Use fdisk to identify new hard drive (use sudo or root)
fdisk -l
For larger disks, make sure the partition table is gpt (vs mbr). This allows for larger and more partitions. To do this:
Using GParted, you can do this by going into Device->Create Partition Table and select "gpt" from the list.
Or parted
sudo aptitude install parted parted /dev/sdb print mklabel gpt mkpart primary 0% 100%