macOS kernel return 0xDC00800F (kOSKextReturnArchNotFound): meaning

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The kernel extension lacks executable code for the architecture requested by the loader.

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kOSKextReturnDependencies	kOSKextReturnCache

kOSKextReturnArchNotFound

Architecture is a property of the kext executable

kOSKextReturnArchNotFound means that the requested kernel environment has no matching executable slice in the extension. It is not a generic statement that an application on the same Mac is incompatible: the loader evaluates the kext executable and the executable code of the extensions it must use.

This condition is separate from signing and policy. A properly signed bundle can still lack the required architecture, while an extension with the right architecture can later fail validation, authentication, dependency resolution, or system policy.

What to compare

Capture the target macOS version, hardware family, boot architecture, and the exact kext executable being evaluated.
Inspect the architecture slices of the target and all resolved code dependencies; a universal host application does not make its embedded kext universal.
Verify that deployment did not select an older package variant intended for a different Mac population.
For new driver development, assess whether the DriverKit model is the appropriate supported alternative instead of extending a legacy in-kernel deployment.

References

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