Editing VirtualBox: Add HD

# Add Drive
From the Oracle VM Virtual Box Manager window, select the Virtual Box and click on Settings.

Go to Storage, select hard drive and click on Add a hard disk.

Click on Create New Disk.

# List Partitions
 fdisk -l

Iidentify which hard drive you need to partition
 fdisk /dev/sdb

# Format the Partition
 mkfs.ext4 /dev/sdb1

# Mount the partition
 mount /dev/sdb1 /path/to/mount

# Add fstab entry
 $ nano /etc/fstab

 /dev/sdb1               /path/to/mount           ext4    defaults        1 2