新手求教挂载数据盘输入fdiskl”出现和教程不一样的命令

下面这个命令什么意思~我是小白  新学


[root@AY1310271134007358b3Z ~]# fdisk -1
fdisk: invalid option -- 1
Usage: fdisk [-b SSZ] [-u] DISK     Change partition table
       fdisk -l [-b SSZ] [-u] DISK  List partition table(s)
       fdisk -s PARTITION           Give partition size(s) in blocks
       fdisk -v                     Give fdisk version
Here DISK is something like /dev/hdb or /dev/sda
and PARTITION is something like /dev/hda7
-u: give Start and End in sector (instead of cylinder) units
-b 2048: (for certain MO disks) use 2048-byte sectors
[root@AY1310271134007358b3Z ~]#