# Download macOS Sonoma (example) softwareupdate --list-full-installers softwareupdate --fetch-full-installer --full-installer-version 14.0 The installer appears in /Applications/Install macOS Sonoma.app .
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hdiutil create -o /tmp/MacOSImage -size 16384m -volname macOS -layout SPUD -fs HFS+J Note: Size must exceed the installer’s footprint (~12-15GB). download macos iso