# 1. Create a blank disk image hdiutil create -o /tmp/HighSierra -size 5600m -layout SPUD -fs HFS+J # 2. Mount the created image to your system hdiutil attach /tmp/HighSierra.dmg -noverify -mountpoint /Volumes/install_app # 3. Use Apple's built-in tool to write the installer files into the image sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/install_app --nointeraction # 4. Detach the newly created installer volume hdiutil detach /Volumes/Install\ macOS\ High\ Sierra # 5. Convert the temporary image into a final, read-only DMG file hdiutil convert /tmp/HighSierra.dmg -format UDZO -o ~/Desktop/macOS_High_Sierra_10.13.6.dmg # 6. Clean up the temporary file rm /tmp/HighSierra.dmg Use code with caution.
Yes, but strictly for specific use cases: download macos high sierra 10.13 6 dmg file
Conclusion Obtaining and using a macOS High Sierra 10.13.6 DMG should be done cautiously: prefer Apple-provided sources, verify integrity, and consider compatibility and security trade-offs. For most users, using the App Store installer or official Apple Support downloads and creating bootable media from that source is the safest, most educational approach. Use Apple's built-in tool to write the installer
However, finding a legitimate download for a macOS DMG requires caution. The safest and most authentic method is through the Mac App Store Clean up the temporary file rm /tmp/HighSierra
Before downloading, ensure your Mac is compatible. macOS High Sierra 10.13 supports the following models:
Before installing, ensure your hardware meets the minimum specifications: Using macOS High Sierra in 2025
Insert a blank into your Mac.
