Extend LVM on Suse Enterprice

 1.  extend disk using parted (see http://kafemis.blogspot.com/2018/10/resize-hdd-virtual-machine-at-ubuntu.html)

2.  pvresize /dev/sda2

3.  lvextend -l +100%Free /dev/system/root

4. btrfs filesystem resize max /    (untuk btrfs filesystem)

     xfs_growfs /dev/vg/lv (untuk xfs filesystem)