Dado que Apple suele entregar el instalador como una aplicación .app , para obtener un archivo .dmg puedes seguir estos pasos en la Terminal:
macOS Catalina was more than just a seasonal update; it was a cleanup of the past and a blueprint for the future. By retiring 32-bit apps and unbundling iTunes, Apple refined the Mac’s identity. For users looking to revive older hardware or maintain a specific software environment, downloading Catalina remains a popular choice for its balance of modern features and reliable performance. Do you need a direct link