Adding new disk to Ubuntu 14.04 system.

1. Add new hardware disk to Ubuntu 14.04 system using LVM ( Logical Volume Manager)

• fdisk /dev/sdb
• select new partition "n"
• select primary partition "p"  
• select one partition  "1"
• "cr"
• "cr" 
• write changes to disk "w"

2. Create Physical Volume,  Virtual Group and Logical Volume using LVM

• Make sure LVM is installed on your computer.
  sudo apt-get install lvm2
• Create physical volume "/dev/sdb1"
  pvcreate /dev/sdb1
• Create volume group named "testtool97-disk" and include physical volume /dev/sdb1
  vgcreate testtool97-disk  /dev/sdb1
• Create logical volume named "disk" of size 5.9G and add it to volume group testtool97-disk
  lvcreate -n disk -L 5.9 testtool97-disk

3. Make file system 

• mkfs.ext4 /dev/testtool97-disk/disk 
• mkdir /disk
• vi /etc/fstab 
• add following line to mount file system on "disk" mount point 


• /dev/testtool97-disk/disk /disk               ext4    errors=remount-ro 0       1


• save and quit 

4. Mount directory /disk

•  mount /disk