Ubuntu extend disk

Created two servers, both have disks of 32gb, one with lvm second without

After installing, added 32gb to the disks

lsblk does not see anything

after runing this (we are asking system to rescan devices)

echo 1 | sudo tee /sys/class/block/sda/device/rescan

now lsblk sees 64gb

install util to manage disks

sudo apt-get install -y cloud-utils

next, extend partition

on vm without lvm

sudo growpart /dev/sda 2
sudo resize2fs /dev/sda2

on vm with lvm

sudo growpart /dev/sda 3
sudo pvresize /dev/sda3
sudo lvdisplay
sudo lvextend -r -l +100%FREE /dev/ubuntu-vg/ubuntu-lv