Problem about sound driver on Geode!

I am trying to make the sound work on Geode GX1 based PC014 model.
The io-audio is placed under /sbin and is placed under /lib/dll
I typed the commands as follow:
%io-audio &
%mount -T io-audio /lib/dll/
but the it didn’t work,the command screen is as followed:

io-audio &

163862 running io-audio

163862 exited with status 0

mount -T io-audio /lib/dll/

mount: Can’t mount / (type io-audio)
mount: Possible reason: No such file or directory

cd /dev/snd



Can anyone help me? :open_mouth: