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|
#!/bin/sh
if test -f /etc/oss.conf
then
. /etc/oss.conf
else
OSSLIBDIR=/usr/lib/oss
fi
# This script wipes out the previously installed sound drivers
# from the system.
# Backup all kernel sound drivers (ALSA) and remove the kernel/sound
# directory from the system. Untar the backup package to return ALSA
# back in business.
if test -x /sbin/chkconfig
then
/sbin/chkconfig alsasound off > /dev/null 2>&1
elif test -x /usr/sbin/update-rc.d
then
/usr/sbin/update-rc.d -f alsa-utils remove > /dev/null 2>&1
elif test -x /usr/sbin/alsa
then
/usr/sbin/alsa force-unload > /dev/null 2>&1
fi
if test -d /lib/modules/`uname -r`/kernel/sound
then
if ! test -f /lib/modules/`uname -r`/sound-preoss.tar.bz2
then
(cd /lib/modules/`uname -r`; tar cfj /lib/modules/`uname -r`/sound-preoss.tar.bz2 kernel/sound)
fi
rm -rf /lib/modules/`uname -r`/kernel/sound
depmod -a
fi
# Kill all applications using ALSA or OSS/Free devices
# We have to use ugly replacement of fuser since this command got broken
# in some Linux recent distributions.
KILL=0
for n in /proc/[0-9]*
do
PID=`basename $n`
if test "`ls -l $n/fd/* 2>/dev/null|grep /dev/snd` " != " "
then
KILL=1
fi
if test "`ls -l $n/fd/* 2>/dev/null|grep /dev/mixer` " != " "
then
KILL=1
fi
done
if ! test -d $OSSLIBDIR/save
then
mkdir $OSSLIBDIR/save
fi
if test "$KILL " = "1 "
then
echo killing
rm -f /dev/mixer.old
mv /dev/mixer /dev/mixer.old 2>/dev/null
#if test -d /dev/snd
#then
#(cd /;tar cfj $OSSLIBDIR/save/alsadevs.tar.bz2 dev/snd)
#fi
#mv /dev/snd /dev/snd.osssave
#fuser -k -s /dev/mixer.old /dev/snd.osssave/*
fi
# Remove all loaded ALSA modules
SOUNDDEVS=
if test -f /dev/mixer.old
then
SOUNDDEVS="$SOUNDDEVS /dev/mixer.old"
fi
if test -d /dev/snd.osssave
then
SOUNDDEVS="$SOUNDDEVS /dev/snd.osssave/*"
fi
for timeout in 0 1 2 3 4 5 6 7 8 9 10 11
do
if test "`cat /proc/modules|grep ^snd_|sed 's/ .*//'` " = " "
then
break
fi
if test $timeout -gt 10
then
echo Cannot unload the ALSA modules. Apparently there is some
echo application keeping them busy.
echo Please reboot your system and try to start OSS again.
ps ax
lsmod
cat /proc/devices
cat /proc/interrupts
exit 1
fi
if test "$SOUNDDEVS " != " "
then
fuser -s -9 $SOUNDDEVS
else
echo Cannot find any processes using the conflicting sound driver
fi
for n in `cat /proc/modules|grep ^snd_|sed 's/ .*//'`
do
rmmod $n
#rmmod $n >/dev/null 2>&1
done
sleep 1
done
rmmod snd > /dev/null 2>&1
# Remove soundcore
rmmod soundcore > /dev/null 2>&1
rm -f /dev/mixer.old
if cat /proc/devices|grep -q '^ *14 '
then
echo There still appears to be another sound driver hanging around
lsmod
cat /proc/devices|grep '^ *14 '
cat /proc/interrupts
exit 1
fi
for n in /dev/sndstat /dev/mixer* /dev/dsp* /dev/midi* /dev/sequencer /dev/music
do
if readlink $n >/dev/null 2>&1
then # Symbolic link
if readlink $n | grep -q asound
then # Link to ALSA devices
rm -f $n
fi
fi
done
# Disable automatic startup of ALSA during system bootup
if test "`ls /etc/rc.d/rc*/*alsasound*` " != " " > /dev/null 2>&1
then
(cd /;tar cfj $OSSLIBDIR/save/alsarc/tar.bz2 etc/rc.d/rc*/*alsasound*)
rm -f /etc/rc.d/rc*/*alsasound*
fi > /dev/null 2>&1
exit 0
|
