You can test the ISO by using it to create a macOS virtual machine with VMware Fusion or burning it to DVD and using it on another Mac. The macOS Big Sur bootable ISO should now be created and stored on your Desktop. Mv ~/Desktop/macos-big-sur.cdr ~/Desktop/macos-big-sur.iso hdiutil convert /tmp/macOS.dmg -format UDTO -o ~/Desktop/macos-big-sur hdiutil detach -force /Volumes/Install\ macOS\ Big\ SurĬonvert the macOS disk image to an ISO file by executing the following commands. Once the copying has finished we can unmount the temp disk image with the following command. sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia -volume /Volumes/macOS -nointeractionĮnter your password when prompted and wait the files to copy.
#CREATE BOOTABLE MAC OS X ISO FOR VIRTUALBOX INSTALL#
Use the createinstallmedia utility (located inside the Install macOS Big Sur app) to copy the installer files to the mounted disk image by running the following command. See: SoaS v3 Mirabelle VirtualBox files to put on 2nd USB.
hdiutil attach /tmp/macOS.dmg -noverify -mountpoint /Volumes/macOS This a much simpler solution if you have VirtualBox-3.2.10-66523-OSX.dmg installed on your Mac. Mount the temp disk image with the following command.
hdiutil create -o /tmp/macOS -size 12945m -volname macOS -layout SPUD -fs HFS+J Open the Terminal app by pressing Command + Space, searching for “Terminal” then pressing Return.Ĭreate a temp disk image by executing the following command. Once, you’ve downloaded the macOS installer, follow the steps below to create the ISO. Download the Full macOS Big Sur Installer from the Command Line.In order to create the ISO you need to download the full macOS installer app to your Applications folder. Perfect for development environments and practice labs. Run Linux, macOS, vSphere and more on a single PC or Mac.
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