Hi, I'm trying tu install skypopen on my centOS server witout success. This is my configuration: virtual xen server on linode.com centos 5.5 32 bit freswitch latest trunk xen-devel given from linode If i try to compile the alsa-driver-1.0.20 modifing the files and lines indicates in the wiki when i do make this is the result: /usr/src/alsa-driver-1.0.20/acore/oss/pcm_oss.c: In function 'snd_pcm_oss_open_file' /usr/src/alsa-driver-1.0.20/acore/oss/pcm_oss.c:2304: error: 'fmode_t' undeclared (first use in this function) /usr/src/alsa-driver-1.0.20/acore/oss/pcm_oss.c:2304: error: (Each undeclared identifier is reported only once /usr/src/alsa-driver-1.0.20/acore/oss/pcm_oss.c:2304: error: for each function it appears in.) If i try to compile the alsa-driver-1.0.20 without any modification and then compile dummy.c, when i try to load snd-dummy module this is the result modprobe snd-dummy WARNING: Error inserting snd_page_alloc (/lib/modules/2.6.18.8-linode22/misc/acore/snd-page-alloc.ko): Invalid module format WARNING: Error inserting snd_timer (/lib/modules/2.6.18.8-linode22/misc/acore/snd-timer.ko): Invalid module format WARNING: Error inserting snd_pcm (/lib/modules/2.6.18.8-linode22/misc/acore/snd-pcm.ko): Invalid module format FATAL: Error inserting snd_dummy (/lib/modules/2.6.18.8-linode22/misc/drivers/snd-dummy.ko): Invalid module format modprobe -f snd-dummy WARNING: Error inserting snd_page_alloc (/lib/modules/2.6.18.8-linode22/misc/acore/snd-page-alloc.ko): Unknown symbol in module, or unknown parameter (see dmesg) WARNING: Error inserting snd_timer (/lib/modules/2.6.18.8-linode22/misc/acore/snd-timer.ko): Unknown symbol in module, or unknown parameter (see dmesg) WARNING: Error inserting snd_pcm (/lib/modules/2.6.18.8-linode22/misc/acore/snd-pcm.ko): Unknown symbol in module, or unknown parameter (see dmesg) FATAL: Error inserting snd_dummy (/lib/modules/2.6.18.8-linode22/misc/drivers/snd-dummy.ko): Unknown symbol in module, or unknown parameter (see dmesg) Any idea? BR - Andrea Sannucci -