LVM Disk Expansion

Expand the required disk within your virtualisation platform

Run disk rescan

Warning

Replace sda with the physical identifier of the disk

echo 1>/sys/class/block/sda/device/rescan

Run fdisk -l to confirm the partition is at the required size, if not reboot the host

Expand disk

Expand the disk within cfdisk

Expand the LVM volume

Warning

Replace sda1 with the physical identifier of the partition

sudo pvresize /dev/sda1

lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv

resize2fs -p /dev/ubuntu-vg/ubuntu-lv

Confirm the partition has been successfully resized using df -h

Source: https://docs.binarybraids.com/linux/lvm_disk_expand/