Mathieu Baudier wrote:
- # shred -vzn 65536 /dev/hda
For future reference, man shred:
NAME shred - overwrite a file to hide its contents, and optionally delete it
SYNOPSIS shred [OPTIONS] FILE [...]
DESCRIPTION Overwrite the specified FILE(s) repeatedly, in order to make it harder for even very expensive hardware probing to recover the data.
And doing that to /dev/hda would destroy everything on the whole drive, not just one partition.