# Tripwires
The USB-A Port on the Mac Mini will not work in u-boot and grub. The two
-additional USB-3 ports on the iMac 4 port model also don't work in u-boot, grub
+additional USB-3 ports on the iMac 4 port model don't work in u-boot, grub
and Linux. In order to install Linux on a FileVault-enabled Mac run the
installer from Recovery open Disk Utility > Expanding "Macintosh HD" >
Selecting locked volume > click "Mount".