1.查看分区和磁盘:lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vda 253:0 0 150G 0 disk └─vda1 253:1 0 150G 0 part / vdb 253:16 0 200G 0 disk └─vdb1 253:17 0 200G 0 part /mydata