en/handbook/hb-install-alpha-bootloader.xml

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<!DOCTYPE sections SYSTEM "/dtd/book.dtd">

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<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/draft/hb-install-alpha-bootloader.xml,v 1.7 2004/07/29 18:24:29 swift Exp $ -->

<sections>
<section>
<title>Making your Choice</title>
<subsection>
<title>Introduction</title>
<body>

<p>
Now that your kernel is configured and compiled and the necessary system
configuration files are filled in correctly, it is time to install a
program that will fire up your kernel when you start the system. Such a
program is called a <e>bootloader</e>. 
</p>

<p>
Several bootloaders exist for Linux/Alpha. You must choose one of the supported
bootloaders, not all. You have the choice between <uri link="#aboot">aBoot</uri>
and <uri link="#milo">MILO</uri>.
</p>

</body>
</subsection>
</section>
<section id="aboot">
<title>Default: Using aboot</title>
<body>

<p>
We first install aboot on our system. Of course we use <c>emerge</c> to
do so:
</p>

<pre caption = "Installing aboot">
# <i>emerge --usepkg aboot</i>
</pre>

<p>
The next step is to make our bootdisk bootable. This will start
<c>aboot</c> when you boot your system. We make our bootdisk bootable by
writing the <c>aboot</c> bootloader to the start of the disk.
</p>

<pre caption = "Making your bootdisk bootable">
# <i>swriteboot -f3 /dev/sda /boot/bootlx</i> 
# <i>abootconf /dev/sda 2</i>
</pre>

<note>
If you use a different partitioning scheme than the one we use
throughout this chapter, you have to change the commands accordingly.
Please read the appropriate manual pages (<c>man 8 swriteboot</c> and
<c>man 8 abootconf</c>).
</note>

<p>
Additionally, you can make Gentoo boot more easily by setting up the
aboot configuration file and SRM boot_osflags variable. You will need to
make sure that the bootdef_dev is also properly set (easier to do at the
console than from Linux).
</p>

<pre caption = "Improve booting Gentoo">
# <i>echo '0:2/boot/vmlinux.gz root=/dev/sda2' &gt; /etc/aboot.conf</i>
# <i>echo -n 0 &gt; /proc/srm_environment/named_variables/boot_osflags</i>
# <i>echo -n '' &gt; /proc/srm_environment/named_variables/boot_file</i>
</pre>

<p>
If you're installing using a serial console, don't forget to include
the serial console boot flag in <path>aboot.conf</path>. See 
<path>/etc/aboot.conf.example</path> for some further information. 
</p>

<p>
Aboot is now configured and ready to use. Continue with <uri
link="#reboot">Rebooting the System</uri>.
</p>

</body>
</section>
<section id="milo">
<title>Alternative: Using MILO</title>
<body>

<p>
Before continuing, you should decide on how to use MILO. In this
section, we will assume that you want to make a MILO boot floppy. If you
are going to boot from an MS-DOS partition on your hard disk, you should
amend the commands appropriately.
</p>

<p>
To install MILO, we use <c>emerge</c>.
</p>

<pre caption = "Installing MILO">
# <i>emerge --usepkg milo</i>
</pre>

<p>
After MILO has been installed, the MILO images should be in
<path>/opt/milo</path>. The commands below make a bootfloppy for use
with MILO. Remember to use the correct image for your Alpha-system.
</p>

<pre caption = "Installing MILO on a floppy">
<comment>(First insert a blank floppy)</comment>
# <i>fdformat /dev/fd0</i>
# <i>mformat a:</i>
# <i>mcopy /opt/milo/milo-2.2-18-gentoo-ruffian a:\milo</i>
# <i>mcopy /opt/milo/linload.exe a:\lilnload.exe</i>
<comment>(Only if you have a Ruffian:</comment>     
  # <i>mcopy /opt/milo/ldmilo.exe a:\ldmilo.exe</i>
<comment>)</comment>
# <i>echo -ne '\125\252' | dd of=/dev/fd0 bs=1 seek=510 count=2</i>
</pre>

