1, fdisk partition using the msdos format, maximum support 2T hard disk, using more than 2T hard disk need to use parted command with GPT formatted partition.
2, in addition to modifying the outer partition format, linux kernel format support GPT partition to be added, modified as follows:
CONFIG_PARTITION_ADVANCED=y
If you want to support a variety of different disk partition format (especially with the use of UEFI- GPT format), be sure to check this.
CONFIG_EFI_PARTITION=y
It represents the future trend of the moment is ubiquitous EFI GPT ( the GUID of Partition the Table ) partition format is recommended to open. If you are installing on UEFI platforms must be turned on.
CONFIG_VFAT_FS=y 或 CONFIG_VFAT_FS=m
From start using Win95 VFAT file system (FAT32). If you want to use UEFI-based computer platform, and use GPT disk partition, you must choose "Y". See " Documentation / filesystems / vfat.txt " document.