Add new hard disk you Linux.

mount.sh

# Extracted information from below
# http://rbgeek.wordpress.com/2012/05/11/how-to-add-2nd-hard-drive-to-ubuntu/
# http://ubuntuforums.org/showthread.php?t=1659376

# 1. List out all the disk you have in hand now.
sudo fdisk -l

# 2. Create partition on the secondary hard drive.
#    Remember to create logical partition.
sudo fdisk /dev/sdb

# 3. Update the kernel with the change.
sudo partprobe /dev/sdb

# 4. Format the new hard disk.
sudo mkfs /dev/sdb1 -t ext4 

# 5. Mount the disk to your path.
sudo mount /dev/sdb1 /path-to-new-disk -t ext4

# 6. Permanently Add Hard Disk
#    add this line to the bottom
#    /dev/sdb1    /path-to-new-disk    ext4    defaults    0    0
sudo vi /etc/fstab

# 7. Mount it or reboot.
sudo mount -a