"Reboot and select proper boot device" after clearing NVRAM.

[denisuu]

I cleared my NVRAM when I tried to migrate to Opencore.

I never removed the Clover EFI files on the EFI partition on my main HDD. I only tried to boot OpenCore from a USB-stick.
Because I couldn't get everything to work under OpenCore I just removed the USB-stick to boot Clover.

But now I get the error:
"Reboot and select proper boot device or Insert Boot Media in selected Boot device and press a key"


Any idea how I can get my machine to boot Clover again?

Thanks in advance!

 

[erdnj]

Hey @denisuu , first I appreciate your efforts and sharing. Fist I tried to set my computer Macintosh with open core, I repeated official steps patches etc. many time about one week. After I give up and I encounter your posts about black screen issue. At the beginning I do not want to do that with clover bec of wasted too many time with OC. After I decided to try, I updated kexts and Clover version and Ta Da! Here is a Mac OS man! Sure there is some issues but not problem they can solvable.
Anyway, I wonder did you rescue your OS after all of these efforts?
Also thank you again man!