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Secure wipe / erase for SSDs

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  • A
    abulhol
    last edited by Jul 31, 2020, 10:58 AM

    The FOG OS has nice options to securely wipe disks, but it is not efficient for SSDs.
    SSDs can be wiped with a few commands within seconds, while a shred for a 500 GB HDD takes about 1.5h.
    I have opened a Github issue for this:
    https://github.com/FOGProject/fos/issues/40
    Is anybody interested in adding this? Otherwise I will have a go at it.

    1 Reply Last reply Reply Quote 0
    • S
      Sebastian Roth Moderator
      last edited by Jul 31, 2020, 5:47 PM

      @abulhol Definitely a good point. Though I am not exactly sure how much can go wrong with secure erase on SSDs and if it really works for all models if we try to automate this with FOG. Do you have much experience with this?

      Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

      Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

      1 Reply Last reply Reply Quote 1
      • A
        abulhol
        last edited by Aug 7, 2020, 11:19 AM

        I am not an expert on SSDs, but I haven’t used any so far that did not support secure erase.
        But we could also add a check if it is supported as described e.g. here:
        https://www.thomas-krenn.com/en/wiki/Perform_a_SSD_Secure_Erase
        and run shred when in doubt.

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        • S
          Sebastian Roth Moderator
          last edited by Aug 9, 2020, 6:04 AM

          @abulhol Give it a go and post information here or on github to further discuss things. Or you might send in a pull request on the fos repo right away.

          Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

          Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

          A 2 Replies Last reply Aug 10, 2020, 1:36 PM Reply Quote 0
          • A
            abulhol @Sebastian Roth
            last edited by Aug 10, 2020, 1:36 PM

            @Sebastian-Roth PR done: https://github.com/FOGProject/fos/pull/41

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            • A
              abulhol @Sebastian Roth
              last edited by Aug 14, 2020, 5:56 AM

              @Sebastian-Roth Unfortunately, secure erase will most often be blocked by the BIOS (frozen state). See more details here: https://github.com/FOGProject/fos/issues/40

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              • S
                Sebastian Roth Moderator
                last edited by Aug 14, 2020, 12:18 PM

                @abulhol Too bad this is not working as intended now that you’ve pushed it forward a fair bit. Thanks heaps for your work and we might consider adding it anyways so it will work at least for some SSDs.

                What do you think?

                Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

                A 1 Reply Last reply Aug 14, 2020, 5:27 PM Reply Quote 0
                • T
                  Tom Elliott
                  last edited by Aug 14, 2020, 12:19 PM

                  What about this?

                  https://wiki.archlinux.org/index.php/Solid_state_drive/Memory_cell_clearing

                  From what I can gather, you can disable the “frozen state” from the BIOS, so sure it’s an extra step, but should still be possible.

                  The only machine that I see a warning is Lenovo. They have their own proprietary tool to perform erase operations.

                  Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

                  Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                  Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

                  A 1 Reply Last reply Aug 14, 2020, 5:29 PM Reply Quote 0
                  • A
                    abulhol @Sebastian Roth
                    last edited by Aug 14, 2020, 5:27 PM

                    @Sebastian-Roth Don’t worry, I didn’t spend too much time on it. I have a use case where it would have been helpful to have this feature.
                    I have used secure erase for extra SSDs on Linux, but not the root disk. Most likely the primary disk that holds the OS is locked by the BIOS.
                    I am happy if you merge the PR, would be interesting to see if it works for some setups.

                    1 Reply Last reply Reply Quote 0
                    • A
                      abulhol @Tom Elliott
                      last edited by Sebastian Roth Aug 16, 2020, 5:36 AM Aug 14, 2020, 5:29 PM

                      @Tom-Elliott Yes, this might work, but I didn’t want to spend too much time experimenting. If somebody wants to follow up on this, that’s fine, but I won’t. 🙂

                      1 Reply Last reply Reply Quote 0
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