V
Vickitaryan
Guest
I'm sorry, i expressed myself badly. I meant that opencore does not detect BigSur .dmg, the pen starts up without problems and the bios is set correctly.It sounds like your USB drive maybe incorrectly configured, you can check in the bios if it shows as a boot option or by hitting the F8 key at boot. Make sure when creating the pen drive to format it correctly, I use the terminal command "Create Media" which you can google and then copy and paste into the terminal window. Once that part of the drive is done mount the EFI partition (I use EFI-Agent from Headkaze available on GitHub) then add the EFI folder there. Lots of ways to do the same thing so just a suggestion. @scope666 may have more suggestions...
Making further attempts if i put my EFI folder in the pen, OpeCore detects the Big Sur .dmg file.