SSD drives

[Michal Schmidt]

On 05/24/2012 03:20 PM, Gerry Reno wrote:
> I also read here:
> http://ask.fedoraproject.org/question/909/enabling-trimdiscard-on-f16-using-lvm-on-luks
> about using TRIM with LUKS.
>
> Since I'm putting an SSD in my laptop this is important because the
> laptop drive must be encrypted.
>
> So is F17 going to support TRIM w/LUKS automatically?
>
> Or do we need to perform some special configuration to get TRIM
> w/LUKS?  (Yes, I understand some attacker might be able to guess my
> filesystem type due to erased blocks - seems very low risk though).

To use this feature, you can specify the option "allow-discards" in 
/etc/crypttab. You need systemd >= 44-11, currently in updates-testing.

Michal