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Hdiutil attach /tmp/macOS.sparseimage -noverify -nobrowse -mountpoint /Volumes/install_build
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Hdiutil create -o /tmp/macOS -size 8316m -layout SPUD -fs HFS+J -type SPARSE # Create macOS sparseimage of 8316mb with a Single Partition - Apple Partition Map Note: you will need approx 18GB of free space on your hard disk for the script to complete.
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The commands in this executable script are shown below for informational purposes. Download and unzip the attached macOS_iso_creator.tool into your ~/Downloads folder:įor Final Release macOS_iso_creator_19A602.zip Note: You can verify the installer app by checking the SHA1 of InstallESD.dmg and BaseSystem.dmg (inside the \Install macOS Catalina Beta.app\Contents\SharedSupport folder) with the correct ones at this website.
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The app can be obtained from the App Store by enrolling in Apple's Public Beta program or directly from the software catalog with installScript_fullapp.zip. On your Mac or Hack, download/copy "Install macOS Catalina.app" into your Applications folder. To prepare the Catalina ISO on your Mac or Hack, you can use my macOS_iso_creator.tool.ġ.
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