mingdao@silas:~$ ls -l /etc/modprobe.d/modprobe.conf
lrwxrwxrwx 1 root root 16 2008-02-11 07:57 /etc/modprobe.d/modprobe.conf -> ../modprobe.conf
mingdao@silas:~$ vim /etc/modprobe.d/modprobe.conf
mingdao@silas:~$ cat /etc/modprobe.d/modprobe.conf
# /etc/modprobe.conf (old location for Linux 2.6+ config)
#
# The use of this config file is deprecated.
# Instead, create files in the /etc/modprobe.d/ directory
# containing modprobe options.
#
# For more information, see "man modprobe.conf".