通过fdisk -l我们可以看到/dev/xvdb(此名称因系统而异)容量有23.6G，而且没有分区，

接下来我们对它进行分区和挂载 （红色字为需要输入的部分，黑色字为系统显示部分）
 1.fdisk -l
 [root@MyVPS ~]# fdisk -l
 Disk /dev/xvda: 8589 MB, 8589934592 bytes
 255 heads, 63 sectors/track, 1044 cylinders
 Units = cylinders of 16065 * 512 = 8225280 bytes
 Device Boot Start End Blocks Id System
 /dev/xvda1 * 1 13 104391 83 Linux
 /dev/xvda2 14 1044 8281507+ 8e Linux LVM
 Disk /dev/xvdb: 23.6 GB, 23622320128 bytes
 255 heads, 63 sectors/track, 2871 cylinders
 Units = cylinders of 16065 * 512 = 8225280 bytes
 Device Boot Start End Blocks Id System

2.对/dev/xvdb(此名称因系统而异)进行分区：
 [root@MyVPS ~]# fdisk /dev/sdb
 The number of cylinders for this disk is set to 2871.
 There is nothing wrong with that, but this is larger than 1024,
 and could in certain setups cause pro

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