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1 swift 1.1 <?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/1.0 -->
6    
7 neysx 1.31 <!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-ppc-medium.xml,v 1.30 2004/11/02 11:44:39 swift Exp $ -->
8 swift 1.1
9     <sections>
10     <section>
11     <title>Hardware Requirements</title>
12     <subsection>
13     <title>Introduction</title>
14     <body>
15    
16     <p>
17     Before we start, we first list what hardware requirements you need to
18     successfully install Gentoo on your box. This of course depends on your
19     architecture.
20     </p>
21    
22     </body>
23     </subsection>
24     <subsection>
25     <title>The PPC Architecture</title>
26     <body>
27    
28     <p>
29     Check the following requirements before you
30     continue with the Gentoo installation:
31     </p>
32    
33     <ul>
34     <li>
35 dertobi123 1.17 You need at least 2 GB of free disk space
36 swift 1.1 </li>
37     <li>
38 dertobi123 1.17 If you do not use prebuilt packages, you need at least 300 MB of memory (RAM +
39 sejo 1.24 swap), if you do use prebuilt packages you need at least 64 MB of memory to boot the system.
40 swift 1.1 </li>
41     <li>
42 dertobi123 1.17 For the <e>PowerPC architecture</e>, you can install Gentoo/PPC on NewWorld machines
43 swift 1.1 having a Power or PowerPC microprocessor, including but not limited to G3, G4
44 dertobi123 1.17 or G5 powered Apple computers such as the iMac, the eMac, the iBook, the PowerBook,
45 pylon 1.21 Xserve, PowerMac, and bPlan's Pegasos II. We also provide limited
46 dertobi123 1.17 support for OldWorld systems, IBM (RS/6000, iSeries, pSeries, ...) and Amiga
47 swift 1.7 systems. Be sure to read up on the <uri link="/doc/en/gentoo-ppc-faq.xml">Gentoo
48 dertobi123 1.17 PPC FAQ</uri> before you begin.
49 swift 1.1 </li>
50     </ul>
51    
52     </body>
53     </subsection>
54     </section>
55     <section>
56     <title>Make your Choice</title>
57     <subsection>
58     <title>Introduction</title>
59     <body>
60    
61     <p>
62     Still interested in trying out Gentoo? Well, then it is now time to
63     choose the installation medium you want to use. Yes, you have the
64     choice, no, they are not all equal, and yes, the result is always the same: a
65     Gentoo base system.
66     </p>
67    
68     <p>
69     The installation media we will describe are:
70     </p>
71    
72     <ul>
73     <li>Gentoo's Minimal LiveCD</li>
74     <li>Gentoo's Universal LiveCD</li>
75     </ul>
76    
77     <p>
78     Every single media has its advantages and disadvantages. We will list
79     the pros and cons of every medium so you have all the information to
80     make a justified decision. But before we continue, let's explain our
81     three-stage installation.
82     </p>
83    
84     </body>
85     </subsection>
86     <subsection>
87     <title>The Three Stages</title>
88     <body>
89    
90     <p>
91     Gentoo Linux can be installed using one of three <e>stage</e> tarball files.
92     The one you choose depends on how much of the system you want to compile
93     yourself. The <e>stage1</e> tarball is used when you want to bootstrap and
94     build the entire system from scratch. The <e>stage2</e> tarball is used for
95     building the entire system from a bootstrapped &quot;semi-compiled&quot; state.
96     The <e>stage3</e> tarball already contains a basic Gentoo Linux system that has
97     been built for you. As we will explain later, you can also install
98     Gentoo without compiling anything (except your kernel and some optional
99     packages). If you want this, you have to use a <e>stage3</e> tarball.
100     </p>
101    
102     <p>
103     Now what stage do you have to choose?
104     </p>
105    
106     <p>
107     Starting from a <e>stage1</e> allows you to have total control over the
108     optimization settings and optional build-time functionality that is
109     initially enabled on your system. This makes <e>stage1</e> installs good for
110     power users who know what they are doing. It is also a great
111     installation method for those who would like to know more about the
112     inner workings of Gentoo Linux.
