

Exit and reboot your Mac.Īnd if you’re wondering about the M1 Macs. Once in Recovery mode, authenticate with your account, go to Utilities in the menu bar and choose Startup Security UtilityĮnter your admin password again, and select Allow booting from external media. To allow T2 Macs to boot from external devices, restart the Mac and hold cmd + R to boot into Recovery mode.

MacBook Pro (13-inch, 2019, Two Thunderbolt 3 ports).MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports).MacBook Pro (13-inch, 2020, Two Thunderbolt 3 ports).These Macs have the Apple T2 Security Chip: Anyway, long story short… it might be a good idea to disable this feature before it’s too late.

The average user has to worry about the day an external device boot is required in order to save the data on that Mac. Most or, better said, the average user doesn’t have to worry about evil maid attacks. I would argue that it’s detrimental to most users. Some people would argue that this security setting is recommended for most users. The chip is responsible for a lot of things, and one of them is not allowing you to boot from an external device. HOW TO: Make GNOME Look Like macOS Big Surīack in 2018, Apple started shipping Macs with a new T2 security chip.How to Dual Boot Mac OS X and Linux - Install Linux on Your Intel-based Mac
