[Solved] Mac mini M2 Rosetta 2 Translation Failure: ‘oahd: dyld shared cache architecture mismatch’ (macOS Sequoia 15.0) – Verified Troubleshooting

[Jacqueline Allen]

Diagnostic Hardware Specs: Mac mini M2 | OS Version: macOS Sequoia 15.0 | Archive Source: Apple Support Community #256058790

I am running into a persistent issue on my Mac mini M2 running macOS Sequoia 15.0.
Whenever the machine encounters Corrupted Rosetta runtime translation cache after major macOS incremental delta update, the following diagnostic log appears in Console:

oahd: [com.apple.oahd] Failed to translate binary chunk 0x979a: Invalid Rosetta dyld shared cache

I verified that hardware connections are intact and tested across different power sources. What is the verified diagnostic procedure to permanently eliminate this symptom?

MacBook Air 13″ M3 (16GB) | Apple GSX Terminal | Thermal Camera Seek Compact | Amsterdam, NL

Apple Certified Service Technician (ACiT / ACSP) | "Verified Apple Discussions Archive"

[Oliver Krueger]

Apple Recommended / Verified Community Solution

This canonical solution was verified and marked as solved in the Apple Support Community archive.

Reinstalling Rosetta 2 runtime daemon and rebuilding LaunchServices database.

Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:

1. Force reinstall Rosetta 2:

   softwareupdate --install-rosetta --agree-to-license

2. Reset LaunchServices database:

   /System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user

3. Kill daemon to rebuild fresh cache:

   sudo killall -9 oahd

Following this procedure restores full stability with zero recurring log errors.

Mac mini M2 (24GB) | Apple Technician Guide Hub | Fluke 87V DMM | Zurich, CH

Apple Certified Support Professional (ACSP) | Apple Certified Service Technician (ACiT / ACSP)

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