On Wednesday 14 July 2004 04:23, Aditya, ALD [ Aditya Lalit Deshmukh ] wrote: > > I'm guessing that drilling a hole in the case, pouring in some sand and > > firing up the disk would probably do a good job of rendering the data > > non-readable too ;> > > since the original poster only wanted to clean up the harddisk for > donations so that no one can read the disks I think the Linux approach is > the best one > > > 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... [EMAIL PROTECTED]:~> 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 [EMAIL PROTECTED]:~> time dd if=/dev/zero of=/dev/null count=10000 10000+0 records in 10000+0 records out real 0m0.269s user 0m0.020s sys 0m0.019s Maarten _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
