LinuxQuestions.org - ALSA said "could not find module snd"

I just installed alsa-lib-1.0.15,alsa-plugins-1.0.15,alsa-utils-1.0.15.
And I did choose:"Advanced Linux Sound Architecture,Sequencer support,Sequencer dummy client, OSS Mixer API, OSS PCM API,OSS Sequencer API, and Support old ALSA API" in Advanced Linux Sound Arthitecture in my kernel and recompiled it.

I followed the instructions from this page:
http://www.alsa-project.org/main/ind...l#modules.conf

But I got these:

Code:

root [ / ]# modinfo soundcore

modinfo: could not find module soundcore

Code:

root [ / ]# modinfo sound

modinfo: could not find module sound

Code:

root [ / ]# alsaconf

modinfo: could not find module snd

modinfo: could not find module snd

modinfo: could not find module snd

which: no dialog in (/usr/local/sbin:/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin:/usr/X11R6/bin)

which: no whiptail in (/usr/local/sbin:/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin:/usr/X11R6/bin)

Error, dialog or whiptail not found.

I am using LFS and the kernel version is 2.6.22.12, lspci displays:

Code:

00:1b.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 04)

What should I do?
Didn't I turn on the sound support soundcore module? And if not, how can I turn on it?

Thanks.