To solve this problem use GNU parted command with GPT. It supports Intel EFI/GPT partition tables. [...] By default Red Hat Enterprise Linux/CentOS comes with GPT kernel support. However, if you are using Debian or Ubuntu Linux, you need to recompile the kernel."
Update: Check a good post on IDoLinux about using GPT or LVM to partition file systems, and if you use hardware RAID in your system, do read about optimizing the Linux file system to maximize performance.