113     </p>
114    
115 swift 1.10 <p>
116     A <e>stage1</e> installation can only be performed when you have a working
117     Internet connection.
118     </p>
119    
120 swift 1.1 <table>
121     <tr>
122     <th>Stage1</th>
123     <th>Pros and Cons</th>
124     </tr>
125     <tr>
126     <th>+</th>
127     <ti>
128     Allows you to have total control over the optimization settings and optional
129     build-time functionality that is initially enabled on your system
130     </ti>
131     </tr>
132     <tr>
133     <th>+</th>
134     <ti>Suitable for powerusers that know what they are doing</ti>
135     </tr>
136     <tr>
137     <th>+</th>
138     <ti>Allows you to learn more about the inner workings of Gentoo</ti>
139     </tr>
140     <tr>
141     <th>-</th>
142     <ti>Takes a long time to finish the installation</ti>
143     </tr>
144     <tr>
145     <th>-</th>
146     <ti>
147     If you don't intend to tweak the settings, it is probably a waste of time
148     </ti>
149     </tr>
150 swift 1.10 <tr>
151     <th>-</th>
152     <ti>
153     Not suitable for networkless installations
154     </ti>
155     </tr>
156 swift 1.1 </table>
157    
158     <p>
159     <e>Stage2</e> installs allow you to skip the bootstrap process and doing this
160     is fine if you are happy with the optimization settings that we chose
161     for your particular <e>stage2</e> tarball.
162     </p>
163    
164 swift 1.10 <p>
165     A <e>stage2</e> installation can only be performed when you have a working
166     Internet connection.
167     </p>
168    
169 swift 1.1 <table>
170     <tr>
171     <th>Stage2</th>
172     <th>Pros and Cons</th>
173     </tr>
174     <tr>
175     <th>+</th>
176     <ti>You don't need to bootstrap</ti>
177     </tr>
178     <tr>
179     <th>+</th>
180     <ti>Faster than starting with stage1</ti>
181     </tr>
182     <tr>
183     <th>+</th>
184     <ti>You can still tweak your settings</ti>
185     </tr>
186     <tr>
187     <th>-</th>
188     <ti>You cannot tweak as much as with a stage1</ti>
189     </tr>
190     <tr>
191     <th>-</th>
192     <ti>It's not the fastest way to install Gentoo</ti>
193     </tr>
194     <tr>
195     <th>-</th>
196     <ti>You have to accept the optimizations we chose for the bootstrap</ti>
197     </tr>
198 swift 1.10 <tr>
199     <th>-</th>
200     <ti>
201     Not suitable for networkless installations
202     </ti>
203     </tr>
204 swift 1.1 </table>
205    
206     <p>
207     Choosing to go with a <e>stage3</e> allows for the fastest install of Gentoo
208     Linux, but also means that your base system will have the optimization
209     settings that we chose for you (which to be honest, are good settings
210     and were carefully chosen to enhance performance while maintaining
211     stability). <e>stage3</e> is also required if you want to install Gentoo using
212 swift 1.9 prebuilt packages or without a network connection.
213 swift 1.1 </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 swift 1.10 <th>+</th>
226     <ti>Suitable for networkless installations</ti>
227     </tr>
228     <tr>
229 swift 1.1 <th>-</th>
230     <ti>You cannot tweak the base system - it's built already</ti>
231     </tr>
232     <tr>
233     <th>-</th>
234     <ti>You cannot brag about having used stage1 or stage2</ti>
235     </tr>
236     </table>
237    
238     <p>
239     Write down (or remember) what stage you want to use. You need this later when
240     you decide what LiveCD (or other installation medium) you want to use. You might
241     be interested to know that, if you decide to use different optimization settings
242     after having installed Gentoo, you will be able to recompile your entire system
243     with the new optimization settings.
244     </p>
245    
246     <p>
247     Now take a look at the available installation media.
248     </p>
249    
250     </body>
251     </subsection>
252     <subsection>
253     <title>Gentoo LiveCDs</title>
254     <body>
255    
256 pylon 1.21 <note>
257     The Gentoo/PPC 2004.2 release is not official, so you will not find them on the
258 pylon 1.25 mirrors. All of our self-organised mirrors are currently down. The only chance
259     you can get the LiveCDs is via <uri
260     link="http://torrents.gentoo.org/torrents/">BitTorrent</uri>.
