mailing list archives
Re: Erasing a hard disk easily
From: wszumera () chartermi net
Date: Thu, 15 Jul 2004 12:01:30 -0400
On 14 Jul 2004 at 10:05, Maarten wrote:
dd if=/dev/zero of=/dev/hd? ; dd if=/dev/urandom of=/dev/hd?
I agree. But be advised that using /dev/urandom is several orders of
magnitude slower than either /dev/zero or /dev/full, so if you're not
paranoid or the data isn't that sensitive, you might want to opt for only
writing zeros and ones instead...
maarten () cypher:~> time dd if=/dev/urandom of=/dev/null count=10000
10000+0 records in
10000+0 records out
Thanks for the tip. 63mb took 67 minutes just doing \dev\zero on a drive that I am
sending back to maxtor under warranty. This was a usefull thread Box is 800 mhz
AMD. This was the most usefull thread I on full-disclosure I have read this year.
Btw, booting knoppix on a box with framebuffer for video requires something like
knoppix mem=??? where ??? equals memory - memory dedicated to video. For
example, on my 256M box, 256 didn't work but a number low enough to leave out
memory used by frame buffer booted fine.
Full-Disclosure - We believe in it.
RE: Erasing a hard disk easily Ng, Kenneth (US) (Jul 13)
RE: Erasing a hard disk easily Kiley, Patrick M. (IARC) (Jul 13)
RE: Erasing a hard disk easily Kain, Becki \(B.\) (Jul 13)
RE: Erasing a hard disk easily Schmidt, Michael R. (Jul 13)
Re: Erasing a hard disk easily William Knowles (Jul 13)
RE: Erasing a hard disk easily Shagghie (Jul 14)
RE: Erasing a hard disk easily Glenn_Everhart (Jul 15)