Re: Wiping an unencrypted SSD in preparation for encryption

[David Christensen <dpchrist@holgerdanske.com>]

On 6/10/21 11:49 PM, Reco wrote:
> 	Hi.
>
> On Thu, Jun 10, 2021 at 11:43:12PM -0700, David Christensen wrote:
> > I don't bother with the 'discard' option in /etc/fstab, but perhaps I
> > should.  The fstab(5) and mount(8) manual pages are unclear if
> > 'discard' applies to swap or ext4.
>
> swapon(8):
>
>     -d, --discard[=policy]
> 	  Enable  swap  discards ... The /etc/fstab mount options discard,
> discard=once, or discard=pages may also be used to enable discard flags.
>
>
> Therefore 'discard' can be applied to both ext4 and swap.

Thank you for the clarification regarding trim and swap.


Where do you see the information for ext4?


David