Apple kernel extensions are not signed after installing Ventura on MacBook Pro

Just made clean installation of macOS Ventura from USB stick over Big Sur, preserving Bootcamp partition.

I was really surprised, seeing that the Apple OS kexts are not signed and not loaded (most of them).

Is it normal situation, or should I immediately wipe out this installation?

(Intel MacBook 2018/32G/1Tb/Rad560x)



[Re-Titled by Moderator]

MacBook Pro 13″, macOS 10.14

Posted on Aug 2, 2023 2:20 AM

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Posted on Aug 2, 2023 6:07 PM

eugene.davidson wrote:

Is it normal situation, or should I immediately wipe out this installation?

It's normal. The operating system lives on a cryptographically signed snapshot. For compatibility reasons, there are stubs of various files in the normal filesystem. But the actual executables aren't present. Therefore, when you check the code signature, it fails. But that's OK, because none of these extensions are actually loaded from those locations. They are loaded from one of the other system locations. That's why none of those extensions are reported as loaded, because they aren't. But if you check using kmutil, you'll see that many of them actually are loaded.


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Apple kernel extensions are not signed after installing Ventura on MacBook Pro

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