fdisk /dev/sda

pvresize /dev/sda1 swapoff -a lvchange -an /dev/vg-root/swap lvremove /dev/vg-root/swap lvextend -L 2.5G /dev/vg-root/root lvcreate -l 100%FREE -n swap vg-root mkswap /dev/vg-root/swap swapon -a resize2fs /dev/vg-root/root