Shutdown the box.
create a new Harddrive

clone the old drive to the new drive and then attach new drive in place of the old.

Now we have a bigger disk but the linux partitions need resizing to use the extra space.

This article covers the remaining steps

https://www.rootusers.com/how-to-increase-the-size-of-a-linux-lvm-by-expanding-the-virtual-machine-disk/