I have tried for several days to get a working installer for either Catalina or Big Sur. No luck. I followed the instructions provided on this youtube video, rebuilt everything several times to make sure I didn't make a bad copy, used other peoples EFI that swore success on their similar systems...nada. With Catalina, I can't even get to the OpenCore boot menu; all I get is 'C: Failed to find SB mode DefaultDefaut halting on critical error' right at bios load. With Big Sur, I get some verbose action, system reboots to "end Setcontrolmode", more verbose, then a final stop on HPET: map services failed...single ram bank...
I did turn off SIP in the plist, as I was wondering if it being on was blocking install progress...Any help would be super.
I did turn off SIP in the plist, as I was wondering if it being on was blocking install progress...Any help would be super.