GPT && EFI

gpt:globally Unique Identifier Partition table format is a partitioned tabular format that corresponds to MBR and Mac systems are installed on a GPT-formatted hard disk

EFI: Extensible Firmware Interface The abbreviation for the English name Extensible Firmware Interface is Intel, a company that is leading the development of PC technology, to replace the BIOS upgrade scheme in the future PC-like computer system.

GPT appears for high-capacity hard drives because MBR formats do not support more than 2TB of hard disks, and GPT can.

You can convert an MBR disk to a GPT (GUID) disk, and you can convert a GPT disk to an MBR disk only if the disk is empty.

You can also convert GPT to MBR

GPT, as part of the EFI specification, can support the traditional BIOS and of course EFI is backwards compatible with the MBR.

1) Installing the system or boot system on a GPT-formatted partition requires that the EFI motherboard-based system support boot from GPT

2) If you do not have an EFI motherboard-based system, use an MBR-formatted partition.

3) Win2003 sp1,vista,win7,win2008 is currently an EFI-enabled operating system. However, if it is an EFI motherboard, win2008 is definitely required to be installed on a GPT-formatted disk partition.

4) If you have a hard drive larger than 2TB and want to install an operating system on it, then you can only choose the GPT format, which requires the following: An EFI-enabled motherboard, an EFI-enabled operating system (Mac or Windows above).

Reference documents

http://blog.163.com/[email protected]/blog/static/1658300992012760260592/

GPT && EFI