查看磁盤

以 root用戶登錄，執行 fdisk-lu查看所有磁盤信息

$ fdisk 
-
lu

創建分區

進入磁盤 /dev/sdb命令： fdisk/dev/sdb 輸入m 查看命令幫助如下：

root@lt-PC:/# fdisk /dev/sdb 
Welcome to fdisk (util-linux 2.29.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table.
Created a new DOS disklabel with disk identifier 0x886fa276.
Command (m for help): m
Help:
 DOS (MBR)
 a toggle a bootable flag
 b edit nested BSD disklabel
 c toggle the dos compatibility flag
 Generic
 d delete a partition
 F list free unpartitioned space
 l list known partition types
 n add a new partition
 p print the partition table
 t change a partition type
 v verify the partition table
 i print information about a partition
 Misc
 m print this menu
 u change display/entry units
 x extra functionality (experts only)
 Script
 I load disk layout from sfdisk/> O dump disk layout to sfdisk script file
 Save & Exit
 w write table to disk and exit
 q quit without saving changes
 Create a new label
 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

輸入 n 進行分區:

一定記得輸入w才能保存分區更改

查看新增分區 /dev/sdb1

$ fdisk -l

格式化

$ mkfs.ext4 /dev/sdb1

掛載

建立 /opt/app目錄

$ mkdir /opt/app

掛載

$ mount /dev/sdb1 /opt/app

查看

$ df -h

配置開機自動掛載

$ vim /etc/fstab

後面追加一行：

/dev/sdb1(磁盤分區) /opt/app（掛載目錄） ext4（文件格式）defaults 0 0