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9.6.4. 升​级​您​的​计​算​机​

之​前​的​启​动​选​项​upgrade,已​由​安​装​过​程​中​的​一​个​阶​段​代​替​,安​装​过​程​中​会​提​示​您​升​级​或​重​新​安​装​在​您​计​算​机​上​检​测​出​的​早​期​版​本​的​Fedora。​
但​如​果​/etc/fedora-release文​件​内​容​被​改​过​的​话​,安​装​程​序​可​能​无​法​正​确​的​检​测​出​旧​版​本​的​Fedora。​启​动​选​项​upgradeany会​跳​过​安​装​程​序​的​这​个​检​测​并​允​许​您​在​旧​版​本​未​被​正​确​识​别​的​情​况​下​升​级​Fedora。​