Low Level HD Format
Be sure to umount /dev/scN the drive first.
sudo dcfldd if=/dev/urandom of=/dev/scN
Using /dev/urandom will do a better job than /dev/zero, but will take substantially longer to run.
Be sure to umount /dev/scN the drive first.
sudo dcfldd if=/dev/urandom of=/dev/scN
Using /dev/urandom will do a better job than /dev/zero, but will take substantially longer to run.