Installing macOS High Sierra (10.13.6) from a DMG file involves extracting the installer and then running the system update. High Sierra is often the final supported OS for many older Macs, such as the 2011 MacBook Pro. 1. Download the Official Installer
To create a bootable installer, you'll need a USB drive with at least 8GB of free space: macos high sierra 10136 dmg install
You will need a USB flash drive with at least 16GB of space. Format the USB Drive: Open Disk Utility (Applications > Utilities). Select your USB drive in the sidebar. Click Erase and use these settings: Name: MyVolume (or any simple name without spaces). Format: Mac OS Extended (Journaled). Scheme: GUID Partition Map. Create the Media via Terminal: Open Terminal. Installing macOS High Sierra (10
If you need the installer
Conclusion
(Be extremely careful with dd – the wrong disk number can wipe your system drive.) Go to the Apple Support website
To create a bootable installer, follow these steps: