --verify &lt;downloaded iso.DIGESTS.asc&gt;</i>
294 <comment>(Verify the checksum)</comment>
295 $ <i>sha1sum -c &lt;downloaded iso.DIGESTS.asc&gt;</i>
296 </pre>
297
298 <p>
299 To burn the downloaded ISO(s), you have to select raw-burning. How you
300 do this is highly program-dependent. We will discuss <c>cdrecord</c> and
301 <c>K3B</c> here; more information can be found in our <uri
302 link="/doc/en/faq.xml#isoburning">Gentoo FAQ</uri>.
303 </p>
304
305 <ul>
306 <li>
307 With cdrecord, you simply type <c>cdrecord dev=/dev/hdc &lt;downloaded iso
308 file&gt;</c> (replace <path>/dev/hdc</path> with your CD-RW drive's
309 device path).
310 </li>
311 <li>
312 With K3B, select <c>Tools</c> &gt; <c>Burn CD Image</c>. Then you can locate
313 your ISO file within the 'Image to Burn' area. Finally click <c>Start</c>.
314 </li>
315 </ul>
316
317 </body>
318 </subsection>
319 <subsection>
320 <title>Booting the Installation CD</title>
321 <body>
322
323 <p>
324 Once you have burnt your installation CD, it is time to boot it.
325 Remove all CDs from your CD drives, reboot your system and enter the BIOS.
326 This is usually done by hitting DEL, F1 or ESC, depending on your BIOS. Inside
327 the BIOS, change the boot order so that the CD-ROM is tried before the hard
328 disk. This is often found under "CMOS Setup". If you don't do this, your system
329 will just reboot from the hard disk, ignoring the CD-ROM.
330 </p>
331
332 <p>
333 Now place the installation CD in the CD-ROM drive and reboot. You should see a
334 boot prompt. At this screen, you can hit Enter to begin the boot process with
335 the default boot options, or boot the Installation CD with custom boot options
336 by specifying a kernel followed by boot options and then hitting Enter.
337 </p>
338
339 <p>
340 When the boot prompt is shown, you get the option of displaying the available
341 kernels (<c>F1</c>) and boot options (<c>F2</c>). If you make no selection
342 within 20 seconds (either displaying information or using a kernel) then the
343 LiveCD will fall back to booting from disk. This allows installations to reboot
344 and try out their installed environment without the need to remove the CD from
345 the tray (something well appreciated for remote installations).
346 </p>
347
348 <p>
349 Now we mentioned specifying a kernel. On our Installation CDs, we provide
350 several kernels. The default one is <c>gentoo</c>. Other kernels are for
351 specific hardware needs and the <c>-nofb</c> variants which disable
352 framebuffer.
353 </p>
354
355 <p>
356 Below you'll find a short overview on the available kernels:
357 </p>
358
359 <table>
360 <tr>
361 <th>Kernel</th>
362 <th>Description</th>
363 </tr>
364 <tr test="func:keyval('arch')='x86'">
365 <ti>gentoo</ti>
366 <ti>Default 2.6 kernel with support for multiple CPUs</ti>
367 </tr>
368 <tr test="func:keyval('arch')='AMD64'">
369 <ti>gentoo</ti>
370 <ti>
371 Default kernel with support for K8 CPUS (including NUMA support) and EM64T
372 CPUs
373 </ti>
374 </tr>
375 <tr>
376 <ti>gentoo-nofb</ti>
377 <ti>Same as <c>gentoo</c> but without framebuffer support</ti>
378 </tr>
379 <tr>
380 <ti>memtest86</ti>
381 <ti>Test your local RAM for errors</ti>
382 </tr>
383 </table>
384
385 <p>
386 You can also provide kernel options. They represent optional settings you can
387 (de)activate at will.
388 </p>
389
390 </body>
391
392 <body>
393 <include href="hb-install-kernelparams.xml"/>
394 </body>
395
396 <body>
397
398 <note>
399 The CD will check for "no*" options before "do*" options, so that you can
400 override any option in the exact order you specify.
401 </note>
402
403 <p>
404 Now boot your CD, select a kernel (if you are not happy with the default
405 <c>gentoo</c> kernel) and boot options. As an example, we show you how
406 to boot the <c>gentoo</c> kernel, with <c>dopcmcia</c> as kernel
407 parameters:
408 </p>
409
410 <pre caption="Booting an Installation CD">
411 boot: <i>gentoo dopcmcia</i>
412 </pre>
413
414 <p>
415 You will then be greeted with a boot screen and progress bar. If you are
416 installing Gentoo on a system with a non-US keyboard, make sure you immediately
417 press Alt-F1 to switch to verbose mode and follow the prompt. If no selection
418 is made in 10 seconds the default (US keyboard) will be accepted and the boot
419 process will continue. Once the boot process completes, you will be
420 automatically logged in to the "Live" Gentoo Linux as "root", the super user.
421 You should have a root ("#") prompt on the current console and can also switch
422 to other consoles by pressing Alt-F2, Alt-F3 and Alt-F4. Get back to the one
423 you started on by pressing Alt-F1.
424 </p>
425
426 <p>
427 Now continue with <uri link="#hardware">Extra Hardware Configuration</uri>.
428 </p>
429
430 </body>
431 </subsection>
432
433 <subsection>
434 <include href="hb-install-bootconfig.xml"/>
435 </subsection>
436
437 </section>
438 </sections>

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