hdiutil create -ov -format UDRW -volname "macOS High Sierra" -size 5g -fs HFS+ -srcfolder /Applications/Install\ macOS\ High\ Sierra.app ./macoshighsierra.dmg
: On a Mac running macOS Catalina 10.15 or later, use the following command to download the full installer directly: softwareupdate --fetch-full-installer --full-installer-version 10.13.6 . download macos high sierra 1013 iso and dmg upd
To get a physical .dmg file (for backup): hdiutil create -ov -format UDRW -volname "macOS High
The most secure way to get the installer is through the Mac App Store. Note that searching for "High Sierra" directly in the App Store often yields no results; you must use a direct link. Requirements: A compatible Mac and the macOS High Sierra App Store page through Safari. . This will trigger Software Update to begin downloading the installer. Once finished, the file "Install macOS High Sierra.app" will be in your Applications Apple Support Community 2. Direct DMG & ISO Downloads (Third-Party) Requirements: A compatible Mac and the macOS High
packages (e.g., 10.13.2 or 10.13.6 Combo Updates). For full system images, users often turn to community-maintained archives. Apple Support
macOS High Sierra dmg download for making bootable usb insttaller