Setting the root password
From MyWiki
mysql> UPDATE mysql.user SET Password=PASSWORD('MyNewPass')
-> WHERE User='root';
mysql> FLUSH PRIVILEGES;
mysqld_safe --skip-grant-tables &
mysql> use mysql;
mysql> update user set password=PASSWORD("NEW-ROOT-PASSWORD") where User='root';
mysql> flush privileges;
mysql> quit
===
ERROR 1146 (42S02): Table 'mysql.servers' doesn't exist
MariaDB [mysql]> flush privileges;
ERROR 1146 (42S02): Table 'mysql.servers' doesn't exist