And after you install mac os high sierra in virtualbox, you can upgrade your mac os to mojave. Particularly, there are to main methods of installing macOS Mojave on VirtualBox and VMware. As I have provided you the link in the above paragraph. Using the macOS Mojave VMDK file or image file. When it comes to terms of installing macOS Mojave on VMware or VirtualBox. Download macOS Mojave ISO For VMware & VirtualBox. Click Add and select the Catalina VMDK image. Click on the Folder icon to browse the macOS Catalina VMDK file. Hard Disk: Select Use an existing virtual machine hard disk file. Memory 4 GB (recommended 8 GB or higher).
