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cymrych Author

Level 1

17 points

Cannot upgrade to Monterey with non-apple SSD.

I cannot upgrade from Big Sur (11.6.1) to Monterey. I was unable to do so with the beta and now that the production release is available I'm still having the same issue. When attempting to run the installer from the applications folder, it fails to restart and prompts me to launch the application again. So I created a bootable USB using createinstallmedia and that progresses further, but during the restart process, it eventually fails with a "firmware upgrade could not be installed. Compatible internal media ..." error message. It then launches the startup disk dialog and I reboot back into Big Sur.

Mac Pro, macOS 11.6

Posted on Oct 26, 2021 8:20 AM

Top-ranking reply

Hawaiian_Starman

Level 7

21,415 points

Posted on Jan 25, 2022 8:24 AM

While that provides a workaround, why in the world ought I have to buy another drive just to install an otherwise compatible MacOS. Apple fixing this mess ought to be the answer, not expending more $$$ to compensate for their engineering error.

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Cannot upgrade to Monterey with non-apple SSD.

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