查看磁盘
以 root用户登录，执行fdisk -lu查看所有磁盘信息
fdisk /dev/sdb
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 script file
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
输入 n 进行分区:
一定记得输入w才能保存分区更改
查看新增分区 /dev/sdb1
mkfs.ext4 /dev/sdb1
挂载
建立/opt/app目录
mount /dev/sdb1 /opt/app
查看
vim /etc/fstab
后面追加一行：
/dev/sdb1(磁盘分区) /opt/app（挂载目录） ext4（文件格式）defaults 0 0
