Full Disclosure 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 real 0m4.770s user 0m0.016s sys 0m4.513s
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. Wes _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
Current thread:
- Re: Erasing a hard disk easily, (continued)
- Re: Erasing a hard disk easily Larry Apolonio (Jul 14)
- Re: Erasing a hard disk easily Gary E. Miller (Jul 14)
- Re: Erasing a hard disk easily Darren Reed (Jul 15)
- Re: Erasing a hard disk easily Gary E. Miller (Jul 15)
- Re: Erasing a hard disk easily Darren Reed (Jul 16)
- Re: Erasing a hard disk easily Kurt Seifried (Jul 16)
- Re: Erasing a hard disk easily Gary E. Miller (Jul 16)
- Re: Erasing a hard disk easily Dave Horsfall (Jul 15)
- Re: Erasing a hard disk easily Vincent Archer (Jul 15)
- Re: Erasing a hard disk easily José María Mateos (Jul 15)
- Re: Erasing a hard disk easily wszumera (Jul 15)
- Re: Erasing a hard disk easily Maarten (Jul 13)