Windows virtual machine iso image for mac

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Hdiutil attach /tmp/Catalina.dmg -noverify -mountpoint /Volumes/install_build Hdiutil create -o /tmp/Catalina -size 8000m -layout SPUD -fs HFS+J Open up Terminal and type each command individually to create a bootable. You will see an Install macOS 10.15 Beta.app in your Applications directory. Now open System Preferences and click on Software Update.

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To download the macOS Catalina, click on this link.