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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-ia64-medium.xml,v 1.5 2008/04/01 08:53:46 nightmorph Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-ia64-medium.xml,v 1.6 2008/05/02 08:04:23 nightmorph Exp $ -->
8 8
9<sections> 9<sections>
10 10
11<version>6.0</version> 11<version>6.1</version>
12<date>2008-04-01</date> 12<date>2008-05-02</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>
283<p> 283<p>
284You can also provide kernel options. They represent optional settings 284You can also provide kernel options. They represent optional settings
285you can (de)activate at will. 285you can (de)activate at will.
286</p> 286</p>
287 287
288<pre caption="Options available to pass to your kernel of choice"> 288</body>
289- agpgart loads agpgart (use if you have graphic problems,lockups)
290- ide=nodma force disabling of DMA for malfunctioning IDE devices
291- doscsi scan for scsi devices (breaks some ethernet cards)
292- dopcmcia starts pcmcia service for PCMCIA cdroms
293- nofirewire disables firewire modules in initrd (for firewire cdroms,etc)
294- nokeymap disables keymap selection for non-us keyboard layouts
295- docache cache the entire runtime portion of CD in RAM, allows you
296 to umount /mnt/cdrom to mount another CD.
297- nodetect causes hwsetup/kudzu and hotplug not to run
298- nousb disables usb module load from initrd, disables hotplug
299- nodhcp dhcp does not automatically start if nic detected
300- nohotplug disables loading hotplug service
301- noapic disable apic (try if having hardware problems nics,scsi,etc)
302- noevms disable loading of EVMS2 modules
303- nolvm disable loading of LVM2 modules
304- noload=module1,[module2,[...]]
305 disable loading of specific kernel modules
306- dosshd starts sshd, useful for unattended installs
307- passwd=foo sets whatever is after the = as the root password; use with the
308 dosshd option for remote installs
309</pre>
310 289
290<body>
291<include href="hb-install-kernelparams.xml"/>
292</body>
293
294<body>
295
296<note>
297The CD will check for "no*" options before "do*" options, so that you can
298override any option in the exact order you specify.
299</note>
300
311<p> 301<p>
312You will then be greeted with a boot screen. If you are installing 302You will then be greeted with a boot screen. If you are installing Gentoo on a
313Gentoo on a system with a non-US keyboard, make sure you select the 303system with a non-US keyboard, make sure you select the layout at the prompt. If
314layout at the prompt. If no selection is made in 10 seconds the 304no selection is made in 10 seconds the default (US keyboard) will be accepted
315default (US keyboard) will be accepted and the boot process will 305and the boot process will continue. Once the boot process completes, you will be
316continue. Once the boot process completes, you will be automatically
317logged in to the "Live" Gentoo Linux as "root", the super user. You 306automatically logged in to the "Live" Gentoo Linux as "root", the super user.
318should have a root ("#") prompt on the current console. If you are 307You should have a root ("#") prompt on the current console. If you are using a
319using a video console and have a keyboard connected you can also 308video console and have a keyboard connected you can also switch to other
320switch to other consoles by pressing Alt-F2, Alt-F3 and Alt-F4. Get 309consoles by pressing Alt-F2, Alt-F3 and Alt-F4. Get back to the one you started
321back to the one you started on by pressing Alt-F1. 310on by pressing Alt-F1.
322</p> 311</p>
323 312
324<p> 313<p>
325Now continue with <uri link="#hardware">Extra Hardware Configuration</uri>. 314Now continue with <uri link="#hardware">Extra Hardware Configuration</uri>.
326</p> 315</p>
327 316
328</body> 317</body>
329</subsection> 318</subsection>
330<subsection id="hardware">
331<title>Extra Hardware Configuration</title>
332<body>
333 319
334<p>
335When the Installation CD boots, it tries to detect all your hardware devices
336and loads the appropriate kernel modules to support your hardware. In the vast
337majority of cases, it does a very good job. However, in some cases it may not
338auto-load the kernel modules you need. If the PCI auto-detection missed some of
339your system's hardware, you will have to load the appropriate kernel modules
340manually.
341</p>
342
343<p>
344In the next example we try to load the <c>8139too</c> module (support for
345certain kinds of network interfaces):
346</p>
347
348<pre caption="Loading kernel modules">
349# <i>modprobe 8139too</i>
350</pre>
351
352</body>
353</subsection> 320<subsection>
321<include href="hb-install-bootconfig.xml"/>
354<subsection> 322</subsection>
355<title>Optional: Tweaking Hard Disk Performance</title>
356<body>
357 323
358<p>
359If you are an advanced user, you might want to tweak the IDE hard disk
360performance using <c>hdparm</c>. With the <c>-tT</c> options you can
361test the performance of your disk (execute it several times to get a
362more precise impression):
363</p>
364
365<pre caption="Testing disk performance">
366# <i>hdparm -tT /dev/hda</i>
367</pre>
368
369<p>
370To tweak, you can use any of the following examples (or experiment
371yourself) which use <path>/dev/hda</path> as disk (substitute with your
372disk):
373</p>
374
375<pre caption="Tweaking hard disk performance">
376<comment>(Activate DMA:)</comment>
377# <i>hdparm -d 1 /dev/hda</i>
378<comment>(Activate Safe Performance Options:)</comment>
379# <i>hdparm -d 1 -A 1 -m 16 -u 1 -a 64 /dev/hda</i>
380</pre>
381
382</body>
383</subsection>
384<subsection id="useraccounts">
385<title>Optional: User Accounts</title>
386<body>
387
388<p>
389If you plan on giving other people access to your installation
390environment or you want to chat using <c>irssi</c> without root privileges (for
391security reasons), you need to create the necessary user accounts and change
392the root password.
393</p>
394
395<p>
396To change the root password, use the <c>passwd</c> utility:
397</p>
398
399<pre caption="Changing the root password">
400# <i>passwd</i>
401New password: <comment>(Enter your new password)</comment>
402Re-enter password: <comment>(Re-enter your password)</comment>
403</pre>
404
405<p>
406To create a user account, we first enter their credentials, followed by
407its password. We use <c>useradd</c> and <c>passwd</c> for these tasks.
408In the next example, we create a user called "john".
409</p>
410
411<pre caption="Creating a user account">
412# <i>useradd -m -G users john</i>
413# <i>passwd john</i>
414New password: <comment>(Enter john's password)</comment>
415Re-enter password: <comment>(Re-enter john's password)</comment>
416</pre>
417
418<p>
419You can change your user id from root to the newly created user by using
420<c>su</c>:
421</p>
422
423<pre caption="Changing user id">
424# <i>su - john</i>
425</pre>
426
427</body>
428</subsection>
429<subsection>
430<title>Optional: Starting the SSH Daemon</title>
431<body>
432
433<p>
434If you want to allow other users to access your computer during the
435Gentoo installation (perhaps because those users are going to help you
436install Gentoo, or even do it for you), you need to create a user
437account for them and perhaps even provide them with your root password
438(<e>only</e> do that <e>if</e> you <b>fully trust</b> that user).
439</p>
440
441<p>
442To fire up the SSH daemon, execute the following command:
443</p>
444
445<pre caption="Starting the SSH daemon">
446# <i>/etc/init.d/sshd start</i>
447</pre>
448
449<p>
450To be able to use sshd, you first need to set up your networking. Continue with
451the chapter on <uri link="?part=1&amp;chap=3">Configuring your Network</uri>.
452</p>
453
454</body>
455</subsection>
456</section> 324</section>
457</sections> 325</sections>

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