ubuntu--vg-ubuntu--lv consume the entire disk space available

# Increase the Physical Volume (pv) to max size
pvresize /dev/sda3

# Expand the Logical Volume (LV) to max size to match
lvresize -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv

# Expand the filesystem itself
resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv

source: https://community.spiceworks.com/topic/2325763-how-can-i-make-ubuntu-vg-ubuntu-lv-consume-the-entire-disk-space-available