Mac os sierra patcher. 2) Format it as GUID Partition Map, Mac OS Extended (Journaled) using the Disk Utility application. This is necessary in order to boot Catalina. OpenCore Legacy Patcher enables installing and running unsupported macOS versions on older Macintosh hardware. Open the "macOS Sierra Patcher" tool, and browse for your copy of the macOS Sierra Installer App. Does not revert any patches installed. AutoPkg Sep 11, 2022 · macOS Catalina Patcher (formerly macOS Mojave Patcher, macOS High Sierra Patcher and macOS Sierra Patcher) is a small yet powerful tool that can help you create a bootable USB drive that can be used to install macOS Catalina on Mac computers older than mid 2012, basically acting as a macOS Mojave patch for unsupported Macs. Contribute to dortania/OpenCore-Legacy-Patcher development by creating an account on GitHub. Aug 5, 2025 · Summary: If you have an old Mac that Apple does not officially support running macOS High Sierra, you can follow this guide to install macOS High Sierra on an unsupported Mac via the macOS High Sierra Patcher. OpenCore-Patcher-GUI. To protect your important data, clone the Mac hard drive with iBoysoft DiskGeeker easily. xus1cbj bb4sf amynkma l3z 2rkira ns90 1w es4 zcz9zl6 4wi