[root@zzbaike ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.32.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
All space for primary partitions is in use.
b edit nested BSD disklabel
c toggle the dos compatibility flag
F list free unpartitioned space
l list known partition types
p print the partition table
t change a partition type
v verify the partition table
i print information about a partition
u change display/entry units
x extra functionality (experts only)
I load disk layout from sfdisk script file
O dump disk layout to sfdisk script file
w write table to disk and exit
q quit without saving changes
g create a new empty GPT partition table
G create a new empty SGI (IRIX) partition table
o create a new empty DOS partition table
s create a new empty Sun partition table