mirror of
https://github.com/Zeckmathederg/glfs.git
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f45b195302
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@3 af4574ff-66df-0310-9fd7-8a98e5e911e0
190 lines
6.5 KiB
XML
190 lines
6.5 KiB
XML
<sect2>
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<title>Installation of alsa</title>
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<para>Unpack the packages you've downloaded</para>
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<sect3>
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<title>Installation of the driver</title>
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<para><screen><userinput>./configure \
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--with-moddir=/lib/modules/<kernel-version>/kernel/drivers/sound/ \
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--with-kernel=<path-to-kernel-source-tree-to-build-for> \
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--with-sequencer=yes --with-oss=yes \
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--with-cards=<soundcards-to-compile> &&
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make &&
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make install </userinput></screen></para>
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<para>Replace <path-to-kernel-source-tree-to-build-for> and
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<kernel-version> with which the path to the source tree of the
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kernel version you want to build the drivers for (most commonly your
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current version) and the kernel version number respectively. You also
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need to replace <soundcards-to-compile> with the card names
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you need drivers for (read the SOUNDCARDS section below); otherwise
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"./configure --help" gives you a list of
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drivers you can compile.</para>
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<para>There are two ways of setting up the modules. The easiest
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way is the "let the kernel module loader load them automatically"-way,
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the other one is to use the bootscript you'll find in the
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/utils-directory of the driver.</para>
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<para>For both ways, you need to add some lines to /etc/modules.conf:</para>
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<para><screen><userinput>cat >> /etc/modules.conf << "EOF"</userinput>
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alias char-major-116 snd
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options snd snd_major=116 snd_cards_limit=1
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alias snd-card-0 snd-card-<soundcard>
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alias sound-slot-0 snd-card-0
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alias sound-service-0-0 snd-mixer-oss
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alias sound-service-0-3 snd-pcm-oss
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post-install snd-card-<soundcard> /usr/sbin/alsactl restore
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<userinput>EOF</userinput></screen></para>
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<para>Remember to replace <soundcard> with whatever is
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appropriate. Note that if you are going to use the LFS-style alsa
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script we give below, there is no need for the post-install line.</para>
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<para>If you want kmod to automatically load the modules, as long as you
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have the post-install line in modules.conf, you don't need a startup
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script. If on the other hand you want to use an LFS style startup
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script (because you want to perform other operations at startup/shutdown
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or for another reason), you can use this script here:</para>
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<para><screen><userinput>cat > /etc/rc.d/init.d/alsa << "EOF"</userinput>
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#!/bin/sh
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# Begin $rc_base/init.d/alsa
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# Based on sysklogd script from LFS-3.1 and earlier.
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# Rewritten by Gerard Beekmans - gerard@linuxfromscratch.org
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# ALSA specific parts by Mark Hymers - markh@linuxfromscratch.org
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source /etc/sysconfig/rc
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source $rc_functions
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if [ -f /etc/sysconfig/alsa ]
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then
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source /etc/sysconfig/alsa
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fi
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if [ -z "$CONF" ]
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then
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echo "Please create an /etc/sysconfig/alsa file containing"
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echo "a CONF value (usually /etc/asound.conf)"
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exit 1;
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fi
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case "$1" in
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start)
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echo -n "Starting alsa... Restoring volumes..."
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loadproc /usr/sbin/alsactl -f $CONF restore
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#echo -n " Loading MIDI font..."
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#loadproc sfxload $FONT
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;;
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stop)
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echo -n "Stopping alsa... Saving volumes......"
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loadproc /usr/sbin/alsactl -f $CONF store
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#echo -n " Removing MIDI font.........."
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#loadproc sfxload -i
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;;
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restart)
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$0 stop
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/usr/bin/sleep 1
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$0 start
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;;
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*)
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echo "Usage: $0 {start|stop|restart}"
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exit 1
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;;
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esac
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# End $rc_base/init.d/alsa
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<userinput>EOF
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chmod 755 /etc/rc.d/init.d/alsa</userinput></screen></para>
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<para>Note that the Loading and Removing MIDI font lines are commented out.
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This is because they are only needed for certain soundcards and also
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require an additional program (<userinput>sfxload</userinput>). An
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example of a soundcard which needs MIDI fonts loaded in order to play
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MIDI files is the Soundblaster Live! which is based on a emu10k1
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chip.</para>
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<para>If you are using the above script, you will also need
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a <filename>/etc/sysconfig/alsa</filename> file. Create this using
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the following commands:</para>
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<para><screen><userinput>cat > /etc/sysconfig/alsa << "EOF"</userinput>
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# Begin /etc/sysconfig/alsa
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# CONF is where you want the system to store volume settings.
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# /etc/asound.conf is recommended
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CONF=/etc/asound.conf
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# FONT is where your midi font (if any) is stored.
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FONT=/usr/share/8mbgmsfx.sf2
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# End /etc/sysconfig/alsa
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<userinput>EOF</userinput></screen></para>
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<para>Then create the appropriate symlinks:
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<screen><userinput>cd /etc/rc.d/init.d &&
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ln -sf ../init.d/alsa ../rc0.d/K35alsa &&
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ln -sf ../init.d/alsa ../rc1.d/K35alsa &&
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ln -sf ../init.d/alsa ../rc2.d/S40alsa &&
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ln -sf ../init.d/alsa ../rc3.d/S40alsa &&
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ln -sf ../init.d/alsa ../rc4.d/S40alsa &&
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ln -sf ../init.d/alsa ../rc5.d/S40alsa &&
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ln -sf ../init.d/alsa ../rc6.d/K35alsa</userinput></screen></para>
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<para>Beware. All channels of your soundcard are muted by default. You can use
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the <filename>alsamixer</filename> (in alsa-utils, requires alsa-lib) or any
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other OSS mixer program (like kmix, gmix, aumix) to unmute them. We
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recommend that you do this <emphasis>before</emphasis> running the
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script above because otherwise alsactl will complain that it cannot read
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the <filename>/etc/asound.conf</filename> file. You can do this by
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running <userinput>alsamixer</userinput>, setting the volumes and then
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running <userinput>alsactl -f /etc/asound.conf store</userinput>. This
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means that the first time you run the script, it will have a valid
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<filename>asound.conf</filename> file to use.</para>
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<para>If you get an error like
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<screen>alsamixer: failed to open mixer #0/#0: No such file or directory</screen>
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run the snddevices script in the alsa-driver directory. From the
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alsa-driver source directory run:</para>
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<para><screen><userinput>./snddevices</userinput></screen></para>
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</sect3>
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<sect3>
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<title>Installation of the library</title>
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<para>From the alsa-lib source directory, run:</para>
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<para><screen><userinput>./configure &&
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make install</userinput></screen></para>
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</sect3>
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<sect3>
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<title>Installation of the utils</title>
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<para>From the alsa-utils source directory, run:</para>
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<para><screen><userinput>./configure &&
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make install</userinput></screen></para>
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</sect3>
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<sect3>
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<title>Installation of additional packages (alsa-oss-lib and alsa-tools)</title>
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<para><screen><userinput>./configure &&
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make install</userinput></screen></para>
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<para>These commands are all you need to install
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alsa-oss-lib or alsa-tools. Remember oss-lib is only for future
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versions and the alsa-tools are only useful for the owners of very old
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or expensive cards (e.g multichannel cards), so most people
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don't need it.</para>
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</sect3>
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</sect2>
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