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Yosemite 10.10 DP4 erased EFI partition


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Allowed my system to update to DP4.

When I restarted it would not finish booting

 

Noticed that FakeSMC was not allowed to load even though NVRAM shows kext-dev-mode 1 in it

 

I was trying everything to get FakeSMC to load

 

put the kext-dev-mode=1 as a boot arguement which was in my clover config.

 

systen started normally

I mounted my EFI partition to read the clover config into clover configurator

That is when I noticed EFI had been erased.

Was not hard to fix, Install clover, copy a backup of config.plist back to EFI partition

 

Rebooted and everything works fine

 

 

 

 

 

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It was not because FakeSMC was in S/L/E it was because was not reading any clover files from the EFI partition, the portion of the update process

that occurs at a different run level before a restart erased everything in the EFI partition, which also removed the boot flag kext-dev-mode=1

 

 While trying to get my system back up I moved FakeSMC to /Library/Extensions where some other kexts are located.

 

I am not sure how the system was able to boot and stall with clover missing from the EFI partition.

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