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Back up the Rosetta 2 installer for offline use #

Prologue

• Rosetta may be removed from M1 Macs in some regions on macOS 11.3

Procedure

1. Download and install Rosetta 2:
   % softwareupdate --install-rosetta --agree-to-license

2. Find path to installer:
   % grep RosettaUpdateAuto.pkg /var/log/install.log

3. Copy installer for safekeeping:
   % cp /path/to/RosettaUpdateAuto.pkg /path/to/backup/dir/

Testing

1. Turn on new M1 Mac mini, keeping it disconnected from Internet

2. Copy Intel-only app to /Applications and attempt to launch:
   

3. Select "Not Now"

4. Run RosettaUpdateAuto.pkg installer:
   

5. Relaunch nvALT - success:
   

More

• RosettaUpdateAuto.pkg is 469,647 bytes with a SHA-256 checksum of 4079935a65385c6da8063e0c35a48419c03618bab8111ee35198c4baa1d7c81b

• Contents of RosettaUpdateAuto.pkg as reported by Suspicious Package:
  

/mac | Mar 27, 2021

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