linux磁盘扩容

分区扩容

yum install -y cloud-utils-growpart
# 扩容分区
growpart /dev/sda 2 

lvm磁盘扩容

# 刷新pv磁盘大小
pvresize /dev/sda2
# 扩容lv
lvextend -l +100%FREE /dev/centos/root 
# 扩容文件系统
xfs_growfs /dev/mapper/centos-root