[CentOS] help fdisk and dd
John Doe
jdmls at yahoo.com
Thu Mar 4 14:59:58 UTC 2010
From: chloe K <chloekcy2000 at yahoo.ca>
> What is the best practice to remove all data in the disk?
> ls fdisk ok or use dd
Maybe something like (replace the ?):
- fast but not secure:
dd if=/dev/zero of=/dev/?d? bs=4096
- slow but more secure:
dd if=/dev/zero of=/dev/?d? bs=4096
- n times slower but n times more secure:
for ((i=1; i<=n; i++)); do dd if=/dev/zero of=/dev/?d? bs=4096; done
JD
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