best fedora solution to securely erase folders/clean free space?

Reindl Harald h.reindl at thelounge.net
Sat Mar 30 12:58:30 UTC 2013



Am 30.03.2013 13:39, schrieb M. Fioretti:
> On Sat, Mar 30, 2013 13:41:20 PM +0100, Reindl Harald wrote:
> 
>> if you have a virtual machine with growable disks and delete a lot of
>> data the disk will not get smaller, shrink the disk will not really work
>>
>> after write zeros to the free space in the guest you can successful
>> shrink the virtual disk on the host system
> 
> ok, now I get what you meant, thanks.
> 
> And I also realize I forgot a part in my initial question: how to do
> the same thing with the swap partition? Would this technique still
> work or make the system unusable? (as I said, what I'm looking at is
> how to clean a live, running system, hence the question)

i do not use any swap partition, not needed on machines with 16 GB RAM :-)

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