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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 swift 1.32 <!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-ppc-medium.xml,v 1.31 2004/11/04 21:28:44 neysx Exp $ -->
8 swift 1.1
9     <sections>
10 swift 1.32
11     <version>1.31</version>
12     <date>November 4, 2004</date>
13    
14 swift 1.1 <section>
15     <title>Hardware Requirements</title>
16     <subsection>
17     <title>Introduction</title>
18     <body>
19    
20     <p>
21     Before we start, we first list what hardware requirements you need to
22     successfully install Gentoo on your box. This of course depends on your
23     architecture.
24     </p>
25    
26     </body>
27     </subsection>
28     <subsection>
29     <title>The PPC Architecture</title>
30     <body>
31    
32     <p>
33     Check the following requirements before you
34     continue with the Gentoo installation:
35     </p>
36    
37     <ul>
38     <li>
39 dertobi123 1.17 You need at least 2 GB of free disk space
40 swift 1.1 </li>
41     <li>
42 dertobi123 1.17 If you do not use prebuilt packages, you need at least 300 MB of memory (RAM +
43 sejo 1.24 swap), if you do use prebuilt packages you need at least 64 MB of memory to boot the system.
44 swift 1.1 </li>
45     <li>
46 dertobi123 1.17 For the <e>PowerPC architecture</e>, you can install Gentoo/PPC on NewWorld machines
47 swift 1.1 having a Power or PowerPC microprocessor, including but not limited to G3, G4
48 dertobi123 1.17 or G5 powered Apple computers such as the iMac, the eMac, the iBook, the PowerBook,
49 pylon 1.21 Xserve, PowerMac, and bPlan's Pegasos II. We also provide limited
50 dertobi123 1.17 support for OldWorld systems, IBM (RS/6000, iSeries, pSeries, ...) and Amiga
51 swift 1.7 systems. Be sure to read up on the <uri link="/doc/en/gentoo-ppc-faq.xml">Gentoo
52 dertobi123 1.17 PPC FAQ</uri> before you begin.
53 swift 1.1 </li>
54     </ul>
55    
56     </body>
57     </subsection>
58     </section>
59     <section>
60     <title>Make your Choice</title>
61     <subsection>
62     <title>Introduction</title>
63     <body>
64    
65     <p>
66     Still interested in trying out Gentoo? Well, then it is now time to
67     choose the installation medium you want to use. Yes, you have the
68     choice, no, they are not all equal, and yes, the result is always the same: a
69     Gentoo base system.
70     </p>
71    
72     <p>
73     The installation media we will describe are:
74     </p>
75    
76     <ul>
77     <li>Gentoo's Minimal LiveCD</li>
78     <li>Gentoo's Universal LiveCD</li>
79     </ul>
80    
81     <p>
82     Every single media has its advantages and disadvantages. We will list
83     the pros and cons of every medium so you have all the information to
84     make a justified decision. But before we continue, let's explain our
85     three-stage installation.
86     </p>
87    
88     </body>
89     </subsection>
90     <subsection>
91     <title>The Three Stages</title>
92     <body>
93    
94     <p>
95     Gentoo Linux can be installed using one of three <e>stage</e> tarball files.
96     The one you choose depends on how much of the system you want to compile
97     yourself. The <e>stage1</e> tarball is used when you want to bootstrap and
98     build the entire system from scratch. The <e>stage2</e> tarball is used for
99     building the entire system from a bootstrapped &quot;semi-compiled&quot; state.
100     The <e>stage3</e> tarball already contains a basic Gentoo Linux system that has
101     been built for you. As we will explain later, you can also install
102     Gentoo without compiling anything (except your kernel and some optional
103     packages). If you want this, you have to use a <e>stage3</e> tarball.
104     </p>
105    
106     <p>
107     Now what stage do you have to choose?
108     </p>
109    
110     <p>
111     Starting from a <e>stage1</e> allows you to have total control over the
112     optimization settings and optional build-time functionality that is
113     initially enabled on your system. This makes <e>stage1</e> installs good for
114     power users who know what they are doing. It is also a great
115     installation method for those who would like to know more about the
116     inner workings of Gentoo Linux.
