- Apr 4, 2014
- Vega 64
- Mobile Phone
I must be missing something. I followed these instructions and here is what happens:
The OpenCore Canopy does launch but after I select the EFI drive I want to boot from the screen goes black and I and I get a DoNot Symbol (circle with the slash across it) and the machine eventually shuts off.
If I select the other drive (which is what I am supposed to do) the screen goes black and the apple logo comes up with a thermometer going like it is doing a system restore I think. This gets halfway through and the screen just goes black.
I still have my backup so after F12 I select that boot drive. Clover runs and I select my initial drive. Things come back except my dual monitors are just one, iTunes wants to launch but doesn't have my credentials, and 1Password keeps trying to verify (which I cancel).
Removing that file has no effect, but any of these could have had a positive impact:
- Cold boot
- Reset NVRAM
- Disable CFG-Lock in BIOS and configure the remaining parameters
I have this same problem and after these steps + "remove boot argument agdpmod=pikera." since I have a Vega 64, I still have instant stop-sign when trying to choose my boot drive. I'm on Catalina atm and Opencore 0.7.5.
Things that I'm thinking might impact:
• The USB stick is 64GB. Is that too big? Does it need to be <32gb?
• I have a Firewire 800 PCI card installed.
• Does the USB port matter for the stick if I get as far as the boot loader screen?
I cannot get Windows to boot from my other SATA SSD either via OpenCore. It sends me to the Windows repair screen. I click "Boot Windows 10" and then the computer just reboots. I have disabled AppleVTD.
What else can I have missed?