Macos Catalina Portable Download Dmg 【2025】

# Download the installer from Apple softwareupdate --fetch-full-installer --full-installer-version 10.15.7 hdiutil create -o ~/Desktop/macOSCatalina.dmg -size 8500m -volname Catalina -fs HFS+ -srcfolder /Applications/Install\ macOS\ Catalina.app