ERROR 1698 (28000): Access denied for user 'root'@'localhost'

Question

I\'m setting up a new server and keep running into this problem.

When I try to login to the MySQL database with the root user, I get the error:

Answer 1

in my case,

dev@Dev-007:~$ mysql -u root -p
Enter password: 
ERROR 1698 (28000): Access denied for user 'root'@'localhost'

I am sure my password was correct otherwise error code would be ERROR 1045 (28000): Access denied for user

so i relogin using sudo,

dev@Dev-007:~$ sudo mysql -u root -p

this time it worked for me . see the docs

and then change root password,

mysql> alter user 'root'@'%' identified with mysql_native_password by 'me123';
Query OK, 0 rows affected (0.14 sec)

mysql> 

then restart server using sudo /etc/init.d/mysql restart