Do NOT update to macOS Ventura

That’s my advice. 




In System Preferences Software Update Switch off all auto updates, both download and install. Leave on security updates of course, which some OS features require, or they are disabled.




This is a new operating system so it should be treated as such, not just a regular system update. Treat it as if it’s a new computer that you just bought. For a new system you should always do a clean wipe of the drive and a new install. You do this with the full installer for the OS. 


  • You start by downloading full installer when it becomes available, usually the day of or the day after the OS release. 
  • Using this you create a bootable install disk with it. The easiest way is to use the MDS software from twocanoes https://twocanoes.com.
  • Next you must back up your existing system data volume content that holds the users. Make two copies from your system drive. 
  • Using the Recovery Disk Utility erase the system drive of the computer.
  • Then boot into the installer disk you created and run the installer onto your system hard drive.
  • During the installation process when Migration appears, migrated the users, and only the users, from your back up.
  • When installation is complete reinstall your applications from the App Store or by download from the developer’s website.  


One odd note about Ventura and FCP, version 10.5.4 will NOT run in the system and will produce a damaged file error on launch. However, version 10.4.10 and all versions of 10.6 will work in macOS 13. 

Posted on Oct 24, 2022 10:56 AM

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Posted on Nov 6, 2022 3:42 AM

“Last I tried, the USB install method did work, since the T2 chips. Are you installing on an older MacBooks or does it actually still work? Have not tried on M1s. May have to revisit.”


To boot from usb on a T2 mac, you first need to start from recovery and run the Startup Security Utility. There you need to change the security level to allow external booting. I believe the M1 macs may be similar but I don’t have one to confirm.

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Do NOT update to macOS Ventura

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