Jarek, Another approach that is interesting is dkms... http://linux.dell.com/dkms/dkms.html This can be used to automatically rebuild external modules after a kernel upgrade. It requires the kernel-source to be present. I'm using this for some of my in house kernel modules. --Shane ------------------------------------------------------------------------ Shane Canon voice: 510-486-6981 PSDF Project Lead fax: 510-486-7520 National Energy Research Scientific Computing Center 1 Cyclotron Road Mailstop 943-256 Berkeley, CA 94720 [log in to unmask] ------------------------------------------------------------------------