mirror of
https://git.linuxfromscratch.org/lfs.git
synced 2025-01-19 13:37:39 +00:00
665e07b8fc
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@4039 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
113 lines
4.9 KiB
XML
113 lines
4.9 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
|
|
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
|
|
<!ENTITY % general-entities SYSTEM "../general.ent">
|
|
%general-entities;
|
|
]>
|
|
<sect1 id="ch-scripts-console">
|
|
<title>Configuring the Linux console</title>
|
|
<?dbhtml filename="console.html"?>
|
|
|
|
<indexterm zone="ch-scripts-console">
|
|
<primary sortas="d-console">console</primary>
|
|
<secondary>configuring</secondary></indexterm>
|
|
|
|
<para>In this section we will configure the <command>console</command>
|
|
initscript that sets up the keyboard
|
|
map and the console font. If you
|
|
don't need to use any non-ASCII characters
|
|
(British pound and Euro character are not ASCII),
|
|
and your keyboard is a US one, you can skip this section.
|
|
Without the configuration file,
|
|
the <command>console</command> initscript will do nothing.</para>
|
|
|
|
<para>The <command>console</command> script uses the
|
|
<filename>/etc/sysconfig/console</filename>
|
|
as a configuration file. You need to decide which keymap and screen font you
|
|
will use. The language-specific HOWTO can help you.
|
|
A pre-made
|
|
<filename>/etc/sysconfig/console</filename> file with known
|
|
good settings for several countries was installed with the LFS-Bootscripts
|
|
package, and you just have to uncomment
|
|
the relevant section if your country is supported (but read the rest
|
|
of this section anyway).
|
|
If still in doubt,
|
|
look into <filename class="directory">/usr/share/kbd</filename>
|
|
for valid keymaps and screen fonts. Then read the <command>loadkeys</command>
|
|
and <command>setfont</command> manual pages and figure out the correct
|
|
arguments for these programs.
|
|
Once you decided, create the
|
|
configuration file with the following command:</para>
|
|
|
|
<screen><userinput>cat >/etc/sysconfig/console <<"EOF"
|
|
KEYMAP="<replaceable>[arguments for loadkeys]</replaceable>"
|
|
FONT="<replaceable>[arguments for setfont]</replaceable>"
|
|
EOF</userinput></screen>
|
|
|
|
<para>E.g., for Spanish users who also want to use the Euro character
|
|
(accessible by pressing AltGr+E),
|
|
the following settings are correct:</para>
|
|
|
|
<screen><userinput>cat >/etc/sysconfig/console <<"EOF"
|
|
KEYMAP="es euro2"
|
|
FONT="lat9-16 -u iso01"
|
|
EOF</userinput></screen>
|
|
|
|
<note><para>The FONT line above is correct only for the ISO-8859-15
|
|
character set. If you prefer ISO-8859-1 and therefore use a pound sign
|
|
instead of Euro, the correct FONT line is:</para>
|
|
|
|
<screen><userinput>FONT="lat1-16"</userinput></screen></note>
|
|
|
|
<para>If the KEYMAP or FONT variable is not set, the
|
|
<command>console</command> initscript will not run the corresponding
|
|
program.</para>
|
|
|
|
<para>In some keymaps, the Backspace and Delete keys send characters
|
|
different form ones in the default keymap built into the kernel.
|
|
This confuses some applications, e.g., <application>Emacs</application>
|
|
displays its help (instead of erasing the character before the cursor)
|
|
when you press Backspace. To check if your keymap is affected (this works
|
|
only for i386 keymaps):</para>
|
|
|
|
<screen><userinput>zgrep '\W14\W' <replaceable>[/path/to/your/keymap]</replaceable></userinput></screen>
|
|
|
|
<para>If you see that keycode 14 is Backspace and not Delete,
|
|
create the following keymap snippet to fix this issue:</para>
|
|
|
|
<screen><userinput>mkdir -p /etc/kbd && cat >/etc/kbd/bs-sends-del <<"EOF"
|
|
keycode 14 = Delete Delete Delete Delete
|
|
alt keycode 14 = Meta_Delete
|
|
altgr alt keycode 14 = Meta_Delete
|
|
keycode 111 = Remove
|
|
altgr control keycode 111 = Boot
|
|
control alt keycode 111 = Boot
|
|
altgr control alt keycode 111 = Boot
|
|
EOF</userinput></screen>
|
|
|
|
<para>Then tell the <command>console</command> script to load this snippet
|
|
after the main keymap:</para>
|
|
|
|
<screen><userinput>cat >>/etc/sysconfig/console <<"EOF"
|
|
KEYMAP_CORRECTION="/etc/kbd/bs-sends-del"
|
|
EOF</userinput></screen>
|
|
|
|
<para>If you want to compile your keymap directly into the kernel instead of
|
|
setting it every time from the <command>console</command> bootscript, then
|
|
instructions are given in <xref linkend="ch-bootable-kernel"/>. Doing this
|
|
ensures that your keyboard will always work as expected, even when you boot into
|
|
maintenance mode (by passing <parameter>init=/bin/sh</parameter> to the kernel),
|
|
as in that situation, the <command>console</command> bootscript won't be run.
|
|
Additionally, the kernel will not set the screen font automatically. Again,
|
|
this shouldn't pose too many problems as ASCII characters will still be handled
|
|
correctly, and it is unlikely that you would need to rely on non-ASCII
|
|
characters whilst in maintenance mode.</para>
|
|
|
|
<para>Since the kernel will set up the keymap, you can omit the KEYMAP variable
|
|
from the <filename>/etc/sysconfig/console</filename> configuration file. If you
|
|
wish, you can still have it, this isn't going to hurt you. Keeping it could even
|
|
be beneficial, in case you run a lot of different kernels and can't be sure that
|
|
the keymap is compiled into every one of them.</para>
|
|
|
|
</sect1>
|
|
|