261 pylon 1.21 </note>
262    
263     <note>
264     It is known that the Pegasos II will not boot the 2004.2 LiveCD. Please use the
265     2004.1 LiveCD.
266     </note>
267    
268 swift 1.1 <p>
269     The <e>Gentoo LiveCDs</e> are bootable CDs which contain a
270     self-sustained Gentoo environment. They allow you to boot Linux from the CD.
271     During the boot process your hardware is detected and the appropriate drivers
272     are loaded. They are maintained by Gentoo developers.
273     </p>
274    
275     <p>
276 swift 1.28 All LiveCDs allow you to boot, set up networking, initialize your
277 swift 1.1 partitions and start installing Gentoo from the Internet. However, some
278     LiveCDs also contain all necessary source code so you are able to install
279     Gentoo without a working network configuration.
280     </p>
281    
282     <p>
283     Now what do these LiveCDs contain?
284     </p>
285    
286     </body>
287     </subsection>
288     <subsection>
289     <title>Gentoo's Minimal LiveCD</title>
290     <body>
291    
292     <p>
293     This is a small, no-nonsense, bootable CD which sole purpose is to boot the
294     system, prepare the networking and continue with the Gentoo installation. It
295     does not contain any stages (or, in some cases, a single stage1 file),
296     source code or precompiled packages. For example the ppc variant of this
297 dertobi123 1.17 LiveCD can be found in the <path>livecd</path> subdirectory and is called
298     <c>install-ppc-minimal-2004.2.iso</c>.
299 swift 1.1 </p>
300    
301     <table>
302     <tr>
303     <th>Minimal LiveCD</th>
304     <th>Pros and Cons</th>
305     </tr>
306     <tr>
307     <th>+</th>
308     <ti>Smallest download</ti>
309     </tr>
310     <tr>
311     <th>+</th>
312     <ti>Suitable for a complete architecture</ti>
313     </tr>
314     <tr>
315     <th>+</th>
316     <ti>
317     You can do a stage1, stage2 or stage3 by getting the stage tarball off the
318     net
319     </ti>
320     </tr>
321     <tr>
322     <th>-</th>
323     <ti>
324 swift 1.27 Contains no stages, no Portage snapshot, no GRP packages and therefore not
325 swift 1.1 suitable for networkless installation
326     </ti>
327     </tr>
328     </table>
329    
330     </body>
331     </subsection>
332     <subsection>
333     <title>Gentoo's Universal LiveCD</title>
334     <body>
335    
336     <p>
337     Gentoo's Universal LiveCD is a bootable CD suitable to install Gentoo without
338     networking. It contains a stage1 and several stage3 tarballs (optimized for the
339     individual subarchitectures). For example the ppc variant of this CD is called
340 dertobi123 1.17 <c>install-ppc-universal-2004.2.iso</c> and can be found in the
341     <path>livecd</path> subdirectory.
342 swift 1.1 </p>
343    
344     <p>
345 swift 1.7 If you take a closer look on our mirrors, you will see
346     that we provide <e>Gentoo Package CDs</e>. This CD (which isn't
347 swift 1.1 bootable) only contains precompiled packages and can be used to install software
348     after a succesfull Gentoo Installation. To install Gentoo, you only
349     need the Universal LiveCD, but if you want OpenOffice.org, Mozilla, KDE, GNOME
350     etc. without having to compile every single one of them, you need the Packages
351     CD too. For example the G4 (a subarchitecture of ppc) Packages CD is
352 dertobi123 1.17 called <c>packages-g4-2004.2.iso</c> and can be found in the appropriate
353 swift 1.1 subdirectory (<path>g4/</path>).
354     </p>
355    
356 swift 1.11 <p>
357     You only need the Packages CD if you want to perform a stage3 with GRP
358     installation.
359     </p>
360    
361 swift 1.1 <table>
362     <tr>
363     <th>Universal LiveCD with Packages CD</th>
364     <th>Pros and Cons</th>
365     </tr>
366     <tr>
367     <th>+</th>
368     <ti>Packages CD is optimized to your architecture and subarchitecture</ti>
369     </tr>
370     <tr>
371     <th>+</th>
372     <ti>
373     Packages CD provides precompiled packages for fast Gentoo installations
374     </ti>
375     </tr>
376     <tr>
377     <th>+</th>
378     <ti>
379     Contains everything you need. You can even install without a network
380     connection.
