pastrychef
Moderator
- Joined
- May 29, 2013
- Messages
- 19,458
- Motherboard
- Mac Studio - Mac13,1
- CPU
- M1 Max
- Graphics
- 32 Core
- Mac
- Classic Mac
- Mobile Phone
Well, I’ve really screwed my system, I think through a completely unnecessary Clover update for which I am cursing myself. Since then my install USB does get past a blank progress bar beneath the Apple logo.
I used verbose trying to boot from an external drive and a lot of lines filled the screen a few times. Where it stopped, it had completed a PCI configuration, did something with Airport Kexts and then crashed in a sequence where it was doing AppleUSBLegacy matching. The final line was: “mcache: 4 CPUs, 64bytes CPU C”
I used a still working Win 10 install to reformat the Sierra drive but I have a feeling the Sierra Clover EFI config is still in action and preventing the install USB and the basic system I have on a USB drive from booting. After a break, I’m going to remove the Sierra M.2 drive and see if I can do an install to a HDD.
I'm still on Clover r4243. I've never had a Clover updated bork my system like that...
If the boot drive you choose from BIOS does not have Clover, I don't see how it can still be affecting anything.