Olarila Big Sur 11.2 with EFI folder for chipset series 300 and 400 [ New Build 20D64 ] DOWNLOAD MD5 (Olarila BigSur 11.2.raw) = fe4856c84f9dc1975adc76d02d46949c Others chipsets need generate one EFI folder with correct properties. Follow links bellow! OpenCore Vanilla Guide Clover Vanilla Guide