117     </p>
118    
119 swift 1.10 <p>
120     A <e>stage1</e> installation can only be performed when you have a working
121     Internet connection.
122     </p>
123    
124 swift 1.1 <table>
125     <tr>
126     <th>Stage1</th>
127     <th>Pros and Cons</th>
128     </tr>
129     <tr>
130     <th>+</th>
131     <ti>
132     Allows you to have total control over the optimization settings and optional
133     build-time functionality that is initially enabled on your system
134     </ti>
135     </tr>
136     <tr>
137     <th>+</th>
138     <ti>Suitable for powerusers that know what they are doing</ti>
139     </tr>
140     <tr>
141     <th>+</th>
142     <ti>Allows you to learn more about the inner workings of Gentoo</ti>
143     </tr>
144     <tr>
145     <th>-</th>
146     <ti>Takes a long time to finish the installation</ti>
147     </tr>
148     <tr>
149     <th>-</th>
150     <ti>
151     If you don't intend to tweak the settings, it is probably a waste of time
152     </ti>
153     </tr>
154 swift 1.10 <tr>
155     <th>-</th>
156     <ti>
157     Not suitable for networkless installations
158     </ti>
159     </tr>
160 swift 1.1 </table>
161    
162     <p>
163     <e>Stage2</e> installs allow you to skip the bootstrap process and doing this
164     is fine if you are happy with the optimization settings that we chose
165     for your particular <e>stage2</e> tarball.
166     </p>
167    
168 swift 1.10 <p>
169     A <e>stage2</e> installation can only be performed when you have a working
170     Internet connection.
171     </p>
172    
173 swift 1.1 <table>
174     <tr>
175     <th>Stage2</th>
176     <th>Pros and Cons</th>
177     </tr>
178     <tr>
179     <th>+</th>
180     <ti>You don't need to bootstrap</ti>
181     </tr>
182     <tr>
183     <th>+</th>
184     <ti>Faster than starting with stage1</ti>
185     </tr>
186     <tr>
187     <th>+</th>
188     <ti>You can still tweak your settings</ti>
189     </tr>
190     <tr>
191     <th>-</th>
192     <ti>You cannot tweak as much as with a stage1</ti>
193     </tr>
194     <tr>
195     <th>-</th>
196     <ti>It's not the fastest way to install Gentoo</ti>
197     </tr>
198     <tr>
199     <th>-</th>
200     <ti>You have to accept the optimizations we chose for the bootstrap</ti>
201     </tr>
202 swift 1.10 <tr>
203     <th>-</th>
204     <ti>
205     Not suitable for networkless installations
206     </ti>
207     </tr>
208 swift 1.1 </table>
209    
210     <p>
211     Choosing to go with a <e>stage3</e> allows for the fastest install of Gentoo
212     Linux, but also means that your base system will have the optimization
213     settings that we chose for you (which to be honest, are good settings
214     and were carefully chosen to enhance performance while maintaining
215     stability). <e>stage3</e> is also required if you want to install Gentoo using
216 swift 1.9 prebuilt packages or without a network connection.
217 swift 1.1 </p>
218    
219     <table>
220     <tr>
221     <th>Stage3</th>
222     <th>Pros and Cons</th>
223     </tr>
224     <tr>
225     <th>+</th>
226     <ti>Fastest way to get a Gentoo base system</ti>
227     </tr>
228     <tr>
229 swift 1.10 <th>+</th>
230     <ti>Suitable for networkless installations</ti>
231     </tr>
232     <tr>
233 swift 1.1 <th>-</th>
234     <ti>You cannot tweak the base system - it's built already</ti>
235     </tr>
236     <tr>
237     <th>-</th>
238     <ti>You cannot brag about having used stage1 or stage2</ti>
239     </tr>
240     </table>
241    
242     <p>
243     Write down (or remember) what stage you want to use. You need this later when
244     you decide what LiveCD (or other installation medium) you want to use. You might
245     be interested to know that, if you decide to use different optimization settings
246     after having installed Gentoo, you will be able to recompile your entire system
247     with the new optimization settings.
248     </p>
249    
250     <p>
251     Now take a look at the available installation media.
252     </p>
253    
254     </body>
255     </subsection>
256     <subsection>
257     <title>Gentoo LiveCDs</title>
258     <body>
259    
260 pylon 1.21 <note>
261     The Gentoo/PPC 2004.2 release is not official, so you will not find them on the
262 pylon 1.25 mirrors. All of our self-organised mirrors are currently down. The only chance
263     you can get the LiveCDs is via <uri
264     link="http://torrents.gentoo.org/torrents/">BitTorrent</uri>.
