How to mount a partition on a disk that has an EFI GPT partition table in Debian GNU/Linux 5.0.3 (Lenny) by Phil Jones April 2010 What's this? This is an example of how to mount a partition from a large disk that has an EFI GPT partition table instead of the conventional MBR (Master Boot Record) partition table. A large disk means a hard drive that is 1 Terabyte or more. EFI stands for Extensible