Trying out macOS Big Sur (Olarila build) on PC/VM — prepatched image with kexts and bootloader tweaks for broader hardware support. Backup first, prepare a 16GB+ USB, disable Secure Boot, and follow the included EFI instructions. Not official Apple software; use at your own risk.

The image remains one of the most downloaded community builds for a reason: it works. It bridges the gap between Apple's arbitrary hardware restrictions and your desire to run a modern, fluid OS on capable hardware.

Mount the hidden EFI partition of your USB drive using a tool like Clover Configurator Explorer++ on Windows.

Insert the USB into your PC. Boot into BIOS and select the USB as UEFI: USB Drive. OpenCore’s boot picker will appear. Select in verbose mode.

diskutil list sudo diskutil mount disk0s1 # usually EFI partition on internal drive

: Download the specific macOS Big Sur "Vanilla" image from the Olarila Forums EFI Folder

Macos Big Sur Olarila Top //free\\ Jun 2026

Trying out macOS Big Sur (Olarila build) on PC/VM — prepatched image with kexts and bootloader tweaks for broader hardware support. Backup first, prepare a 16GB+ USB, disable Secure Boot, and follow the included EFI instructions. Not official Apple software; use at your own risk.

The image remains one of the most downloaded community builds for a reason: it works. It bridges the gap between Apple's arbitrary hardware restrictions and your desire to run a modern, fluid OS on capable hardware.

Mount the hidden EFI partition of your USB drive using a tool like Clover Configurator Explorer++ on Windows.

Insert the USB into your PC. Boot into BIOS and select the USB as UEFI: USB Drive. OpenCore’s boot picker will appear. Select in verbose mode.

diskutil list sudo diskutil mount disk0s1 # usually EFI partition on internal drive

: Download the specific macOS Big Sur "Vanilla" image from the Olarila Forums EFI Folder