265 pylon 1.21 </note>
266    
267     <note>
268     It is known that the Pegasos II will not boot the 2004.2 LiveCD. Please use the
269     2004.1 LiveCD.
270     </note>
271    
272 swift 1.1 <p>
273     The <e>Gentoo LiveCDs</e> are bootable CDs which contain a
274     self-sustained Gentoo environment. They allow you to boot Linux from the CD.
275     During the boot process your hardware is detected and the appropriate drivers
276     are loaded. They are maintained by Gentoo developers.
277     </p>
278    
279     <p>
280 swift 1.28 All LiveCDs allow you to boot, set up networking, initialize your
281 swift 1.1 partitions and start installing Gentoo from the Internet. However, some
282     LiveCDs also contain all necessary source code so you are able to install
283     Gentoo without a working network configuration.
284     </p>
285    
286     <p>
287     Now what do these LiveCDs contain?
288     </p>
289    
290     </body>
291     </subsection>
292     <subsection>
293     <title>Gentoo's Minimal LiveCD</title>
294     <body>
295    
296     <p>
297     This is a small, no-nonsense, bootable CD which sole purpose is to boot the
298     system, prepare the networking and continue with the Gentoo installation. It
299     does not contain any stages (or, in some cases, a single stage1 file),
300     source code or precompiled packages. For example the ppc variant of this
301 dertobi123 1.17 LiveCD can be found in the <path>livecd</path> subdirectory and is called
302     <c>install-ppc-minimal-2004.2.iso</c>.
303 swift 1.1 </p>
304    
305     <table>
306     <tr>
307     <th>Minimal LiveCD</th>
308     <th>Pros and Cons</th>
309     </tr>
310     <tr>
311     <th>+</th>
312     <ti>Smallest download</ti>
313     </tr>
314     <tr>
315     <th>+</th>
316     <ti>Suitable for a complete architecture</ti>
317     </tr>
318     <tr>
319     <th>+</th>
320     <ti>
321     You can do a stage1, stage2 or stage3 by getting the stage tarball off the
322     net
323     </ti>
324     </tr>
325     <tr>
326     <th>-</th>
327     <ti>
328 swift 1.27 Contains no stages, no Portage snapshot, no GRP packages and therefore not
329 swift 1.1 suitable for networkless installation
330     </ti>
331     </tr>
332     </table>
333    
334     </body>
335     </subsection>
336     <subsection>
337     <title>Gentoo's Universal LiveCD</title>
338     <body>
339    
340     <p>
341     Gentoo's Universal LiveCD is a bootable CD suitable to install Gentoo without
342     networking. It contains a stage1 and several stage3 tarballs (optimized for the
343     individual subarchitectures). For example the ppc variant of this CD is called
344 dertobi123 1.17 <c>install-ppc-universal-2004.2.iso</c> and can be found in the
345     <path>livecd</path> subdirectory.
346 swift 1.1 </p>
347    
348     <p>
349 swift 1.7 If you take a closer look on our mirrors, you will see
350     that we provide <e>Gentoo Package CDs</e>. This CD (which isn't
351 swift 1.1 bootable) only contains precompiled packages and can be used to install software
352     after a succesfull Gentoo Installation. To install Gentoo, you only
353     need the Universal LiveCD, but if you want OpenOffice.org, Mozilla, KDE, GNOME
354     etc. without having to compile every single one of them, you need the Packages
355     CD too. For example the G4 (a subarchitecture of ppc) Packages CD is
356 dertobi123 1.17 called <c>packages-g4-2004.2.iso</c> and can be found in the appropriate
357 swift 1.1 subdirectory (<path>g4/</path>).
358     </p>
359    
360 swift 1.11 <p>
361     You only need the Packages CD if you want to perform a stage3 with GRP
362     installation.
