I have more problems to install the last macOS Big Sur for my Mac 27" 2020. Who has the same problems ? Have you solved it ?
iMac 27″, macOS 10.15
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I am having issues with two iMacs. One is a 27″ 2019, the other is a 27″ 2020 iMac. Both seem to install OK, but will not reboot. If I reboot from originally installed Catalina, I see a partial unbundling of the Big Sur installer in the System…/volumes folder.
I created an external Big Sur boot HD using a 2013 MacBook. I have not converted the internal MacBook from Catalina to Big Sur yet, too many potential pitfalls. Macbook Pro boots just fine from external disk, but will not boot either iMacs.
It doesn't work again, can you send me the link ?
Well the link is in my reply. What doesn't "work"? Are you getting an error message?
Big Sur for iMac 27" 2020
