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System checks

Before upgrading your macOS version, we recommend you complete a few system checks that will help ensure your operating system (OS) upgrade goes smoothly.  Once these checks are completed, you can use Apple's instructions to upgrade to  macOS Ventura (v.13)macOS Monterey (v. 12), or macOS Big Sur (v.11).

Step 1: Check the status of your backup to ensure you're protected from data loss.

You can check the status of your backup by logging into CrashPlan. To do this, follow these steps. 

  1. Login to using your [SUNetID] e-mail address and SUNetID password.  ​
  2. Follow these instructions to view information about the status of your backup.
Step 2: Check to determine if an AFS client is installed on your computer.

To determine if you have a previous version of an AFS client installed on your computer, follow these steps:

  1. Open a Finder window.
  2. Navigate to Applications>Stanford>AFS>AFS Controller. 
  3. If that path exists on your device, you have an AFS client installed.

Warning: You MUST uninstall any previous version of OpenAFS on your computer prior upgrading to a new macOS version. Use the Stanford Software Removal Tool to uninstall OpenAFS. If you do not uninstall OpenAFS prior to upgrading your macOS version your computer could end up in a kernel panic loop. If this happens, see the macOS Kernel Panic Recovery instructions.​

Step 3: If you have an AFS client installed, you must uninstall it. 

To uninstall Open AFS, follow these steps:

  1. Download and execute the Stanford Software Removal Tool.
  2. Select OpenAFS from the list of installed software and remove it.

Get help

If you are unsure which OS to upgrade to, or if you run into issues with the system checks or have questions, submit a Help request for assistance.

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