 | I am very close to a perfect upgrade of my 2017 iMac to Sequoia. I installed the os on my thunderbolt external drive. It seems to run Sequoia perfectly well, but it only works if I run it in the following order: 1.) reboot, and hold option. 2.) select EFI boot.
If I select the MAC External 1TB on reboot, i get the screen with the "support.apple.com/mac/startup" and it won't load. Is there a step I missed to boot directly into the Sequoia drive? [link] [comments] |
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