363     </p>
364    
365 swift 1.1 <table>
366     <tr>
367     <th>Universal LiveCD with Packages CD</th>
368     <th>Pros and Cons</th>
369     </tr>
370     <tr>
371     <th>+</th>
372     <ti>Packages CD is optimized to your architecture and subarchitecture</ti>
373     </tr>
374     <tr>
375     <th>+</th>
376     <ti>
377     Packages CD provides precompiled packages for fast Gentoo installations
378     </ti>
379     </tr>
380     <tr>
381     <th>+</th>
382     <ti>
383     Contains everything you need. You can even install without a network
384     connection.
385     </ti>
386     </tr>
387     <tr>
388     <th>-</th>
389     <ti>Huge download</ti>
390     </tr>
391     </table>
392    
393     </body>
394     </subsection>
395     </section>
396     <section>
397     <title>Download, Burn and Boot a Gentoo LiveCD</title>
398     <subsection>
399     <title>Downloading and Burning the LiveCDs</title>
400     <body>
401    
402     <p>
403     You have chosen to use a Gentoo LiveCD (if not, then you are reading the
404     wrong section). We'll first start by downloading and burning the chosen
405     LiveCD. We previously discussed the several available LiveCDs, but where can you
406     find them?
407     </p>
408    
409     <p>
410     Visit one of our <uri
411     link="/main/en/mirrors.xml">mirrors</uri> and go to
412 dertobi123 1.17 <path>releases/ppc/2004.2/livecd</path>, which is
413 swift 1.1 the path where the LiveCD(s) of your choice are located. Inside that
414     directory you'll find so-called ISO-files. Those are full CD images
415     which you can write on a CD-R.
416     </p>
417    
418     <p>
419     In case you wonder if your downloaded file is corrupted or not, you can
420     check its MD5 checksum and compare it with the MD5 checksum we provide (such as
421 dertobi123 1.17 <path>install-ppc-minimal-2004.2.iso.md5</path>). You can check the MD5 checksum
422 swift 1.1 with the <c>md5sum</c> tool under Linux/Unix or <uri
423 neysx 1.16 link="http://www.etree.org/md5com.html">md5sum</uri> for Windows.
424 swift 1.1 </p>
425    
426     <p>
427 dertobi123 1.17 As long as Mac OS X does not support <c>md5sum</c> you have to use the md5
428     capability of <c>openssl</c>. Therefore type in Terminal.app:
429 swift 1.12 </p>
430    
431 dertobi123 1.18 <pre caption="md5sum with the help of openssl">
432 dertobi123 1.17 $ <i>openssl md5 /path/to/iso</i>
433     <comment>This could take some time depending of the size of the ISO and your CPU</comment>
434 swift 1.12 </pre>
435    
436     <p>
437 dertobi123 1.17 Now compare this output with the appropriate file found on the server where you
438     downloaded the ISO (the file will end with .md5). If it is the same, the ISO
439     image downloaded correctly. Be sure you have not mounted it (e.g. with Disk
440     Copy) yet!
441 swift 1.12 </p>
442    
443 dertobi123 1.17 <p>
444     More information are available in our <uri
445     link="/doc/en/gentoo-ppc-faq.xml">PPC FAQ.</uri>
446     </p>
447 swift 1.12
448     <p>
449 swift 1.1 To burn the downloaded ISO(s), you have to select raw-burning. How you
450 swift 1.29 do this is highly program-dependent. We will discuss <c>cdrecord</c>,
451     <c>k3b</c> and the MacOS burning possibilities here; more information can
452     be found in our <uri link="/doc/en/faq.xml#isoburning">Gentoo FAQ</uri> and
453     the <uri link="/doc/en/gentoo-ppc-faq.xml">PPC FAQ</uri>.
454 swift 1.1 </p>
455    
456     <ul>
457     <li>
458     With cdrecord, you simply type <c>cdrecord dev=/dev/hdc</c> (replace
459     <path>/dev/hdc</path> with your CD-RW drive's device path) followed
460     by the path to the ISO file :)
461     </li>
462     <li>
463 dertobi123 1.17 With k3b, select <c>Tools</c> &gt; <c>CD</c> &gt; <c>Burn Image</c>. Then
464 bennyc 1.6 you can locate your ISO file within the 'Image to Burn' area. Finally click
465 swift 1.3 <c>Start</c>.
466     </li>
467 swift 1.29 <li>
468     With Mac OS X Panther, launch <c>Disk Utility</c> from
469     <path>Applications/Utilities</path>, select <c>Open</c> from the
470     <c>Images</c> menu, select the mounted disk image in the main window and
471     select <c>Burn</c> in the <c>Images</c> menu.
