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$ sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia -volume /Volumes/USBCatalina Once completed you can now quit Terminal. You will see the progress bar as the bootable installer is created. Type Y to confirm that you understand you will be erasing the volume, and double check you have the right volume, then press Enter.Press Enter after typing the command, then type your administrator password and press Enter again.Sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia -volume /Volumes/USBCatalina Open a terminal and use the 'createinstallmedia' command shown but replacing 'USBCatalina' with the name of your volume.Make sure it is properly formatted as Mac OS Extended. Connect a USB drive (or use an external drive if you want).Extract media to a bootable USB stick or external driveĪpples tech note How to create a bootable installer for macOS explains. You can find the installer in your Applications folder as an app named Install macOS Catalina 2. If it does, Quit (⌘ Q) because we will not be updating your mac, we need to extract the bootable media from this download to create a brand new virtual machine. Important! After downloading, the installer may open automatically. It is not easy to find because most people won't need it. But they do have the App Store Link for macOS Catalina.

These instructions dont apply to a new installation of macOS Catalina in a virtual machine in VMware Fusion. Step by step instructionsĪpple provide instructions for upgrading to macOS Catalina, which explain which mac models are compatible and warn you to backup. TL:DR - Get VMware Fusion, Install VMware Fusion, download macOS Catalina from Apple, create a bootable USB of macOS Catalina and it can be installed in VMware Fusion just perfectly. It runs beautifully and is perfect for testing and development workloads. Using macOS Catalina in a virtual machine in VMware Fusion is expressly permitted by the macOS licence agreement provided you are running on Apple hardware and you obtain macOS Catalina legally from Apple. It is easy to install macOS Catalina as a virtual machine in VMware Fusion on a Mac provided you create a bootable installer from which to install the Mac operating system.