localhost ~ # rm /var/lib/module-rebuild/moduledb
localhost ~ # module-rebuild list
No moduledb found...
Populating moduledb...
** Adding app-crypt/truecrypt-4.2a-r2 to moduledb.
** Adding app-emulation/vmware-modules-1.0.0.15-r1 to moduledb.
** Adding net-wireless/madwifi-ng-0.9.2.1 to moduledb.
** Adding x11-drivers/nvidia-drivers-1.0.9746-r90 to moduledb.