Hi, I am trying to follow this wiki: http://wiki.freeswitch.org/wiki/Skypiax_Skype_Endpoint_and_Trunk to setup FS and Skypopen on Ubuntu 8.04(64bit server inside virualbox). There is one step asks me to build snd_dummy: http://wiki.freeswitch.org/wiki/Skypopen_Skype_Endpoint_and_Trunk#ALSA_and_t... The section is like below: Ubuntu, Debian Note, Ubuntu may have alsa sound drivers installed at /lib/modules/<your kernel version>/ubuntu/sound/..., you may need to remove the dir to allow modprobe search from the default place: /lib/modules/<your kernel verision>/kernel/sound/ (don't forget to rerun /sbin/depmod after removing the old sound directory. Eg: /sbin/depmod -a 2.6.24-24-server). ./configure --with-redhat=no \ --with-cards=dummy,usb-audio,hda-intel,hrtimer,rtctimer \ --with-card-options=all make && make install After the first *make && make install*, copy mod_skypopen/configs/alsa/dummy.c to alsa-driver-1.0.20sound/drivers/dummy.c . make && make install #again :) The problem is after I did all of them, when I entered modprobe snd_dummy, it always crashed and returned as "killed" on my terminal, I could see it dumped out a huge block or data(numbers, etc) on the host but don't understand the meaning. While if I used the original dummy.c inside alsa-driver-1.0.20, it worked fine. Besides, the default ubuntu installation doesn't include kernal dev and source, so I did one more step(or it cannot build alsa). Did anyone try the same and get it working? Thanks! Jian