因为别的原因需要客户自己手动处理
Centos - Extend LVM
fdisk /dev/sda
p > d > 2 > n > p > 2 > start block(回车默认数值) > end block(回车默认数值) > t > 2 > 8e > p (check all good) > w
partx -u /dev/sda
pvresize /dev/sda2
lvextend -l +100%FREE /dev/centos/root
df -hT
xfs_growfs /dev/mapper/centos-root
