Up until a few days ago, I was running BigSur just fine. I then tried to update to Monterey and it all went wrong. However, I was not too concerned as I had a hard drive with Catalina that I could boot to. Only it wouldn't boot! I am not sure why. It has always booted before.
I do now have a 2009 Mac Pro with High Sierra installed. So I was able to access the EFI on the Catalina drive. I have no idea what could be wrong though.
I need to be able to boot to Catalina in order to access the EFI on my BigSur drive and replace it with the backup I had made before attempting the update to Monterey. I cannot do it from the Mac Pro because it is an NVME drive and I cannot install it on this machine without some sort of adapter card. Which will be my last resort.
I wondered if anyone has some time. Can you look at the attached EFI and see if anything looks wrong or out of place?
My motherboard is a Gigabyte B450 I AORUS PRO WIFI and my CPU is AMD Ryzen 5 2600 if that helps?
I do now have a 2009 Mac Pro with High Sierra installed. So I was able to access the EFI on the Catalina drive. I have no idea what could be wrong though.
I need to be able to boot to Catalina in order to access the EFI on my BigSur drive and replace it with the backup I had made before attempting the update to Monterey. I cannot do it from the Mac Pro because it is an NVME drive and I cannot install it on this machine without some sort of adapter card. Which will be my last resort.
I wondered if anyone has some time. Can you look at the attached EFI and see if anything looks wrong or out of place?
My motherboard is a Gigabyte B450 I AORUS PRO WIFI and my CPU is AMD Ryzen 5 2600 if that helps?