381     </ti>
382     </tr>
383     <tr>
384     <th>-</th>
385     <ti>Huge download</ti>
386     </tr>
387     </table>
388    
389     </body>
390     </subsection>
391     </section>
392     <section>
393     <title>Download, Burn and Boot a Gentoo LiveCD</title>
394     <subsection>
395     <title>Downloading and Burning the LiveCDs</title>
396     <body>
397    
398     <p>
399     You have chosen to use a Gentoo LiveCD (if not, then you are reading the
400     wrong section). We'll first start by downloading and burning the chosen
401     LiveCD. We previously discussed the several available LiveCDs, but where can you
402     find them?
403     </p>
404    
405     <p>
406     Visit one of our <uri
407     link="/main/en/mirrors.xml">mirrors</uri> and go to
408 dertobi123 1.17 <path>releases/ppc/2004.2/livecd</path>, which is
409 swift 1.1 the path where the LiveCD(s) of your choice are located. Inside that
410     directory you'll find so-called ISO-files. Those are full CD images
411     which you can write on a CD-R.
412     </p>
413    
414     <p>
415     In case you wonder if your downloaded file is corrupted or not, you can
416     check its MD5 checksum and compare it with the MD5 checksum we provide (such as
417 dertobi123 1.17 <path>install-ppc-minimal-2004.2.iso.md5</path>). You can check the MD5 checksum
418 swift 1.1 with the <c>md5sum</c> tool under Linux/Unix or <uri
419 neysx 1.16 link="http://www.etree.org/md5com.html">md5sum</uri> for Windows.
420 swift 1.1 </p>
421    
422     <p>
423 dertobi123 1.17 As long as Mac OS X does not support <c>md5sum</c> you have to use the md5
424     capability of <c>openssl</c>. Therefore type in Terminal.app:
425 swift 1.12 </p>
426    
427 dertobi123 1.18 <pre caption="md5sum with the help of openssl">
428 dertobi123 1.17 $ <i>openssl md5 /path/to/iso</i>
429     <comment>This could take some time depending of the size of the ISO and your CPU</comment>
430 swift 1.12 </pre>
431    
432     <p>
433 dertobi123 1.17 Now compare this output with the appropriate file found on the server where you
434     downloaded the ISO (the file will end with .md5). If it is the same, the ISO
435     image downloaded correctly. Be sure you have not mounted it (e.g. with Disk
436     Copy) yet!
437 swift 1.12 </p>
438    
439 dertobi123 1.17 <p>
440     More information are available in our <uri
441     link="/doc/en/gentoo-ppc-faq.xml">PPC FAQ.</uri>
442     </p>
443 swift 1.12
444     <p>
445 swift 1.1 To burn the downloaded ISO(s), you have to select raw-burning. How you
446 swift 1.29 do this is highly program-dependent. We will discuss <c>cdrecord</c>,
447     <c>k3b</c> and the MacOS burning possibilities here; more information can
448     be found in our <uri link="/doc/en/faq.xml#isoburning">Gentoo FAQ</uri> and
449     the <uri link="/doc/en/gentoo-ppc-faq.xml">PPC FAQ</uri>.
450 swift 1.1 </p>
451    
452     <ul>
453     <li>
454     With cdrecord, you simply type <c>cdrecord dev=/dev/hdc</c> (replace
455     <path>/dev/hdc</path> with your CD-RW drive's device path) followed
456     by the path to the ISO file :)
457     </li>
458     <li>
459 dertobi123 1.17 With k3b, select <c>Tools</c> &gt; <c>CD</c> &gt; <c>Burn Image</c>. Then
460 bennyc 1.6 you can locate your ISO file within the 'Image to Burn' area. Finally click
461 swift 1.3 <c>Start</c>.
462     </li>
463 swift 1.29 <li>
464     With Mac OS X Panther, launch <c>Disk Utility</c> from
465     <path>Applications/Utilities</path>, select <c>Open</c> from the
466     <c>Images</c> menu, select the mounted disk image in the main window and
467     select <c>Burn</c> in the <c>Images</c> menu.
