I've tried to install Big Sur, in a separate volume APFS, but the Mac go in boot loop for entire night. I've tried many times, but it's impossible to solve.
Then I've create a bootable usb with Big Sur, by terminal, and the problem to install the OS is, permission denied.
In the last, I've installed a new copy of Catalina in a new Volume, and I've tried to update to Big Sir by beta profile procedure. And the Mac go in boot loop again .
Please help !!! 😭
daddi86
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