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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/2.5 --> 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 1.53 2011/01/23 07:46:08 nightmorph Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-alpha-medium.xml,v 1.63 2013/12/17 10:08:59 swift Exp $ -->
8 8
9<sections> 9<sections>
10 10
11<version>11</version> 11<version>20</version>
12<date>2011-01-22</date> 12<date>2013-08-15</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>
108<title>Gentoo Minimal Installation CD</title> 108<title>Gentoo Minimal Installation CD</title>
109<body> 109<body>
110 110
111<p> 111<p>
112The Minimal Installation CD is called <c><keyval id="min-cd-name"/></c> and 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 113takes up around <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 114Installation CD to install Gentoo, but <e>only</e> with a working Internet
115connection. 115connection.
116</p> 116</p>
117<!-- 117<!--
118<table> 118<table>
176<p> 176<p>
177You might find a Package CD on one of our mirrors. This CD is not an 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 178Installation CD but an additional resource that can be exploited during a
179networkless installation. It contains prebuilt packages (also known as the GRP 179networkless installation. It contains prebuilt packages (also known as the GRP
180set) that allow you to easily and quickly install additional applications 180set) that allow you to easily and quickly install additional applications
181(such as OpenOffice.org, KDE, GNOME, ...) immediately after the networkless 181(such as LibreOffice.org, KDE, GNOME, ...) immediately after the networkless
182Gentoo installation. 182Gentoo installation.
183</p> 183</p>
184 184
185<p> 185<p>
186If you intend to use the Packages CD to quickly install additional software, 186If you intend to use the Packages CD to quickly install additional software,
238can write on a CD-R. 238can write on a CD-R.
239</p> 239</p>
240 240
241<p> 241<p>
242In case you wonder if your downloaded file is corrupted or not, you can check 242In case you wonder if your downloaded file is corrupted or not, you can check
243its MD5 checksum and compare it with the MD5 checksum we provide (such as 243its SHA-2 checksum and compare it with the SHA-2 checksum we provide (such as
244<path><keyval id="min-cd-name"/>.DIGESTS</path>). You can check the MD5 checksum 244<path><keyval id="min-cd-name"/>.DIGESTS</path>). You can check the SHA-2 checksum
245with the <c>md5sum</c> tool under Linux/Unix or <uri 245with the <c>sha512sum</c> tool under Linux/Unix or <uri
246link="http://www.etree.org/md5com.html">md5sum</uri> for Windows. 246link="http://www.sinf.gr/en/hashcalc.html">Checksums calculator</uri> for Windows.
247</p>
248
249<pre caption="Verifying the SHA-2 checksum">
250$ <i>sha512sum -c &lt;downloaded iso.DIGESTS&gt;</i>
247</p> 251</pre>
252
253<note>
254If you get the message that no properly formatted SHA checksum was found, take a
255look at the DIGESTS file yourself to see what the supported checksums are.
256</note>
248 257
249<p> 258<p>
250Another way to check the validity of the downloaded file is to use GnuPG to 259Another 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 260verify the cryptographic signature that we provide (the file ending with
252<path>.asc</path>). Download the signature file and obtain the public key: 261<path>.asc</path>). Download the signature file and obtain the public keys whose
262key ids can be found on the <uri link="/proj/en/releng/index.xml">release
263engineering project site</uri>.
253</p> 264</p>
254 265
255<pre caption="Obtaining the public key"> 266<pre caption="Obtaining the public key">
267<comment>(... Substitute the key ids with those mentioned on the release engineering site ...)</comment>
256$ <i>gpg --keyserver subkeys.pgp.net --recv-keys 2D182910</i> 268$ <i>gpg --keyserver subkeys.pgp.net --recv-keys 96D8BF6D 2D182910 17072058</i>
257</pre> 269</pre>
258 270
259<p> 271<p>
260Now verify the signature: 272Now verify the signature:
261</p> 273</p>
262 274
263<pre caption="Verify the files"> 275<pre caption="Verify the files">
264<comment>(Verify the cryptographic signature)</comment>
265$ <i>gpg --verify &lt;downloaded iso.DIGESTS.asc&gt;</i> 276$ <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> 277$ <i>sha512sum -c &lt;downloaded iso.DIGESTS.asc&gt;</i>
268</pre> 278</pre>
269 279
270<p> 280<p>
271To burn the downloaded ISO(s), you have to select raw-burning. How you 281To burn the downloaded ISO(s), you have to select raw-burning. How you
272do this is highly program-dependent. We will discuss <c>cdrecord</c> and 282do this is highly program-dependent. We will discuss <c>cdrecord</c> and
274link="/doc/en/faq.xml#isoburning">Gentoo FAQ</uri>. 284link="/doc/en/faq.xml#isoburning">Gentoo FAQ</uri>.
