centos skip permission to modify the password

1. Modify my.cnf configuration sed -i '/ mysqld / a \ skip-grant-tables' /etc/my.cnf 

   
2. 2

   Restart mysql

   systemctl restart mysqld

   
3. 3

   Enter mysql

   This time we do not need the root password

   
4. 4

    use mysql;

   
5. 5

   UPDATE user SET Password = password('newpassword') where User = 'roo

   
6. 6

   Refresh rights

   flush privileges; 

   
7. 7

   drop out

   quit

   
8. 8

   Restore my.cnf configuration sed -i 's / skip-grant-tables / # skip-grant-tables / g' /etc/my.cnf

   
9. 9

   Mysql restart the service again

   systemctl restart mysqld

   

10.