Linux expand partition to fill disk

Have you ever wondered how to extend your root or home directory filesystem partition using LVM? You might have low storage space and you need to increase the capacity of your partitions.

This article looks at how to extend storage in Linux using Logical Volume Manager (LVM).

[ Compare LVM and standard partitioning in Linux. ]

Process summary

The process is straightforward.

Attach the new storage to the system. Next, create a new Physical Volume (PV) from that storage. Add the PV to the Volume Group (VG) and then extend the Logical Volume (LV).

Look at the picture below. The red line mark shows the original size of the root mount point.

Linux extend lvm

The xvdc disk is the new disk attached to it. Extend the root partition to make it 60G in size.

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Create a Physical Volume

When you attach the new storage , you need to use the command in order for the disk to be initialized and be seen by the Logical Volume Manager (LVM).

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