In the VirtualBox GUI, open the virtual machine from the repo, create a new virtual hard disk, and set the HighSierra.iso image created in step 3 as a disk in the VM's optical drive.Run create_install_iso.sh, which will create a file named 'HighSierra.iso' on your desktop, based on the downloaded macOS installer app.It should be located in your Applications directory. Download the macOS installer app if you have not already.The script will will need to be modified to work with the installer app for other versions of macOS. Note: The create_install_iso.sh script is tailored to macOS hosts, and the macOS High Sierra installer app. This is a preconfigured macOS VirtualBox Virtual Machine, along with a script for preparing a bootable install ISO image from a downloaded Mac OS installer app.
