
Load the ISO in, and select your Operating system. I did all my testing in VMware Fusion Professional Version 12.1.2 (17964953). Once this is done, you can then start to build your VM in Fusion. If you get any size errors from the createinstallmedia command, asking for more space, delete your initial DMG and up the 13650m size accordingly. Mv ~/Desktop/Monterey.cdr ~/Desktop/Monterey.iso Hdiutil convert /tmp/Monterey.dmg -format UDTO -o ~/Desktop/Monterey.cdr

Sudo hdiutil detach /Volumes/Install\ macOS\ Monterey (-force if needed) Sudo /Applications/Install\ macOS\ Monterey.app/Contents/Resources/createinstallmedia -volume /Volumes/Monterey -nointeraction Hdiutil attach /tmp/Monterey.dmg -noverify -mountpoint /Volumes/Monterey hdiutil create -o /tmp/Monterey -size 13650m -volname Monterey -layout SPUD -fs HFS+J Once you have your Install macOS 12 Beta app, follow the below steps one by one. After trial and error this can come down to just over 13GB. The whole process took about 5 minutes in a Big Sur VM, and my terminal output looked like this. Hat tip to Frederik Abeloos – the Travelling Tech Guy. pkg to get the Installer app in Applications. IF you want to download a different image, I suggest using this: GitHub – scriptingosx/DownloadFullInstaller: macOS application written in SwiftUI that downloads installer pkgs for the Install macOS Big Sur application. I also have to do this from a VM as my work managed Mac blocks me from installing Betas, and copying around the ISO is more reliable than the. Once you have downloaded the Install macOS 12 Beta.app, I find it useful to convert it to an ISO before loading in Fusion. Update May 2022: Amended the ISO size to fit macOS 12.4, and updated the commands for the released name for the Monterey installer vs. So if you’re trying to get Monterey working in VMware Fusion and having some issues, read on!

Build and test apps in a sandbox while securely sharing local source files and folders. Fusion makes it simple to test nearly any os and app on a mac. VMware Fusion is simple enough for home users and powerful enough for it professionals, along with hundreds of other operating systems side by side with mac applications, without rebooting developers and businesses. VMware Fusion pro gives mac users the power to run windows on mac.