472     </li>
473     <li>
474     With Mac OS X Jaguar, launch <c>Disk Copy</c> from
475     <path>Applications/Utilities</path>, select <c>Burn Image</c> from the
476     <c>File</c> menu, select the ISO and click the <c>Burn</c> button.
477     </li>
478 swift 1.1 </ul>
479    
480     </body>
481     </subsection>
482 swift 1.7 </section>
483     <section>
484     <title>Booting the PPC LiveCD(s)</title>
485 swift 1.1 <subsection>
486 swift 1.7 <title>Default: Apple/IBM</title>
487 swift 1.1 <body>
488    
489     <p>
490 dertobi123 1.17 On NewWorld machines place the LiveCD in the CD-ROM and reboot the system. When
491     the system-start-bell sounds, simply hold down the 'C' until the CD loads.
492     </p>
493    
494     <p>
495     If you have an OldWorld Mac the bootable portion of the livecd can't be used.
496     Instead you need to download <uri
497     link="http://penguinppc.org/projects/bootx/">BootX</uri> and have a working
498     MacOS installed on your system. You need to copy the <c>BootX Extension</c> from
499     the unpacked archive-file into the <c>Extensions Folder</c> and make a new
500     directory called <c>Linux Kernels</c> in the System Folder. In the next step you
501     need to copy the <c>G3</c> kernel and the <c>initrd.img.gz</c> from the LiveCD
502     into the <c>Linux Kernels</c> directory. Then reboot the system and wait for
503     BootX to load. After BootX loaded you still have to set up a few items. In the
504 cam 1.19 options dialog you need to check <c>Use Specified RAM Disk</c> and select the
505 dertobi123 1.17 <c>initrd.img.gz</c> which you put in the <c>Linux Kernels</c> directory. The
506     ramdisk size should be set to at least <c>32000</c>. Furthermore the kernel
507     argument needs to be set to <c>rw init=/linuxrc cdroot</c>. Eventually you are
508     able to boot the LiveCD when you select Linux on Startup.
509     </p>
510    
511     <p>
512     After the LiveCD loaded, you will be greeted by a friendly welcome message and a
513     <e>boot:</e> prompt at the bottom of the screen.
514 swift 1.1 </p>
515    
516     <p>
517     At this prompt you are able to select a kernel for the subarchitecture you use.
518 dertobi123 1.17 We provide <c>G3</c>, <c>G4</c> and <c>G5</c>. All kernels are built with
519     support for multiple CPUs, but they will boot on single processor machines as
520     well.
521 swift 1.1 </p>
522    
523     <p>
524     You are also able to tweak some kernel options at this prompt. The following
525     table lists the available boot options you can add:
526     </p>
527    
528     <table>
529     <tr>
530     <th>Boot Option</th>
531     <th>Description</th>
532     </tr>
533     <tr>
534     <ti><c>video</c></ti>
535     <ti>
536     This option takes one of the following vendor-specific tags:
537     <c>radeonfb</c>, <c>rivafb</c>, <c>atyfb</c>, <c>aty128</c> or
538     <c>ofonly</c>. You can follow this tag with the resolution and refreshrate
539     you want to use. For instance <c>video=radeonfb:1280x1024@75</c>. If you are
540     uncertain what to choose, <c>ofonly</c> will most certainly work.
541     </ti>
542     </tr>
543     <tr>
544 pylon 1.2 <ti><c>nol3</c></ti>
545 swift 1.1 <ti>
546 dertobi123 1.17 Disables level 3 cache on some PowerBooks (needed for at least the 17&quot;)
547 swift 1.1 </ti>
548     </tr>
549     <tr>
550     <ti><c>debug</c></ti>
551     <ti>
552     Enables verbose booting, spawns an initrd shell that can be used to debug
553     the LiveCD
554     </ti>
555     </tr>
556 swift 1.7 <tr>
557     <ti><c>sleep=X</c></ti>
558     <ti>
559     Wait X seconds before continuing; this can be needed by some very old SCSI
560     CD-ROMs which don't speed up the CD quick enough
561     </ti>
562     </tr>
563     <tr>
564     <ti><c>bootfrom=X</c></ti>
565     <ti>
566     Boot from a different device
567     </ti>
568     </tr>
569 swift 1.1 </table>
570    
571     <p>
572     At this prompt, hit enter, and a complete Gentoo Linux environment will be
573 swift 1.7 loaded from the CD. Continue with <uri link="#booted">And When You're
