Apple provides .app files, not .iso files. If you need an ISO for , you have to build it yourself using the Terminal. Once you have the "Install macOS High Sierra" app in your Applications folder, run these commands:
# Create a blank disk image hdiutil create -o /tmp/HighSierra -size 5600 m -layout SPUD -fs HFS+J # Mount the image hdiutil attach /tmp/HighSierra.dmg -noverify -mountpoint /Volumes/install_build # Write the installer files to the image sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/install_build # Unmount and convert to ISO (CDR) hdiutil detach /Volumes/Install\ macOS\ High\ Sierra hdiutil convert /tmp/HighSierra.dmg -format UDTO -o ~/Desktop/HighSierra.iso # Rename to .iso mv ~/Desktop/HighSierra.iso.cdr ~/Desktop/HighSierra.iso Use code with caution. Copied to clipboard 3. Third-Party Downloads (Proceed with Caution) macos high sierra 10.13 6 iso download
installer via the Mac App Store. To get an ISO, you must first download the official installer on a compatible Mac and then convert it using Terminal. Microsoft Community Hub 1. Download the High Sierra Installer Apple provides
softwareupdate --fetch-full-installer --full-installer-version 10.13.6 Copied to clipboard 3
