root@freeswitch:/# modprobe snd_dummy WARNING: Error inserting snd_page_alloc (/lib/modules/2.6.32-27-generic-pae/kern el/sound/acore/snd-page-alloc.ko): Unknown symbol in module, or unknown paramete r (see dmesg) WARNING: Error inserting snd_timer (/lib/modules/2.6.32-27-generic-pae/kernel/so und/acore/snd-timer.ko): Unknown symbol in module, or unknown parameter (see dme sg) WARNING: Error inserting snd_pcm (/lib/modules/2.6.32-27-generic-pae/kernel/soun d/acore/snd-pcm.ko): Unknown symbol in module, or unknown parameter (see dmesg) FATAL: Error inserting snd_dummy (/lib/modules/2.6.32-27-generic-pae/kernel/soun d/drivers/snd-dummy.ko): Unknown symbol in module, or unknown parameter (see dme sg)
for me this error sounds like the module was not built against the correct kernel sources. - Thomas