468     </li>
469     <li>
470     With Mac OS X Jaguar, launch <c>Disk Copy</c> from
471     <path>Applications/Utilities</path>, select <c>Burn Image</c> from the
472     <c>File</c> menu, select the ISO and click the <c>Burn</c> button.
473     </li>
474 swift 1.1 </ul>
475    
476     </body>
477     </subsection>
478 swift 1.7 </section>
479     <section>
480     <title>Booting the PPC LiveCD(s)</title>
481 swift 1.1 <subsection>
482 swift 1.7 <title>Default: Apple/IBM</title>
483 swift 1.1 <body>
484    
485     <p>
486 dertobi123 1.17 On NewWorld machines place the LiveCD in the CD-ROM and reboot the system. When
487     the system-start-bell sounds, simply hold down the 'C' until the CD loads.
488     </p>
489    
490     <p>
491     If you have an OldWorld Mac the bootable portion of the livecd can't be used.
492     Instead you need to download <uri
493     link="http://penguinppc.org/projects/bootx/">BootX</uri> and have a working
494     MacOS installed on your system. You need to copy the <c>BootX Extension</c> from
495     the unpacked archive-file into the <c>Extensions Folder</c> and make a new
496     directory called <c>Linux Kernels</c> in the System Folder. In the next step you
497     need to copy the <c>G3</c> kernel and the <c>initrd.img.gz</c> from the LiveCD
498     into the <c>Linux Kernels</c> directory. Then reboot the system and wait for
499     BootX to load. After BootX loaded you still have to set up a few items. In the
500 cam 1.19 options dialog you need to check <c>Use Specified RAM Disk</c> and select the
501 dertobi123 1.17 <c>initrd.img.gz</c> which you put in the <c>Linux Kernels</c> directory. The
502     ramdisk size should be set to at least <c>32000</c>. Furthermore the kernel
503     argument needs to be set to <c>rw init=/linuxrc cdroot</c>. Eventually you are
504     able to boot the LiveCD when you select Linux on Startup.
505     </p>
506    
507     <p>
508     After the LiveCD loaded, you will be greeted by a friendly welcome message and a
509     <e>boot:</e> prompt at the bottom of the screen.
510 swift 1.1 </p>
511    
512     <p>
513     At this prompt you are able to select a kernel for the subarchitecture you use.
514 dertobi123 1.17 We provide <c>G3</c>, <c>G4</c> and <c>G5</c>. All kernels are built with
515     support for multiple CPUs, but they will boot on single processor machines as
516     well.
517 swift 1.1 </p>
518    
519     <p>
520     You are also able to tweak some kernel options at this prompt. The following
521     table lists the available boot options you can add:
522     </p>
523    
524     <table>
525     <tr>
526     <th>Boot Option</th>
527     <th>Description</th>
528     </tr>
529     <tr>
530     <ti><c>video</c></ti>
531     <ti>
532     This option takes one of the following vendor-specific tags:
533     <c>radeonfb</c>, <c>rivafb</c>, <c>atyfb</c>, <c>aty128</c> or
534     <c>ofonly</c>. You can follow this tag with the resolution and refreshrate
535     you want to use. For instance <c>video=radeonfb:1280x1024@75</c>. If you are
536     uncertain what to choose, <c>ofonly</c> will most certainly work.
537     </ti>
538     </tr>
539     <tr>
540 pylon 1.2 <ti><c>nol3</c></ti>
541 swift 1.1 <ti>
542 dertobi123 1.17 Disables level 3 cache on some PowerBooks (needed for at least the 17&quot;)
543 swift 1.1 </ti>
544     </tr>
545     <tr>
546     <ti><c>debug</c></ti>
547     <ti>
548     Enables verbose booting, spawns an initrd shell that can be used to debug
549     the LiveCD
550     </ti>
551     </tr>
552 swift 1.7 <tr>
553     <ti><c>sleep=X</c></ti>
554     <ti>
555     Wait X seconds before continuing; this can be needed by some very old SCSI
556     CD-ROMs which don't speed up the CD quick enough
557     </ti>
558     </tr>
559     <tr>
560     <ti><c>bootfrom=X</c></ti>
561     <ti>
562     Boot from a different device
563     </ti>
564     </tr>
565 swift 1.1 </table>
566    
567     <p>
568     At this prompt, hit enter, and a complete Gentoo Linux environment will be
569 swift 1.7 loaded from the CD. Continue with <uri link="#booted">And When You're
