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#103232, `cp System.map /boot` is not needed

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-ppc64-bootloader.xml,v 1.16 2005/10/06 18:20:40 jkt Exp $ -->
8
9 <sections>
10
11 <version>2.3</version>
12 <date>2005-10-06</date>
13
14 <section>
15 <title>Making your Choice</title>
16 <subsection>
17 <title>Introduction</title>
18 <body>
19
20 <p>
21 Now that your kernel is configured and compiled and the necessary system
22 configuration files are filled in correctly, it is time to install a
23 program that will fire up your kernel when you start the system. Such a
24 program is called a <e>bootloader</e>.
25 </p>
26
27 <p>
28 On Linux/PPC64 we have only yaBoot as a bootloader until grub2 is
29 finished.
30 </p>
31
32 </body>
33 </subsection>
34 </section>
35 <section id="yaboot">
36 <title>Using yaBoot</title>
37 <subsection>
38 <title>Introduction</title>
39 <body>
40
41 <impo>
42 You have to use yaboot-static instead of yaboot, because yaboot won't
43 compile on PPC64.
44 </impo>
45
46 <p>
47 There are two ways to configure yaBoot for your system. You can use the
48 new and improved <c>yabootconfig</c> included with
49 <path>yaboot-1.3.8-r1</path> and later to automatically set up yaboot. If
50 for some reason you do not want to run <c>yabootconfig</c> to
51 automatically set up <path>/etc/yaboot.conf</path> or you are installing Gentoo
52 on a G5 (on which <c>yabootconfig</c> does not always work), you can just edit
53 the sample file already installed on your system.
54 </p>
55
56 <impo>
57 yabootconfig/ybin won't work on IBM. You have to install yaboot another way:
58 <uri link="#yaboot-ibm">Using yaboot on IBM hardware</uri>
59 </impo>
60
61 <note>
62 If your root filesystem uses the JFS filesystem, be sure to add <c>ro</c> as a
63 kernel parameter. JFS must be able to replay its log in read-only mode before it
64 gets mounted read-write.
65 </note>
66
67 <ul>
68 <li><uri link="#yabootconfig">Default: Using yabootconfig</uri></li>
69 <li>
70 <uri link="#manual_yaboot">Alternative: Manual yaBoot Configuration</uri>
71 </li>
72 </ul>
73
74 </body>
75 </subsection>
76 <subsection id="yabootconfig">
77 <title>Default: Using yabootconfig</title>
78 <body>
79
80 <p>
81 <c>yabootconfig</c> will auto-detect the partitions on your machine and will
82 set up dual and triple boot combinations with Linux, Mac OS, and Mac OS
83 X.
84 </p>
85
86 <p>
87 To use <c>yabootconfig</c>, your drive must have a bootstrap partition, and
88 <path>/etc/fstab</path> must be configured with your Linux partitions. Both of
89 these should have been done already in the steps above. To start, ensure that
90 you have the latest version of yaboot installed by running <c>emerge --update
91 yaboot-static</c>. This is necessary as the latest version will be available via
92 Portage, but it may not have made it into the stage files.
93 </p>
94
95 <pre caption = "Installing yaboot-static">
96 # <i>emerge --update yaboot-static</i>
97 </pre>
98
99 <p>
100 Now run <c>yabootconfig</c>. The program will run and it will confirm
101 the location of the bootstrap partition. Type <c>Y</c> if it is correct. If
102 not, double check <path>/etc/fstab</path>. yabootconfig will then scan your
103 system setup, create <path>/etc/yaboot.conf</path> and run <c>mkofboot</c> for
104 you. <c>mkofboot</c> is used to format the bootstrap partition, and install
105 the yaboot configuration file into it.
106 </p>
107
108 <p>
109 You might want to verify the contents of <path>/etc/yaboot.conf</path>. If
110 you make changes to <path>/etc/yaboot.conf</path> (like setting the
111 default/boot OS), make sure to rerun <c>ybin -v</c> to apply changes to the
112 bootstrap partition.
113 </p>
114
115 <p>
116 Now continue with <uri link="#reboot">Rebooting your System</uri>.
117 </p>
118
119 </body>
120 </subsection>
121 <subsection id="manual_yaboot">
122 <title>Alternative: Manual yaBoot Configuration</title>
123 <body>
124
125 <p>
126 First make sure you have the latest <c>yaboot-static</c> installed on your
127 system:
128 </p>
129
130 <pre caption = "Installing yaboot">
131 # <i>emerge --update yaboot-static</i>
132 </pre>
133
134 <p>
135 Below you find a completed <path>yaboot.conf</path> file. Alter it at
136 will.
137 </p>
138
139 <pre caption = "/etc/yaboot.conf">
140 <comment>## /etc/yaboot.conf
141 ##
142 ## run: "man yaboot.conf" for details. Do not make changes until you have!!
143 ## see also: /usr/share/doc/yaboot/examples for example configurations.
144 ##
145 ## For a dual-boot menu, add one or more of:
146 ## bsd=/dev/hdaX, macos=/dev/hdaY, macosx=/dev/hdaZ
147
148 ## our bootstrap partition:</comment>
149
150 boot=/dev/hda2
151
152 <comment>## ofboot is the openfirmware way to specify the bootstrap partition.
