查看磁盘

1. 
   $ fdisk -lu
   

创建分区

进入磁盘 /dev/sdb命令： fdisk/dev/sdb 输入m 查看命令帮助如下：

1. 
   $ fdisk /dev/sdb
   

1. 
   root@lt-PC:/# fdisk /dev/sdb
   


2. 
   Welcome to fdisk (util-linux 2.29.2).
   
3. 
   Changes will remain in memory only,until you decide to write them.
   
4. 
   Be careful before using the write command.
   


5. 
   Device does not contain a recognized partition table.
   
6. 
   Created a new DOS disklabel with disk identifier 0x886fa276.
   


7. 
   Command(m for help): m
   


8. 
   Help:
   


9. 
   DOS (MBR)
   
10. 
    a toggle a bootable flag
    
11. 
    b edit nested BSD disklabel
    
12. 
    c toggle the dos compatibility flag
    


13. 
    Generic
    
14. 
    d delete a partition
    
15. 
    F list free unpartitioned space
    
16. 
    l list known partition types
    
17. 
    n add a new partition
    
18. 
    p print the partition table
    
19. 
    t change a partition type
    
20. 
    v verify the partition table
    
21. 
    i print information about a partition
    


22. 
    Misc
    
23. 
    m print this menu
    
24. 
    u change display/entry units
    
25. 
    x extra functionality (experts only)
    


26. 
    Script
    
27. 
    I load disk layout from sfdisk script file
    
28. 
    O dump disk layout to sfdisk script file
    


29. 
    Save&Exit
    
30. 
    w write table to disk and exit
    
31. 
    q quit without saving changes
    


32. 
    Create a new label
    
33. 
    g create a new empty GPT partition table
    
34. 
    G create a new empty SGI (IRIX) partition table
    
35. 
    o create a new empty DOS partition table
    
36. 
    s create a new empty Sun partition table
    

输入 n 进行分区:

查看新增分区 /dev/sdb1

1. 
   $ fdisk -l
   

格式化

1. 
   $ mkfs.ext4 /dev/sdb1
   

挂载

建立 /opt/app目录

1. 
   $ mkdir /opt/app
   

挂载

1. 
   $ mount /dev/sdb1 /opt/app
   

查看

1. 
   $ df -h
   

配置开机自动挂载

1. 
   $ vim /etc/fstab
   

1. 
   /dev/sdb1(磁盘分区)/opt/app（挂载目录） ext4（文件格式）defaults 00
   

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