570     Booted...</uri>.
571 swift 1.1 </p>
572    
573 swift 1.7 </body>
574     </subsection>
575     <subsection>
576     <title>Alternative: Pegasos</title>
577     <body>
578    
579 swift 1.1 <p>
580 swift 1.7 On the Pegasos simply insert the CD and at the SmartFirmware boot-prompt type
581 swift 1.8 <c>boot cd /boot/pegasos root=/dev/ram0 init=/linuxrc looptype=gcloop
582     cdroot</c>. If you need any special boot options you can append them to the
583     command-line. For instance <c>boot cd /boot/pegasos root=/dev/ram0
584     init=/linuxrc looptype=gcloop cdroot video=radeonfb:1280x1024@75 mem=256M</c>.
585 swift 1.1 </p>
586    
587 swift 1.7 </body>
588     </subsection>
589     <subsection id="booted">
590     <title>And When You're Booted...</title>
591     <body>
592 swift 1.1
593     <p>
594 swift 1.7 You will be greeted by a root ("#") prompt on the current console. You can also
595     switch to other consoles by pressing Alt-fn-F2, Alt-fn-F3 and Alt-fn-F4. Get
596     back to the one you started on by pressing Alt-fn-F1.
597 swift 1.1 </p>
598    
599     <p>
600     If you are installing Gentoo on a system with a non-US keyboard, use
601     <c>loadkeys</c> to load the keymap for your keyboard. To list the available
602 dertobi123 1.17 keymaps, execute <c>ls /usr/share/keymaps/i386</c>. Do not use the keymaps in
603     <path>ppc</path> or <path>mac</path> as they are for ADB-based OldWorld
604     machines.
605 swift 1.1 </p>
606    
607     <pre caption="Listing available keymaps">
608     <comment>(PPC uses x86 keymaps on most systems. The mac/ppc keymaps provided
609     on the LiveCD are ADB keymaps and unusable with the LiveCD kernel)</comment>
610     # <i>ls /usr/share/keymaps/i386</i>
611     </pre>
612    
613     <p>
614     Now load the keymap of your choice:
615     </p>
616    
617     <pre caption="Loading a keymap">
618 swift 1.7 # <i>loadkeys be-latin1</i>
619 swift 1.1 </pre>
620    
621     <p>
622     Now continue with <uri link="#hardware">Extra Hardware Configuration</uri>.
623     </p>
624    
625     </body>
626     </subsection>
627     <subsection id="hardware">
628     <title>Extra Hardware Configuration</title>
629     <body>
630    
631     <p>
632 dertobi123 1.17 When the LiveCD boots, it tries to detect all your hardware devices and
633 swift 1.1 loads the appropriate kernel modules to support your hardware. In the
634 dertobi123 1.17 vast majority of cases, it does a very good job. However, in some cases, it may
635     not auto-load the kernel modules you need. If the PCI auto-detection missed some
636     of your system's hardware, you will have to load the appropriate kernel modules
637     manually.
638 swift 1.1 </p>
639    
640     <p>
641     In the next example we try to load the <c>8139too</c> module (support for
642     certain kinds of network interfaces):
643     </p>
644    
645     <pre caption="Loading kernel modules">
646     # <i>modprobe 8139too</i>
647     </pre>
648    
649     </body>
650     </subsection>
651     <subsection>
652     <title>Optional: Tweaking Hard Disk Performance</title>
653     <body>
654    
655     <p>
656     If you are an advanced user, you might want to tweak the IDE hard disk
657     performance using <c>hdparm</c>. With the <c>-tT</c> options you can
658     test the performance of your disk (execute it several times to get a
659     more precise impression):
660     </p>
661    
662     <pre caption="Testing disk performance">
663     # <i>hdparm -tT /dev/hda</i>
664     </pre>
665    
666     <p>
667     To tweak, you can use any of the following examples (or experiment
668     yourself) which use <path>/dev/hda</path> as disk (substitute with your
669     disk):
670     </p>
671    
672     <pre caption="Tweaking hard disk performance">
673     <comment>Activate DMA:</comment> # <i>hdparm -d 1 /dev/hda</i>
674     <comment>Activate DMA + Safe Performance-enhancing Options:</comment> # <i>hdparm -d 1 -A 1 -m 16 -u 1 -a 64 /dev/hda</i>
675     </pre>
676    
677     </body>
678     </subsection>
679 swift 1.20 <subsection id="useraccounts">
680 swift 1.1 <title>Optional: User Accounts</title>
681     <body>
682    
683     <p>
684     If you plan on giving other people access to your installation
685     environment or you want to chat using <c>irssi</c> without root privileges (for
686     security reasons), you need to create the necessary user accounts and change
687     the root password.
