GPT: Globally Unique Identifier (GUID) Partition Table
gdisk: http://rodsbooks.com/gdisk/
Create UEFI Partition
gdisk /dev/sda n Partition number: 1 [enter] First sector: [enter] Last sector: +400M Hex code or GUID: ef00 w
List GPT Partition Table
gdisk -l /dev/sda
Format Partition
mkfs.vfat -F32 /dev/sda1