挂载
# 查看可挂载的磁盘
> fdisk -l
# 查看已经挂载的磁盘
> df -h
# 列出所有可用块设备的信息
> lsblk
# 初始化磁盘
> mkfs.ext4 /dev/vdb
# mount 磁盘到/home，保证/home为空
> mount /dev/vdb /home
# 获取磁盘的uuid和属性，用uuid来进行开机mount
> blkid
# 开机自动挂载
> echo "UUID=xxx /home ext4 defaults 0 0" >> /etc/fstab
卸载
> umount /dev/vdb
