1.$df
find out which hd has the root partition, lets say its, /dev/hda
2.#dd if=/dev/zero of=/dev/hda bs=512 count=1
you're done.
find out which hd has the root partition, lets say its, /dev/hda
2.#dd if=/dev/zero of=/dev/hda bs=512 count=1
you're done.