Use Disk Utility to format a 16GB+ drive as Mac OS Extended (Journaled) . Name the drive: Title it MyVolume . Run Terminal: Paste the following command:
A DMG (Disk Image) file for macOS High Sierra is a complete, byte-for-byte copy of the installer package, often bundled with essential firmware updates. Unlike the standard Install macOS High Sierra.app (which is a bundle), a DMG is a container file designed for mounting and disk utility operations. It is the preferred format for: download macos high sierra 10.13.6 dmg mac
Always download the installer via the official Apple link (Method 1). If you must use a third-party source, verify the SHA-1 or MD5 checksum of the file against a known database to ensure the file hasn't been tampered with. Use Disk Utility to format a 16GB+ drive
: Open Terminal and paste the following: sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume Unlike the standard Install macOS High Sierra