@Lnerrrka

permissions for System.kext and mach_kernel are different.

<b>sudo-s
cp -R /path/to/mach_kernel /
chmod -R 644 /mach_kernel && chown -R root:wheel /mach_kernel
cp -R /path/to/System.kext /System/Library/Extensions/
chmod -R 755 /System/Library/Extensions/ && chown -R root:wheel /System/Library/Extensions/</b>

and yes, it would help if you cleaned the caches after this.

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