574     Booted...</uri>.
575 swift 1.1 </p>
576    
577 swift 1.7 </body>
578     </subsection>
579     <subsection>
580     <title>Alternative: Pegasos</title>
581     <body>
582    
583 swift 1.1 <p>
584 swift 1.7 On the Pegasos simply insert the CD and at the SmartFirmware boot-prompt type
585 swift 1.8 <c>boot cd /boot/pegasos root=/dev/ram0 init=/linuxrc looptype=gcloop
586     cdroot</c>. If you need any special boot options you can append them to the
587     command-line. For instance <c>boot cd /boot/pegasos root=/dev/ram0
588     init=/linuxrc looptype=gcloop cdroot video=radeonfb:1280x1024@75 mem=256M</c>.
589 swift 1.1 </p>
590    
591 swift 1.7 </body>
592     </subsection>
593     <subsection id="booted">
594     <title>And When You're Booted...</title>
595     <body>
596 swift 1.1
597     <p>
598 swift 1.7 You will be greeted by a root ("#") prompt on the current console. You can also
599     switch to other consoles by pressing Alt-fn-F2, Alt-fn-F3 and Alt-fn-F4. Get
600     back to the one you started on by pressing Alt-fn-F1.
601 swift 1.1 </p>
602    
603     <p>
604     If you are installing Gentoo on a system with a non-US keyboard, use
605     <c>loadkeys</c> to load the keymap for your keyboard. To list the available
606 dertobi123 1.17 keymaps, execute <c>ls /usr/share/keymaps/i386</c>. Do not use the keymaps in
607     <path>ppc</path> or <path>mac</path> as they are for ADB-based OldWorld
608     machines.
609 swift 1.1 </p>
610    
611     <pre caption="Listing available keymaps">
612     <comment>(PPC uses x86 keymaps on most systems. The mac/ppc keymaps provided
613     on the LiveCD are ADB keymaps and unusable with the LiveCD kernel)</comment>
614     # <i>ls /usr/share/keymaps/i386</i>
615     </pre>
616    
617     <p>
618     Now load the keymap of your choice:
619     </p>
620    
621     <pre caption="Loading a keymap">
622 swift 1.7 # <i>loadkeys be-latin1</i>
623 swift 1.1 </pre>
624    
625     <p>
626     Now continue with <uri link="#hardware">Extra Hardware Configuration</uri>.
627     </p>
628    
629     </body>
630     </subsection>
631     <subsection id="hardware">
632     <title>Extra Hardware Configuration</title>
633     <body>
634    
635     <p>
636 dertobi123 1.17 When the LiveCD boots, it tries to detect all your hardware devices and
637 swift 1.1 loads the appropriate kernel modules to support your hardware. In the
638 dertobi123 1.17 vast majority of cases, it does a very good job. However, in some cases, it may
639     not auto-load the kernel modules you need. If the PCI auto-detection missed some
640     of your system's hardware, you will have to load the appropriate kernel modules
641     manually.
642 swift 1.1 </p>
643    
644     <p>
645     In the next example we try to load the <c>8139too</c> module (support for
646     certain kinds of network interfaces):
647     </p>
648    
649     <pre caption="Loading kernel modules">
650     # <i>modprobe 8139too</i>
651     </pre>
652    
653     </body>
654     </subsection>
655     <subsection>
656     <title>Optional: Tweaking Hard Disk Performance</title>
657     <body>
658    
659     <p>
660     If you are an advanced user, you might want to tweak the IDE hard disk
661     performance using <c>hdparm</c>. With the <c>-tT</c> options you can
662     test the performance of your disk (execute it several times to get a
663     more precise impression):
664     </p>
665    
666     <pre caption="Testing disk performance">
667     # <i>hdparm -tT /dev/hda</i>
668     </pre>
669    
670     <p>
671     To tweak, you can use any of the following examples (or experiment
672     yourself) which use <path>/dev/hda</path> as disk (substitute with your
673     disk):
674     </p>
675    
676     <pre caption="Tweaking hard disk performance">
677     <comment>Activate DMA:</comment> # <i>hdparm -d 1 /dev/hda</i>
678     <comment>Activate DMA + Safe Performance-enhancing Options:</comment> # <i>hdparm -d 1 -A 1 -m 16 -u 1 -a 64 /dev/hda</i>
679     </pre>
680    
681     </body>
682     </subsection>
683 swift 1.20 <subsection id="useraccounts">
684 swift 1.1 <title>Optional: User Accounts</title>
685     <body>
686    
687     <p>
688     If you plan on giving other people access to your installation
689     environment or you want to chat using <c>irssi</c> without root privileges (for
690     security reasons), you need to create the necessary user accounts and change
691     the root password.
