Tag Archives: increase lvm root partition

How to extend the root partition in LVM

In this tutorial, I am using the CentOS6(but also applicable on other Linux distro) that has ext4 partition lv_root mounted as / and lv_swap as swap from the volume group vg_centos6 (which is default), we pretend that we are running out of space in lv_root(/) and volume group (vg_centos6) doesn’t have any free space. We added a brand new drive with 20 GB space. Now, we need to assign this 20 GB space to volume group and then extend lv_root(/).

WARNING: Backup your data before attempting this.

First, we’ll check the file system disk space usage and logical volume information:

sudo df -h
sudo lvs

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