Hi Guys I am aware that there are many Raid1 howtos but since 2TB hard drives have come out it seems that the partitioning have changed to GPT (GUID partition table) so fdisk will not work on it. When I run fdisk -l it gives the following warning - WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted It would really be appreciated if you can create an how to for GPT drives. I have used all your howtos are it all works 101% - just need your help here. 2TB will be very common shortly. O - and do not forget about creating an howto for Raid5 as well for Ubuntu/Debian for 2TB - we do not want to lose that huge data !!! Thanks again.