Oracle VM Server 3.1.1 with GPT Partition Error

Dear All,
I try to install Oracle VM Server with Sun Fire X4100M2 Server is got problem as below:

[root@ovmserver ~]# fdisk -l

Disk /dev/sda: 146.8 GB, 146810536448 bytes
255 heads, 63 sectors/track, 17848 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14       10456    83883397+  83  Linux
/dev/sda3           10457       15678    41945715   82  Linux swap / Solaris

WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sdb: 146.8 GB, 146810536448 bytes
255 heads, 63 sectors/track, 17848 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1       17849   143369664   ee  EFI GPT

WARNING: GPT (GUID Partition Table) detected on '/dev/dm-0'! The util fdisk doesn't support GPT. Use GNU Parted.