Scrub free disk blocks

[JD]

  On 08/28/2010 11:05 AM, Steven Stern wrote:
> On 08/27/2010 11:25 PM, JD wrote:
>>    Is there a Linux util to scrub free disk blocks and keep everything
>> else intact ??
>>
> This really is an interested thread... but why do you want to scrub free
> blocks?
>
> I can think of a few reasons:
>
> 1) You're running Linux in a virtual machine. Zeroing all free space
> makes it easier to compress the image file.
>
> 2) You've been looking at something "bad" and want to make sure all
> traces of it are gone before the lawyers/cops arrive.
>
> There are probably other good reasons, but I'm stalled out here.
>
>
>
Too dumb a question to respond to.