Monthly Archives: January 2022

Remove/Uninstall Rosetta 2 from Apple Silicon Macs

  1. Obtain a list of files/directories and LaunchAgents with: pkgutil --files com.apple.pkg.RosettaUpdateAuto
  2. Save them in a way that you can access them in the recovery
  3. Boot into recovery mode: Press and hold the power button on your Mac until “Loading startup options” appears.
  4. Open Terminal in recovery mode
  5. Run csrutil disable and confirm (temporary disable SIP)
  6. Reboot
  7. Delete the files listed at step 1 (in my case it was enough to delete /Library/Apple/usr/share/rosetta and /Library/Apple/usr/libexec with all their contents)
  8. Remember to empty the Trash
  9. Reboot back to recovery
  10. Run csrutil enable and confirm

Sample pkgutil output: 

$ pkgutil --files com.apple.pkg.RosettaUpdateAuto
Library
Library/Apple
Library/Apple/usr
Library/Apple/usr/lib
Library/Apple/usr/lib/libRosettaAot.dylib
Library/Apple/usr/libexec
Library/Apple/usr/libexec/oah
Library/Apple/usr/libexec/oah/debugserver
Library/Apple/usr/libexec/oah/libRosettaRuntime
Library/Apple/usr/libexec/oah/runtime
Library/Apple/usr/libexec/oah/translate_tool
Library/Apple/usr/share
Library/Apple/usr/share/rosetta
Library/Apple/usr/share/rosetta/rosetta

Migrate Homebrew from Intel Macs to Apple Silicon Macs

Dump all your existing Homebrew packages:

brew bundle dump

If you’re using custom shell installed by Homebrew (ie. fish), change it back to bash temporarily:

chsh -s /bin/bash

You may also need to change this in System Preferences – Users & Groups (right click on your avatar and choose Advanced Options…)

Uninstall existing Homebrew (and all its packages):

curl -fsSL -o /tmp/uninstall.sh https://raw.githubusercontent.com/Homebrew/install/HEAD/uninstall.sh
/bin/bash /tmp/uninstall.sh --path=/usr/local
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