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2<!DOCTYPE sections SYSTEM "/dtd/book.dtd"> 2<!DOCTYPE sections SYSTEM "/dtd/book.dtd">
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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-mips-kernel.xml,v 1.18 2005/11/21 15:37:12 neysx Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-mips-kernel.xml,v 1.19 2006/01/08 14:05:29 neysx Exp $ -->
8 8
9<sections> 9<sections>
10 10
11<version>1.14</version> 11<version>1.15</version>
12<date>2005-11-21</date> 12<date>2006-01-06</date>
13 13
14<section> 14<section>
15<title>Timezone</title> 15<title>Timezone</title>
16<body> 16<body>
17 17
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48source for the MIPS architecture) and <c>mips-prepatch-sources</c> (prerelease 48source for the MIPS architecture) and <c>mips-prepatch-sources</c> (prerelease
49kernel tree). 49kernel tree).
50</p> 50</p>
51 51
52<p> 52<p>
53Choose your kernel source and install it using <c>emerge</c>. 53Choose your kernel source and install it using <c>emerge</c>. Of course
54Of course substitute with your choice of sources, this is merely an example. 54substitute with your choice of sources, this is merely an example. The
55The <c>USE="-doc"</c> is necessary to avoid installing xorg-x11 or other 55<c>USE="-doc"</c> is necessary to avoid installing xorg-x11 or other
56dependencies at this point: 56dependencies at this point. <c>USE="symlink"</c> is not necessary for a new
57install, but ensures proper creation of the <path>/usr/src/linux</path>
58symlink.
57</p> 59</p>
58 60
59<note> 61<note>
60Special patches are needed to make a kernel work on Cobalt servers. The 62Special patches are needed to make a kernel work on Cobalt servers. The
61<c>cobalt</c> USE flag must be defined in order to grab the necessary patches 63<c>cobalt</c> USE flag must be defined in order to grab the necessary patches
62and apply them. 64and apply them.
63</note> 65</note>
64 66
65<pre caption="Installing a kernel source"> 67<pre caption="Installing a kernel source">
66<comment>(For SGI machines)</comment> 68<comment>(For SGI machines)</comment>
67# <i>USE="-doc" emerge mips-sources</i> 69# <i>USE="-doc symlink" emerge mips-sources</i>
68 70
69<comment>(For Cobalt machines)</comment> 71<comment>(For Cobalt machines)</comment>
70# <i>mkdir -p /etc/portage</i> 72# <i>mkdir -p /etc/portage</i>
71# <i>echo "sys-kernel/mips-sources cobalt" &gt;&gt; /etc/portage/package.use</i> 73# <i>echo "sys-kernel/mips-sources cobalt" &gt;&gt; /etc/portage/package.use</i>
72# <i>USE="-doc" emerge mips-sources</i> 74# <i>USE="-doc symlink" emerge mips-sources</i>
73</pre> 75</pre>
74 76
75<p> 77<p>
76When you take a look in <path>/usr/src</path> you should see a symlink called 78When you take a look in <path>/usr/src</path> you should see a symlink called
77<path>linux</path> pointing to your kernel source: 79<path>linux</path> pointing to your kernel source. In this case, the installed
80kernel source points to <c>mips-sources-2.4.24</c>. Your version may be
81different, so keep this in mind.
78</p> 82</p>
79 83
80<pre caption="Viewing the kernel source symlink"> 84<pre caption="Viewing the kernel source symlink">
81# <i>ls -l /usr/src/linux</i> 85# <i>ls -l /usr/src/linux</i>
82lrwxrwxrwx 1 root root 12 Oct 13 11:04 /usr/src/linux -&gt; linux-2.4.24 86lrwxrwxrwx 1 root root 12 Oct 13 11:04 /usr/src/linux -&gt; linux-2.4.24
83</pre>
84
85<p>
86If this isn't the case (i.e. the symlink points to a different kernel source)
87change the symlink before you continue:
88</p>
89
90<pre caption="Changing the kernel source symlink">
91# <i>rm /usr/src/linux</i>
92# <i>cd /usr/src</i>
93# <i>ln -s linux-2.4.24 linux</i>
94</pre> 87</pre>
95 88
96<p> 89<p>
97Now it is time to configure and compile your kernel source. 90Now it is time to configure and compile your kernel source.
98</p> 91</p>
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194When the kernel has finished compiling, copy the kernel image to 187When the kernel has finished compiling, copy the kernel image to
195<path>/boot</path>. 188<path>/boot</path>.
196</p> 189</p>
197 190
198<note> 191<note>
199On Cobalt servers, the bootloader will expect to see a compressed kernelimage. 192On Cobalt servers, the bootloader will expect to see a compressed kernel image.
200Remember to <c>gzip -9</c> the file once it is in <path>/boot</path>. 193Remember to <c>gzip -9</c> the file once it is in <path>/boot</path>. In the
194following example, replace <path>&lt;kernel-version&gt;</path> with your kernel
195version.
201</note> 196</note>
202 197
203<pre caption="Installing the kernel"> 198<pre caption="Installing the kernel">
204# <i>cp vmlinux /boot/kernel-2.4.24</i> 199# <i>cp vmlinux /boot/&lt;kernel-version&lt;</i>
205<comment>(Cobalt Servers -- Compressing the kernel image)</comment> 200<comment>(Cobalt Servers -- Compressing the kernel image)</comment>
206# <i>gzip -9v /boot/kernel-2.4.24</i> 201# <i>gzip -9v /boot/&lt;kernel-version&lt;</i>
207</pre>
208
209<p>
210It is also wise to copy over your kernel configuration file to
211<path>/boot</path>, just in case :)
212</p>
213
214<pre caption="Backing up your kernel configuration">
215# <i>cp .config /boot/config-2.4.24</i>
216</pre> 202</pre>
217 203
218<!-- 204<!--
219Moot point, now that we use arcboot on SGI, and CoLo on Cobalts 205Moot point, now that we use arcboot on SGI, and CoLo on Cobalts
220<p> 206<p>
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