I just installed FreeBSD 10.3 on an HP 450-a114. The install went smoothly with no issues. The machine has Windows 10, Linux Mint, and an LFS distro. In the past (on the older BIOS-only machines), all I have had to do is add a menu entry to a grub file, run update-grub, and then FreeBSD would boot Using grub2. The machine I am on now is uefi, and I cannot get FreeBSD to boot. Windows and Linux boot fine though. Everything is on a single drive. Here are my partitions:
/dev/sda1 -> Some uefi partition (label: /boot/efi) /dev/sda2 -> Some Windows partition /dev/sda3 -> Windows 10 /dev/sda7 -> My LFS distro /dev/sda6 -> Linux Mint /dev/sda8 -> Some efi partition installed by FreeBSD (label: EFI) /dev/sda9 -> FreeBSD /dev/sda10 -> FreeBSD swap /dev/sda4 -> Windows recovery image /dev/sda5 -> Windows recovery image.
If anyone needs any type of command line output, I will be happy to post it.