275</p> 285</p>
276 286
277<ul> 287<ul>
278 <li> 288 <li>
279 With cdrecord, you simply type <c>cdrecord dev=/dev/hdc &lt;downloaded iso 289 With cdrecord, you simply type <c>cdrecord dev=/dev/sr0 &lt;downloaded iso
280 file&gt;</c> (replace <path>/dev/hdc</path> with your CD-RW drive's 290 file&gt;</c> (replace <path>/dev/sr0</path> with your CD-RW drive's
281 device path). 291 device path).
282 </li> 292 </li>
283 <li> 293 <li>
284 With K3B, select <c>Tools</c> &gt; <c>Burn CD Image</c>. Then you can locate 294 With K3B, select <c>Tools</c> &gt; <c>Burn CD Image</c>. Then you can locate
285 your ISO file within the 'Image to Burn' area. Finally click <c>Start</c>. 295 your ISO file within the 'Image to Burn' area. Finally click <c>Start</c>.
328dkb0.0.1.4.0 DKB0 TOSHIBA CDROM 338dkb0.0.1.4.0 DKB0 TOSHIBA CDROM
329<comment>(...)</comment> 339<comment>(...)</comment>
330<comment>(Substitute dkb0 with your CD-ROM drive device)</comment> 340<comment>(Substitute dkb0 with your CD-ROM drive device)</comment>
331&gt;&gt;&gt; <i>boot dkb0 -flags 0</i> 341&gt;&gt;&gt; <i>boot dkb0 -flags 0</i>
332<comment>(This flag will use serial port ttyS0 as the default console)</comment> 342<comment>(This flag will use serial port ttyS0 as the default console)</comment>
333&gt;&gt;&gt; <i>boot dkb0 -flags 1</i> 343&gt;&gt;&gt; <i>boot dkb0 -flags 2</i>
334</pre> 344</pre>
335 345
336<pre caption="Booting a CD-ROM using MILO"> 346<pre caption="Booting a CD-ROM using MILO">
337<comment>(Substitute sdb with your CD-ROM drive device)</comment> 347<comment>(Substitute sdb with your CD-ROM drive device)</comment>
338MILO&gt; <i>boot sdb:/boot/gentoolegacy initrd=/boot/gentoolegacy.igz root=/dev/ram0 init=/linuxrc looptype=squashfs loop=/image.squashfs cdroot</i> 348MILO&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> 349<comment>(Using serial port ttyS0 as the default console)</comment>
340MILO&gt; <i>boot sdb:/boot/gentoolegacy initrd=/boot/gentoolegacy.igz root=/dev/ram0 init=/linuxrc looptype=squashfs loop=/image.squashfs console=ttyS0 cdroot</i> 350MILO&gt; <i>boot sdb:/boot/gentoo initrd=/boot/gentoo.igz root=/dev/ram0 init=/linuxrc looptype=squashfs loop=/image.squashfs console=ttyS0 cdroot</i>
341</pre> 351</pre>
342 352
343<p> 353<p>
344You should have a root ("#") prompt on the current console and can also switch 354You should have a root ("#") prompt on the current console and can also switch
345to other consoles by pressing Alt-F2, Alt-F3 and Alt-F4. Get back to the one you 355to other consoles by pressing Alt-F2, Alt-F3 and Alt-F4. Get back to the one you

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