解决：Disk /dev/sdb doesn't contain a valid partition table

1. 虚拟机--设置--添加，选择硬盘添加2. 首先为磁盘创建文件系统：mkfs.ext3 /dev/sdb3. 创建挂载点：mkdir /mnt/sdb4. 挂载：mount /dev/sdb /mnt/sdb5. fdisk -l 发现有问题： Disk /dev/sdb doesn't contain a valid partition table6. fdisk /dev/sdb跟着向导一步步做下去（如果不知道该输入什么，就输入“m”并回车，可以打印出菜单）：Command (m for help): mCommand action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition l list known partition types m print this menu n add a new partition（后面的菜单省略，太长了）这里我们要添加一个新的分区，所以输入“n”：Command (m for help): nCommand action e extended p primary partition (1-4)pPartition number (1-4): 1First cylinder (1-14098, default 1): （此处直接回车）Using default value 1Last cylinder or +size or +sizeM or +sizeK (1-14098, default 14098): （此处直接回车）Using default value 14098Command (m for help): pDisk /dev/sdb: 115.9 GB, 115964116992 bytes255 heads, 63 sectors/track, 14098 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System/dev/sdb1 1 14098 113242153+ 83 Linux现在可以写入分区表了，所以输入“w”：Command (m for help): wThe partition table has been altered!Calling ioctl() to re-read partition table.Syncing disks.现在再fdisk -l，结果正常