添加一块磁盘大小根据情况而定
fdisk /dev/sdb
Command (m for help): m #输入m列出常用的命令
Command action
a toggle a bootable flag #切换分区启动标记
b edit bsd disklabel #编辑sdb磁盘标签
c toggle the dos compatibility flag #切换dos兼容模式
d delete a partition #删除分区
l list known partition types #显示分区类型
m print this menu #显示帮助菜单
n add a new partition #新建分区
o create a new empty DOS partition table #创建新的空白分区表
p print the partition table #显示分区表的信息
q quit without saving changes #不保存退出
s create a new empty Sun disklabel #创建新的Sun磁盘标签
t change a partitions system id#修改分区ID,可以通过l查看id
u change display/entry units#修改容量单位,磁柱或扇区v verify the partition table #检验分区表
w write table to disk and exit#保存退出
x extra functionality (experts only)#拓展功能
对磁盘进行主分区
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)#主分区
e extended #扩展分区
Select (default p): p #选择创建主分区
Partition number (1-4, default 1): #默认创建第一个主分区
First sector (2048-2097151, default 2048): #默认扇区回车
Using default value 2048
Last sector, +sectors or +size{K,M,G}(2048-2097151, default 2097151): +2G #分配2G
创建扩展分区
ommand (m for help): n #新建分区
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p): e #创建扩展分区
Partition number (2-4, default 2):
First sector (104448-2097151, default 104448):
Using default value 104448
Last sector, +sectors or +size{K,M,G}(104448-2097151, default 2097151): #空间都给到扩展分区
创建逻辑分区
Command (m for help): n #新建分区
Partition type:
p primary (1 primary, 1 extended, 2 free)
l logical (numbered from 5)
Select (default p): l #创建逻辑分区
Adding logical partition 5
First sector (106496-2097151, default 106496):
Using default value 106496
Last sector, +sectors or +size{K,M,G}(106496-2097151, default 2097151): +5G #分配5G空间
Command (m for help): p #查看分区创建
Command (m for help): w #保存分区