Copying a login keychain between Macs stops working on Secure Enclave Macs running macOS Tahoe
- Sources: primary, discussion
- Summary: Der Flounder reports that manually copying a login keychain file from one Mac to another no longer works on Secure Enclave equipped Macs running macOS Tahoe. macOS renames the copied file to login_renamed_1.keychain-db and creates an empty keychain in its place.
- Why it matters: Manual keychain migration is a routine Mac admin step, and the failure is silent, so the account ends up with an empty keychain rather than an error.