[Buildroot] [PATCH] fs/cpio: drop static random-seed

[Baruch Siach <baruch@tkos.co.il>]

Hi Peter,

On Tue, Jul 07, 2015 at 01:10:21PM +0200, Peter Korsgaard wrote:
> >>>>> "Baruch" == Baruch Siach <baruch@tkos.co.il> writes:
> 
>  > Initializing the kernel entropy pool in initramfs from a seed file that never
>  > changes doesn't make much sense. Not initializing the entropy pool at all is
>  > better than initializing it from a known seed.
> 
>  > Signed-off-by: Baruch Siach <baruch@tkos.co.il>
> 
> I agree, but why don't we simply drop our static /etc/random-seed from
> the default skeleton instead?

Good idea. /etc/random-seed is less harmful on persistent filesystems, as it 
only affects the first boot. But it probably doesn't do any good either.

In addition to that I think it would also be better not to use 
/etc/random-seed when the filesystem is read-only, even when that file exists. 
Currently /etc/init.d/S20urandom reads /etc/random-seed from a read-only 
filesystem, but doesn't write it, which seems just wrong.

What do you thing?

I'll send patches if everybody agree on the plan.

baruch

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