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#!/sbin/runscript
# script that will mount image with modules
# read kernel options
for i in `cat /proc/cmdline` ; do
case $i in
*=*) eval KOPT_$i ;;
*) eval KOPT_$i=yes ;;
esac
done
find_media() {
ALPINE_DEV=${KOPT_alpine_dev%%:*}
ALPINE_MNT=`awk '/^\/dev\/'$ALPINE_DEV'/ { print $2 }' /etc/fstab`
}
start() {
local rc=
local imgdir=$(dirname ${KOPT_BOOT_IMAGE:-""})
find_media
if [ -z "$ALPINE_DEV" ] ; then
ebegin "Skipping mount media with modules (specify with alpine_dev)"
eend 0
return 0
fi
if [ -n "$KOPT_modloop" ]; then
CMG="$ALPINE_MNT/$KOPT_modloop"
else
CMG=$ALPINE_MNT/$imgdir/modloop.cmg
fi
ebegin "Mounting loopback device for kernel modules"
mount $ALPINE_MNT >/dev/null 2>&1 &&\
mkdir -p /.modloop &&\
if [ ! -f "$CMG" ] ; then
CMG=$ALPINE_MNT/$imgdir/modules.cmg
fi &&\
mount -o loop,ro -t cramfs $CMG /.modloop
rc=$?
if [ "$rc" = 0 ]; then
rm -rf /lib/modules
ln -sf /.modloop/modules /lib
fi
# copy firmware if there are any
if [ -d $ALPINE_MNT/firmware ]; then
mkdir -p /lib/firmware
cp $ALPINE_MNT/firmware/* /lib/firmware/
fi
eend $rc
}
stop() {
find_media
if [ "$ALPINE_DEV" ] ; then
ebegin "Unmounting loopback device for kernel modules"
umount -d /.modloop &&\
umount $ALPINE_MNT 2>/dev/null
eend $?
fi
}
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