$ ./mysqladmin -u root -p 'redacted'
Enter password:
mysqladmin: connect to server at 'localhost' failed error:
'Access denied for user 'root'@'localhost' (using password: YES)'
How can I fix this?
All solutions I found were much more complex than necessary and none worked for me. Here is the solution that solved my problem. No need to restart mysqld or start it with special privileges.
sudo mysql
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';
With a single query we are changing the auth_plugin to mysql_native_password and setting the root password to root (feel free to change it in the query)
Now you should be able to login with root. More information can be found in mysql documentation
(exit mysql console with Ctrl + D or by typing exit)