Re: growing a luks volume: how to fill it with random data

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Hi Sven and Hendrik!

> create an additional logical volume using all free extend.
> Fill it with random data
> release the extends again and grow the actual volume ...
I also thought of that. Doable.


> Another simple way: enlarge the volume normally and then fill it up
> with dummy files (in the simplest case, use dd if=/dev/zero
> of=dummyfile) until it is absolutely full.
That sounds great! Didn't think of that one. Simple and it must be pretty
fast, too.
This could even become the recommended way to initialize a LUKS partition
after creation, instead of filling it with urandom beforehand.

kind regards for your solutions,
Wolfgang
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