Compatibility perimeter — Installation & Startup / Select the target disc

This topic is an official beginning of the Team HexaOS ; it does not represent a user's testimony, nor does it represent a test result already obtained. Theme : **Select the target disc**. Subforum : « Installation & Startup ». Objective of the theme : avoid any ambiguity before partitioning. Subforum rule : Document the installation without encouraging unconfirmed destructive writing. Angle proposed : « Compatibility perimeter ». Instruction : document an exact configuration and the limitations of what has been observed. Indicate only HexaOS 3.0.0-rc1, publishing, the identity of the artifact, the environment, the preconditions, the steps, the expected result and the observed result. In the snapshot of August 20, 2026, eight out of thirteen editions are qualified and the overall verdict remains NO-GO. An idea, a presence in the sources or a partial essay never validates other editions. Remove keys, chips, internal addresses, personal data and raw logs. This official thread is delivered read-only; no response, vote and commitment counter are assigned to the community.