Mac Mini (2010 and later) Mac Pro (2010 and later) Here's the patch tool by dosdude for High Sierra, Iused his former patch to do the Sierra upgrade. If formatting an entire drive, ensure GUID is selected. Select the disk or partition you want to install on, and erase it, ensuring to use either Mac OS Extended (Journaled), or APFS as the filesystem type. Important Note: If you have a machine that supports High Sierra natively. MacOS Mojave Patcher Tool for Unsupported Macs. This is necessary in order to boot Catalina. Installing High Sierra on these machines will update the machine's system firmware, allowing it to boot from an APFS volume.
This usually occurs on machines that support High Sierra (macOS 10.13) natively, but whose owners have not installed High Sierra on them previously.
