To be able to extend an LVM volume, we need to add physical storage (partition or a disk).


We add a new partition to /dev/sdb2 using the fdisk tool:

 Remark:

The partition /dev/sdb1 already exists on the system, fdsisk is going to propose /dev/sdb2 by default. We also have to give it the LVM filesystem type.
We create the partition using:


we check using the below command:


We check the existing LVM volume using:


Creating the physical volume:

We create the physical volume based on the partition /dev/sdb2 using:


Extending the volume group:

We then extend the volume group with the new partition /dev/sdb2:


We check that /dev/sdb2 is in the "vg_name" volume group:


We could also use the command pvs as below: 


Extending the logical volume:

We extend the logical volume "/dev/mapper/vg_name-lv_name" using: 


In the example above we extend the logical volume by five megabytes.

Resizing the filesystem:


Remark:

The resize2fs command works for ext3 and ext4 Linux filesystems. 
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