8 Feb
2016
8 Feb
'16
10:05 p.m.
Wes James wrote:
Is there a utility to zero unused blocks on a disk?
CentOS 6.7/Ext4
I saw zerofree, but I’m not sure it would work on Ext4 or even work on this version of CentOS.
I don't understand the point of doing this. If you want to sanitize the disk, use dban <dban.org>, which surely approaches industry standard for the open source answer.
Just zeroing random blocks? Why? If you want to wipe a specific file, there's shred.
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