<p>
Your MILO boot floppy is now ready to boot Gentoo Linux. You may need to
set environment variables in your ARCS Firmware to get MILO to start;
this is all explained in the <uri
link="http://tldp.org/HOWTO/MILO-HOWTO/">MILO-HOWTO</uri> with some examples 
on common systems, and examples of the commands to use in interactive mode.
</p>

<p>
Not reading the <uri link="http://tldp.org/HOWTO/MILO-HOWTO/">MILO-HOWTO</uri> 
is a <e>bad</e> idea.
</p>

<p>
Now continue with <uri link="#reboot">Rebooting the System</uri>.
</p>

</body>
</section>
<section id="rebooting">
<title>Rebooting the System</title>
<subsection>
<body>

<p>
Exit the chrooted environment and unmount all mounted partitions. Then type in 
that one magical command you have been waiting for: <c>reboot</c>.
</p>

<pre caption="Exiting the chroot, unmounting all partitions and rebooting">
# <i>exit</i>
cdimage ~# <i>umount /mnt/gentoo/boot /mnt/gentoo/proc /mnt/gentoo</i>
cdimage ~# <i>reboot</i>
</pre>

<p>
Of course, don't forget to remove the bootable CD, otherwise the CD will be
booted again instead of your new Gentoo system.
</p>

<p>
Once rebooted in your Gentoo installation, finish up with <uri
link="?part=1&amp;chap=11">Finalizing your Gentoo Installation</uri>.
</p>

