I've seen this message durning one reboot (in order to test oss modules load): "/etc/modprobe.conf exists but does not include /etc/modprobe.d/!"
I see that my /etc/modprobe.conf is empty (no idea about the reason) I've added include /etc/modprobe.d and now the system loads oss modules on boot: $ cat /etc/modprobe.conf include /etc/modprobe.d $ lsmod|grep -i oss snd_pcm_oss 38368 0 snd_mixer_oss 15200 1 snd_pcm_oss snd_pcm 68644 3 snd_cmipci,snd_pcm_oss snd_seq_oss 28768 0 snd_seq_midi_event 7008 2 snd_seq_oss,snd_seq_midi snd_seq 45680 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event snd_seq_device 7820 6 snd_opl3_lib,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq snd 47012 16 snd_cmipci,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_opl3_lib,snd_hwdep,snd_mpu401_uart,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device -- Benjamí http://blog.bitassa.cat .