[Bug 262241] gpart(8) destroy: option -F seems to not effectively destroy all partitions in some situations

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 02 Mar 2022 06:45:45 UTC

Stefan B. <sblachmann@gmail.com> changed:

           What    |Removed                     |Added
                 CC|                            |sblachmann@gmail.com

--- Comment #3 from Stefan B. <sblachmann@gmail.com> ---
So "gpart destroy -F geom" does _not_ actually wipe the partition block, at
least if it is a MBR one.

Now I think I understand that strange error that I encountered when attempting
to create a clone on a (formerly) MBR partitioned USB stick while testing my
new Skunk Cloner (https://github.com/SkunkOS/SkunkCloner).

If gpart destroy does _not_ work under some configurations, the only
work-around to ensure clean partition data then would be to zero-dd the
partition table.

Honestly, I would rather prefer to be able to use gpart destroy to clear out
any old partition data!
I don't like having no other choice than to hackingly use dd to clear partition

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