Note: What you remember as low-level formatting never happened. Low level formatting stopped being done in the early 80's, what you were doing was a disk reinitialization by rewriting all sectors to a default value. https://bit.ly/38AMTlN
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Soy un administrador de sistemas (aka: Chamán) especializado en entornos POSIX, si quieres saber mas puedes leer mi página personal.