[Virtualbox] Create new virtual disk

Virtualbox settings - Create a new storage

settings --> 
    storage --> 
    add new storage --> 
    Add Hard Disk --> 
    Create new disk

Partition disk

sudo fdisk /dev/sdb

Format disk

sudo mkfs -t ext4 /dev/sdb1

Edit fstab
vim /etc/fstab

#device        mountpoint             fstype    options  dump   fsck

/dev/sdb1    /home/happy               ext4    defaults    0    1

Referece :

• How to mount a new drive on startup