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Big Sur "Installation Failed"

Every time I select upgrade now I get an error saying " An error occurred while installing the selected updates." but no further detail as to why? It doesn't even start to download..... any one else having this issue? or any idea how to resolve? I have a MacBook Air 2017 - so it's compatible with the update.....

MacBook Air 13″, macOS 10.15

Posted on Nov 12, 2020 1:31 PM

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Posted on Nov 12, 2020 1:32 PM

Apple is reporting issues with Mac OS update servers.


Apple - Support - System Status

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11 replies

Nov 12, 2020 8:18 PM in response to matty228

matty228:


Has your download continued?


I know some here have stated things they did, after which the download continued.


I’m here to tell you that such are coincidental!


I found a remote server authentication error in my Console.


I tried the Big Sur download, again, to confirm, but my download began, finally.


I hadn’t actually changed anything!


All it took was to wait until the remote server had it’s authentication updated.


gdgmacguy, sort of alluded to this, in a sense.

Big Sur "Installation Failed"

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