How to expand an LVM LV to use all space on the PV
note to self: never use LVM again… This title has far too many acronyms so I will start by clarifying the problem that this post aims to solve. I have a Ubuntu 18.04 server running LVM (Logical Volume Manager). My primary LV (Logical Volume) was ‘full’ but was only using 4GB of a 29GB PV (Physical Volume). So if you are suffering the same issue, here are the commands you need to fix this problem....