Allow the system to download the full file. Once finished, the installer opens automatically. .
If you performed a clean installation, now is the time to set up Time Machine for automatic backups. Connect an external drive and enable Time Machine in System Preferences. macos high sierra 10136 dmg install
Once the media is ready, the installation process follows these steps: Allow the system to download the full file
sudo /Applications/Install\ macOS\ High\ Sierra\ 10.13.6_17G66.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume macos high sierra 10136 dmg install