Re: Wiping an unencrypted SSD in preparation for encryption

From	David Christensen <dpchrist@holgerdanske.com>
Newsgroups	linux.debian.user
Subject	Re: Wiping an unencrypted SSD in preparation for encryption
Date	2021-06-11 15:00 +0200
Message-ID	<CoOVs-1jI-3@gated-at.bofh.it> (permalink)
References	<CoH7z-5f5-3@gated-at.bofh.it> <CoJ9o-6nw-3@gated-at.bofh.it> <CoJ9o-6nw-1@gated-at.bofh.it>
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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

Thread

Wiping an unencrypted SSD in preparation for encryption David Wright <deblis@lionunicorn.co.uk> - 2021-06-11 06:40 +0200
  Re: Wiping an unencrypted SSD in preparation for encryption Jeremy Ardley <jeremy@ardley.org> - 2021-06-11 06:50 +0200
  Re: Wiping an unencrypted SSD in preparation for encryption songbird <songbird@anthive.com> - 2021-06-11 07:00 +0200
  Re: Wiping an unencrypted SSD in preparation for encryption David Christensen <dpchrist@holgerdanske.com> - 2021-06-11 08:50 +0200
    Re: Wiping an unencrypted SSD in preparation for encryption Reco <recoverym4n@enotuniq.net> - 2021-06-11 08:50 +0200
      Re: Wiping an unencrypted SSD in preparation for encryption David Christensen <dpchrist@holgerdanske.com> - 2021-06-11 15:00 +0200
        Re: Wiping an unencrypted SSD in preparation for encryption Reco <recoverym4n@enotuniq.net> - 2021-06-11 15:10 +0200
          Re: Wiping an unencrypted SSD in preparation for encryption David Christensen <dpchrist@holgerdanske.com> - 2021-06-13 00:00 +0200
      Re: Wiping an unencrypted SSD in preparation for encryption rhkramer@gmail.com - 2021-06-11 17:10 +0200
        Re: Wiping an unencrypted SSD in preparation for encryption Reco <recoverym4n@enotuniq.net> - 2021-06-11 17:20 +0200
    Re: Wiping an unencrypted SSD in preparation for encryption David Wright <deblis@lionunicorn.co.uk> - 2021-06-15 07:10 +0200
      Re: Wiping an unencrypted SSD in preparation for encryption Stefan Monnier <monnier@iro.umontreal.ca> - 2021-06-15 17:00 +0200
  Re: Wiping an unencrypted SSD in preparation for encryption "Andrew M.A. Cater" <amacater@einval.com> - 2021-06-11 12:00 +0200
  Re: Wiping an unencrypted SSD in preparation for encryption Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-11 17:00 +0200
    Re: Wiping an unencrypted SSD in preparation for encryption Reco <recoverym4n@enotuniq.net> - 2021-06-11 17:20 +0200
      Re: Wiping an unencrypted SSD in preparation for encryption Michael Stone <mstone@debian.org> - 2021-06-11 20:40 +0200
    Re: Wiping an unencrypted SSD in preparation for encryption David Christensen <dpchrist@holgerdanske.com> - 2021-06-13 00:10 +0200
  Re: Wiping an unencrypted SSD in preparation for encryption ghe2001 <ghe2001@protonmail.com> - 2021-06-11 17:20 +0200
  Re: Wiping an unencrypted SSD in preparation for encryption Michael Stone <mstone@debian.org> - 2021-06-11 21:30 +0200

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