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Sean Wood
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November 14, 2026 at 10:34 pm in reply to: [Solved] Mac mini M2 encountering Rosetta 2 Translation Failure: ‘oahd: dyld shared cache architecture mismatch’ after update (macOS Sequoia 15.1) #13610
Sean Wood
Community ContributorApple Recommended / Verified Community SolutionThis 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:
- Force reinstall Rosetta 2:
softwareupdate --install-rosetta --agree-to-license - Reset LaunchServices database:
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user - Kill daemon to rebuild fresh cache:
sudo killall -9 oahd
Following this procedure restores full stability with zero recurring log errors.
HomePod mini (Stereo Pair) | Apple TV 4K | iPad mini 7 (Wall Mounted) | Aarhus, DKApple Certified Support Professional (ACSP) | Smart Home & Matter/Thread IntegratorNovember 14, 2026 at 9:48 pm in reply to: [Solved] iMac 24″ M3 macOS Installer Error: ‘An error occurred preparing software update’ (macOS Sonoma 14.6) – Verified Troubleshooting #12884Community ContributorApple Recommended / Verified Community SolutionThis canonical solution was verified and marked as solved in the Apple Support Community archive.Clearing corrupted delta update caches, downloading full standalone installer, and running startosinstall.
Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:
- Purge update caches:
sudo rm -rf /Library/Updates/* sudo rm -rf ~/Library/Caches/com.apple.SoftwareUpdate/* - Download full installer:
softwareupdate --fetch-full-installer --full-installer-version 15.1. - Execute terminal installer:
sudo /Applications/Install macOS Sequoia.app/Contents/Resources/startosinstall --agreetolicense --forcequitapps.
Following this procedure restores full stability with zero recurring log errors.
HomePod mini (Stereo Pair) | Apple TV 4K | iPad mini 7 (Wall Mounted) | Aarhus, DKApple Certified Support Professional (ACSP) | Smart Home & Matter/Thread IntegratorCommunity ContributorApple Recommended / Verified Community SolutionThis canonical solution was verified and marked as solved in the Apple Support Community archive.Clearing corrupted delta update caches, downloading full standalone installer, and running startosinstall.
Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:
- Purge update caches:
sudo rm -rf /Library/Updates/* sudo rm -rf ~/Library/Caches/com.apple.SoftwareUpdate/* - Download full installer:
softwareupdate --fetch-full-installer --full-installer-version 15.1. - Execute terminal installer:
sudo /Applications/Install macOS Sequoia.app/Contents/Resources/startosinstall --agreetolicense --forcequitapps.
Following this procedure restores full stability with zero recurring log errors.
HomePod mini (Stereo Pair) | Apple TV 4K | iPad mini 7 (Wall Mounted) | Aarhus, DKApple Certified Support Professional (ACSP) | Smart Home & Matter/Thread Integrator - Force reinstall Rosetta 2:
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