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Extend root partition – physical storage expand

If you extend the virtual disk that holds the root partition of a linux server, you should extend the physical storage and filesystem in order to allocate the available space. In this article I will explain how to perform the necessary actions to archive this goal.

At first you can see that physical volume is currently 200GB.

In order to extend you should use parted and select the volume which holds the root filesystem. In my case it was number 3 and I performed the extension through the command:

parted -s -a opt devsda 'resizepart 3 100%'

If you check the vg space you may notice that space is not allocated yet.

Then you should perform a pvresize for the aforementioned partition and the space will be provided on the volume group.

pvresize /dev/sda3