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TimmeyCook

Suspended
Original poster
Jun 20, 2018
460
1,224
Hi, since DP2, I think, my external UEFI drives do not boot (no internal OS's besides macOS). I start with option pressed, the menus show up normally, but when selected, they don't boot, but the system boots to macOS without error message.

Is this just with me?
 

Ricktracer

macrumors member
Nov 30, 2012
63
16
Hi, since DP2, I think, my external UEFI drives do not boot (no internal OS's besides macOS). I start with option pressed, the menus show up normally, but when selected, they don't boot, but the system boots to macOS without error message.

Is this just with me?

Is not just you.. It's a known issue, I mentioned on https://forums.macrumors.com/thread...he-firmware-on-my-imac.2124330/#post-26181406. Spread the word so Apple knows about this and fixes it. Also, reverting back to High Sierra will NOT fix the issue.
 
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