modify the root password linux grub interface tutorial

Reprinted from: https://jingyan.baidu.com/article/a3aad71a18c2bcb1fb0096b8.html

 

Tools / materials

• centos7 operating system

Method / Step

 

1.  

   First start centos7 power, press the space below the graphical interface, the system stops at this interface, this interface is generally the default time is 5 seconds, to get the chance.

   
2.  

   Then press the "e" key to enter the edit option, wait screen appears press the key has been the final turn. Find linux16 ..... ro crashdernel = auto .... similar words.

   
3.  

   Ro then change to "rw init = / sysroot / bin / sh", press the key combination ctrl + x, operation of the system after a change.

   
4.  

   After the launch, enter the command "chroot / sysroot"

   
5.  

   Then enter "passwd root", set the user password, enter the same password twice.

   
6.  

   Then execute the command "touch /.autorelabel" writes system information.

   
7.  

   Then forced to restart the system until the system login screen to enter us to change a good password, you can log in successfully found. At this point the password change is completed.

   

8.