Preventing a volume from mounting at boot (macOS Catalina)

Here are the steps to prevent a volume from mounting at boot on macOS Catalina:

  1. Launch “Disk Utility” application and open the info for volume of interest:
  2. Copy the UUID:
  3. In terminal type sudo vim /etc/fstab:
  4. Paste the copied UUID and type additional arguments (more info):

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