[debian] disable pc beeper

Just append one line to /etc/modprobe.d/blacklist :


> echo "blacklist pcspkr" >> /etc/modprobe.d/blacklist


> reboot


Ref:
http://arsgeek.hubpages.com/hub/How-to-turn-off-the-annoying-system-beep-in-linux-DebianUbuntu