Basically, if you can boot the UEFI-enabled USB stick image, UEFI booting an installed FreeBSD should also work fine. I remember seeing a bug report about a sy

Basically, if you can boot the UEFI-enabled USB stick image, UEFI booting an installed FreeBSD should also work fine. I remember seeing a bug report about a system where the BIOS treated USB and non-USB disks differently resulting in one working and the other not. There's really no guarantees when you're dealing with broken BIOSes...