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Upgrade to Catalina (or latest OS) failed at 1 minute

I see from others that Catalina OS upgrade failed at 1 minute mark.


i am upgrading now and also failed at 1 minute mark. Tried to power down and back on; computer won’t go back on.


Any suggestions?

MacBook Pro 15″, OS X 10.11

Posted on Sep 12, 2022 10:55 AM

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Question marked as Top-ranking reply

Posted on Sep 12, 2022 5:37 PM

Follow each of these seven steps: If your Mac doesn't turn on - Apple Support.

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Upgrade to Catalina (or latest OS) failed at 1 minute

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