692     </p>
693    
694     <p>
695     To change the root password, use the <c>passwd</c> utility:
696     </p>
697    
698     <pre caption="Changing the root password">
699     # <i>passwd</i>
700     New password: <comment>(Enter your new password)</comment>
701     Re-enter password: <comment>(Re-enter your password)</comment>
702     </pre>
703    
704     <p>
705 swift 1.5 To create a user account, we first enter their credentials, followed by
706 swift 1.1 its password. We use <c>useradd</c> and <c>passwd</c> for these tasks.
707     In the next example, we create a user called &quot;john&quot;.
708     </p>
709    
710     <pre caption="Creating a user account">
711 swift 1.30 # <i>useradd -m -G users john</i>
712 swift 1.1 # <i>passwd john</i>
713     New password: <comment>(Enter john's password)</comment>
714     Re-enter password: <comment>(Re-enter john's password)</comment>
715     </pre>
716    
717     <p>
718     You can change your user id from root to the newly created user by using
719     <c>su</c>:
720     </p>
721    
722     <pre caption="Changing user id">
723 swift 1.26 # <i>su - john</i>
724 swift 1.1 </pre>
725    
726     </body>
727     </subsection>
728     <subsection>
729 swift 1.20 <title>Optional: Viewing Documentation while Installing</title>
730     <body>
731    
732     <p>
733     If you want to view the Gentoo Handbook (either from-CD or online) during the
734     installation, make sure you have created a user account (see <uri
735 neysx 1.31 link="#useraccounts">Optional: User Accounts</uri>). Then press <c>Alt-F2</c> to
736 swift 1.20 go to a new terminal and log in.
737     </p>
738    
739     <p>
740     If you want to view the documentation on the CD you can immediately run
741     <c>links2</c> to read it:
742     </p>
743    
744     <pre caption="Viewing the on-CD documentation">
745     # <i>links2 /mnt/cdrom/docs/html/index.html</i>
746     </pre>
747    
748     <p>
749     However, it is preferred that you use the online Gentoo Handbook as it will be
750     more recent than the one provided on the CD. You can view it using <c>links2</c>
751     as well, but only after having completed the <e>Configuring your Network</e>
752     chapter (otherwise you won't be able to go on the Internet to view the
753     document):
754     </p>
755    
756     <pre caption="Viewing the Online Documentation">
757     # <i>links2 http://www.gentoo.org/doc/en/handbook/handbook-ppc.xml</i>
758     </pre>
759    
760     <p>
761     You can go back to your original terminal by pressing <c>Alt-F1</c>.
762     </p>
763    
764     </body>
765     </subsection>
766     <subsection>
767 swift 1.1 <title>Optional: Starting the SSH Daemon</title>
768     <body>
769    
770     <p>
771     If you want to allow other users to access your computer during the
772     Gentoo installation (perhaps because those users are going to help you
773     install Gentoo, or even do it for you), you need to create a user
774     account for them and perhaps even provide them with your root password
775     (<e>only</e> do that <e>if</e> you <b>fully trust</b> that user).
776     </p>
777    
778     <p>
779     To fire up the SSH daemon, execute the following command:
780     </p>
781    
782     <pre caption="Starting the SSH daemon">
783     # <i>/etc/init.d/sshd start</i>
784     </pre>
785    
786     <p>
787 swift 1.28 To be able to use sshd, you first need to set up your networking. Continue with
788 swift 1.1 the chapter on <uri link="?part=1&amp;chap=3">Configuring your Network</uri>.
789     </p>
790    
791     </body>
792     </subsection>
793     </section>
794     </sections>

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