Fdisk
From wikinotes
fdisk allows you to create mbr/gpt partitions on linux.
Usage
sudo fdisk /dev/sdb d # delete partition table g # create gpt partition table p # print partition table n # create partition t # change partition type w # save
Common Partition Types
GUID
1 EFI System [C12A7328-F81F-11D2-BA4B-00A0C93EC93B] # fat32 20 Linux Filesystem # ext2/ext3/ext4 11 Microsoft Basic Data [EBD0A0A2-B9E5-4433-87C0-68B6B72699C7] # exfat