688     </p>
689    
690     <p>
691     To change the root password, use the <c>passwd</c> utility:
692     </p>
693    
694     <pre caption="Changing the root password">
695     # <i>passwd</i>
696     New password: <comment>(Enter your new password)</comment>
697     Re-enter password: <comment>(Re-enter your password)</comment>
698     </pre>
699    
700     <p>
701 swift 1.5 To create a user account, we first enter their credentials, followed by
702 swift 1.1 its password. We use <c>useradd</c> and <c>passwd</c> for these tasks.
703     In the next example, we create a user called &quot;john&quot;.
704     </p>
705    
706     <pre caption="Creating a user account">
707 swift 1.30 # <i>useradd -m -G users john</i>
708 swift 1.1 # <i>passwd john</i>
709     New password: <comment>(Enter john's password)</comment>
710     Re-enter password: <comment>(Re-enter john's password)</comment>
711     </pre>
712    
713     <p>
714     You can change your user id from root to the newly created user by using
715     <c>su</c>:
716     </p>
717    
718     <pre caption="Changing user id">
719 swift 1.26 # <i>su - john</i>
720 swift 1.1 </pre>
721    
722     </body>
723     </subsection>
724     <subsection>
725 swift 1.20 <title>Optional: Viewing Documentation while Installing</title>
726     <body>
727    
728     <p>
729     If you want to view the Gentoo Handbook (either from-CD or online) during the
730     installation, make sure you have created a user account (see <uri
731 neysx 1.31 link="#useraccounts">Optional: User Accounts</uri>). Then press <c>Alt-F2</c> to
732 swift 1.20 go to a new terminal and log in.
733     </p>
734    
735     <p>
736     If you want to view the documentation on the CD you can immediately run
737     <c>links2</c> to read it:
738     </p>
739    
740     <pre caption="Viewing the on-CD documentation">
741     # <i>links2 /mnt/cdrom/docs/html/index.html</i>
742     </pre>
743    
744     <p>
745     However, it is preferred that you use the online Gentoo Handbook as it will be
746     more recent than the one provided on the CD. You can view it using <c>links2</c>
747     as well, but only after having completed the <e>Configuring your Network</e>
748     chapter (otherwise you won't be able to go on the Internet to view the
749     document):
750     </p>
751    
752     <pre caption="Viewing the Online Documentation">
753     # <i>links2 http://www.gentoo.org/doc/en/handbook/handbook-ppc.xml</i>
754     </pre>
755    
756     <p>
757     You can go back to your original terminal by pressing <c>Alt-F1</c>.
758     </p>
759    
760     </body>
761     </subsection>
762     <subsection>
763 swift 1.1 <title>Optional: Starting the SSH Daemon</title>
764     <body>
765    
766     <p>
767     If you want to allow other users to access your computer during the
768     Gentoo installation (perhaps because those users are going to help you
769     install Gentoo, or even do it for you), you need to create a user
770     account for them and perhaps even provide them with your root password
771     (<e>only</e> do that <e>if</e> you <b>fully trust</b> that user).
772     </p>
773    
774     <p>
775     To fire up the SSH daemon, execute the following command:
776     </p>
777    
778     <pre caption="Starting the SSH daemon">
779     # <i>/etc/init.d/sshd start</i>
780     </pre>
781    
782     <p>
783 swift 1.28 To be able to use sshd, you first need to set up your networking. Continue with
784 swift 1.1 the chapter on <uri link="?part=1&amp;chap=3">Configuring your Network</uri>.
785     </p>
786    
787     </body>
788     </subsection>
789     </section>
790     </sections>

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