1.新拿到一台liux主机，默认增加的硬盘没有挂载。所以需要创建文件系统同时挂载到一个目录下
#首先查看一下当前系统下有几块硬盘
[root@localhost tmp]# fdisk -l
Disk /dev/xvda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/o...