153 ## If this isn't defined, yaboot fails on the G5 and some G4s (unless
154 ## you pass the necessary arguments to the mkofboot/ybin program).
155 ## hd:X means /dev/sdaX (or /dev/hdaX).</comment>
156
157 ofboot=hd:2
158
159 <comment>## hd: is open firmware speak for hda</comment>
160 device=hd:
161
162 delay=5
163 defaultos=macosx
164 timeout=30
165 install=/usr/lib/yaboot/yaboot
166 magicboot=/usr/lib/yaboot/ofboot
167
168 <comment>#################
169 ## This section can be duplicated if you have more than one kernel or set of
170 ## boot options - replace 2.6.9 with your kernel-version
171 #################</comment>
172 image=/boot/kernel-2.6.9
173 label=Linux
174 root=/dev/hda3
175 partition=3
176 read-only
177
178 macos=hd:13
179 macosx=hd:12
180 enablecdboot
181 enableofboot
182 </pre>
183
184 <p>
185 Once <path>yaboot.conf</path> is set up the way you want it, you run
186 <c>mkofboot -v</c> to install the settings in the bootstrap partition.
187 <e>Don't forget this!</e> Confirm when <c>mkofboot</c> asks you to create a new
188 filesystem.
189 </p>
190
191 <p>
192 If all goes well, and you have the same
193 options as the sample above, your next reboot will give you a simple,
194 five-entry boot menu. If you update your yaboot config later on, you'll
195 just need to run <c>ybin -v</c> to update the bootstrap partition -
196 <c>mkofboot</c> is for initial setup only.
197 </p>
198
199 <p>
200 For more information on yaboot, take a look at the <uri
201 link="http://penguinppc.org/projects/yaboot">yaboot project</uri>. For
202 now, continue the installation with <uri link="#reboot">Rebooting your
203 System</uri>.
204 </p>
205
206 </body>
207 </subsection>
208 </section>
209 <section id="yaboot-ibm">
210 <title>Using yaboot on IBM hardware</title>
211 <body>
212
213 <p>
214 On IBM hardware you cannot run yabootconfig or ybin. You must proceed with the
215 folowing steps:
216 </p>
217
218 <ul>
219 <li>Install yaboot-static</li>
220 <li>Run 'dd if=/usr/lib/yaboot/yaboot.chrp of=/dev/sdXX' (fill in XX
221 with your disk and partition for the PReP partition; this was in our
222 example /dev/sda1)</li>
223 <li>Next construct your own yaboot.conf file and place into /etc.
224 (Take a look at the config above, look into the man page of
225 yaboot.conf or look at the below yaboot.conf example)</li>
226 <li>Assuming your boot device in OF is pointing to the harddrive you
227 prep boot partition is on then it'll just work, otherwise at IPL time,
228 go into the multiboot menu and set the boot device to the one with
229 your prep boot partition.</li>
230 <li>That's it!</li>
231 </ul>
232
233 <pre caption = "yaboot.conf for IBM hardware">
234 device=disk:
235 partition=2
236 root=/dev/sda2
237 default=2.6.8-gentoo-r3
238 timeout=50
239
240 image=/boot/vmlinux-2.6.8-gentoo-r3
241 label=2.6.8-gentoo-r3
242 append="console=ttyS0,9600"
243 read-only
244 </pre>
245
246 <p>
247 For POWER4, POWER5, and blade-based hardware where the PReP disk partition
248 and the disk partition that contains your kernel are on the same physical disk,
249 you can use a simplified yaboot.conf. The following should be sufficient:
250 </p>
251
252 <pre caption="yaboot.conf for PReP hardware">
253 default = linux
254 timeout = 100
255 image=/boot/vmlinux
256 label=linux
257 read-only
258 root = /dev/sda2
259 append="root=/dev/sda2"
260 </pre>
261
262 <p>
263 To verify that yaboot has been copied to the PReP partition:
264 </p>
265
266 <pre caption="Verifying the yaboot install on PReP">
267 # <i>dd if=/dev/sda1 count=10 | grep ELF</i>
268 Binary file (standard input) matches
269 10+0 records in
270 10+0 records out
271 </pre>
272
273 <p>
274 A match signifies that yaboot was installed correctly.
275 </p>
276
277 </body>
278 </section>
279 <section id="reboot">
280 <title>Rebooting the System</title>
281 <subsection>
282 <body>
283
284 <p>
285 Exit the chrooted environment and unmount all mounted partitions. Then type in
286 that one magical command you have been waiting for: <c>reboot</c>.
287 </p>
288
289 <pre caption="Exiting the chroot, unmounting all partitions and rebooting">
290 # <i>exit</i>
291 ~# <i>cd</i>
292 ~# <i>umount /mnt/gentoo/boot /mnt/gentoo/proc /mnt/gentoo/dev /mnt/gentoo</i>
293 ~# <i>reboot</i>
294 </pre>
295
296 <p>
297 Of course, don't forget to remove the bootable CD, otherwise the CD will be
298 booted again instead of your new Gentoo system.
299 </p>
300
301 <p>
302 Once rebooted in your Gentoo installation, finish up with <uri
303 link="?part=1&amp;chap=11">Finalizing your Gentoo Installation</uri>.
304 </p>
305
306 </body>
307 </subsection>
308 </section>
309
310 </sections>

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