[CentOS] erase disk

Thu Sep 26 22:32:40 UTC 2013
Bret Taylor <nobody at snovc.com>

Paul Heinlein <heinlein at madboa.com> wrote:
>On Thu, 26 Sep 2013, SilverTip257 wrote:
>
>> Eh, I don't really think dban is necessary.  Probably more than an 
>> fdisk and creating a file system is overkill.
>
>My policies are work are simple:
>
>  1. Re-use by same employee: stick with filesystem tools.
>  2. Re-use within company: single-pass zeroing of disk.
>  3. Retirement of asset: three-pass of random bits.
>
>I've never seen the need for a seven-pass randomization. If pressed, 
>I'd probably agree that a one-pass zeroing is good enough for just 
>about any situation. Asset retirement isn't a time-sensitive task, 
>however, so I always use a three-pass randomization before it heads 
>out the door.

You all realize that dban only offers 3 passes, unless you pay for it, right? DBAN is easy, that's why I recommended it. 

A fairly simple solution is

dd if=/dev/zero (or urandom) of=/dev/(device) 
-- 
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