</body>
</subsection>
</section>

</sections>
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	<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/draft/hb-install-alpha-bootloader.xml,v 1.7 2004/07/29 18:24:29 swift Exp $ -->
8
9	<sections>
10	<section>
11	<title>Making your Choice</title>
12	<subsection>
13	<title>Introduction</title>
14	<body>
15
16	<p>
17	Now that your kernel is configured and compiled and the necessary system
18	configuration files are filled in correctly, it is time to install a
19	program that will fire up your kernel when you start the system. Such a
20	program is called a <e>bootloader</e>.
21	</p>
22
23	<p>
24	Several bootloaders exist for Linux/Alpha. You must choose one of the supported
25	bootloaders, not all. You have the choice between <uri link="#aboot">aBoot</uri>
26	and <uri link="#milo">MILO</uri>.
27	</p>
28
29	</body>
30	</subsection>
31	</section>
32	<section id="aboot">
33	<title>Default: Using aboot</title>
34	<body>
35
36	<p>
37	We first install aboot on our system. Of course we use <c>emerge</c> to
38	do so:
39	</p>
40
41	<pre caption = "Installing aboot">
42	# <i>emerge --usepkg aboot</i>
43	</pre>
44
45	<p>
46	The next step is to make our bootdisk bootable. This will start
47	<c>aboot</c> when you boot your system. We make our bootdisk bootable by
48	writing the <c>aboot</c> bootloader to the start of the disk.
49	</p>
50
51	<pre caption = "Making your bootdisk bootable">
52	# <i>swriteboot -f3 /dev/sda /boot/bootlx</i>
53	# <i>abootconf /dev/sda 2</i>
54	</pre>
55
56	<note>
57	If you use a different partitioning scheme than the one we use
58	throughout this chapter, you have to change the commands accordingly.
59	Please read the appropriate manual pages (<c>man 8 swriteboot</c> and
60	<c>man 8 abootconf</c>).
61	</note>
62
63	<p>
64	Additionally, you can make Gentoo boot more easily by setting up the
65	aboot configuration file and SRM boot_osflags variable. You will need to
66	make sure that the bootdef_dev is also properly set (easier to do at the
67	console than from Linux).
68	</p>
69
70	<pre caption = "Improve booting Gentoo">
71	# <i>echo '0:2/boot/vmlinux.gz root=/dev/sda2' > /etc/aboot.conf</i>
72	# <i>echo -n 0 > /proc/srm_environment/named_variables/boot_osflags</i>
73	# <i>echo -n '' > /proc/srm_environment/named_variables/boot_file</i>
74	</pre>
75
76	<p>
77	If you're installing using a serial console, don't forget to include
78	the serial console boot flag in <path>aboot.conf</path>. See
79	<path>/etc/aboot.conf.example</path> for some further information.
80	</p>
81
82	<p>
83	Aboot is now configured and ready to use. Continue with <uri
84	link="#reboot">Rebooting the System</uri>.
85	</p>
86
87	</body>
88	</section>
89	<section id="milo">
90	<title>Alternative: Using MILO</title>
91	<body>
92
93	<p>
94	Before continuing, you should decide on how to use MILO. In this
95	section, we will assume that you want to make a MILO boot floppy. If you
96	are going to boot from an MS-DOS partition on your hard disk, you should
97	amend the commands appropriately.
98	</p>
99
100	<p>
101	To install MILO, we use <c>emerge</c>.
102	</p>
103
104	<pre caption = "Installing MILO">
105	# <i>emerge --usepkg milo</i>
106	</pre>
107
108	<p>
109	After MILO has been installed, the MILO images should be in
110	<path>/opt/milo</path>. The commands below make a bootfloppy for use
111	with MILO. Remember to use the correct image for your Alpha-system.
112	</p>
113
114	<pre caption = "Installing MILO on a floppy">
115	<comment>(First insert a blank floppy)</comment>
116	# <i>fdformat /dev/fd0</i>
117	# <i>mformat a:</i>
118	# <i>mcopy /opt/milo/milo-2.2-18-gentoo-ruffian a:\milo</i>
119	# <i>mcopy /opt/milo/linload.exe a:\lilnload.exe</i>
120	<comment>(Only if you have a Ruffian:</comment>
121	# <i>mcopy /opt/milo/ldmilo.exe a:\ldmilo.exe</i>
122	<comment>)</comment>
123	# <i>echo -ne '\125\252' \| dd of=/dev/fd0 bs=1 seek=510 count=2</i>
124	</pre>
125
126	<p>
127	Your MILO boot floppy is now ready to boot Gentoo Linux. You may need to
128	set environment variables in your ARCS Firmware to get MILO to start;
129	this is all explained in the <uri
130	link="http://tldp.org/HOWTO/MILO-HOWTO/">MILO-HOWTO</uri> with some examples
131	on common systems, and examples of the commands to use in interactive mode.
132	</p>
133
134	<p>
135	Not reading the <uri link="http://tldp.org/HOWTO/MILO-HOWTO/">MILO-HOWTO</uri>
136	is a <e>bad</e> idea.
137	</p>
138
139	<p>
140	Now continue with <uri link="#reboot">Rebooting the System</uri>.
141	</p>
142
143	</body>
144	</section>
145	<section id="rebooting">
146	<title>Rebooting the System</title>
147	<subsection>
148	<body>
149
150	<p>
151	Exit the chrooted environment and unmount all mounted partitions. Then type in
152	that one magical command you have been waiting for: <c>reboot</c>.
153	</p>
154
155	<pre caption="Exiting the chroot, unmounting all partitions and rebooting">
156	# <i>exit</i>
157	cdimage ~# <i>umount /mnt/gentoo/boot /mnt/gentoo/proc /mnt/gentoo</i>
158	cdimage ~# <i>reboot</i>
159	</pre>
160
161	<p>
162	Of course, don't forget to remove the bootable CD, otherwise the CD will be
163	booted again instead of your new Gentoo system.
164	</p>
165
166	<p>
167	Once rebooted in your Gentoo installation, finish up with <uri
168	link="?part=1&chap=11">Finalizing your Gentoo Installation</uri>.
169	</p>
170
171	</body>
172	</subsection>
173	</section>
174
175	</sections>