Восстановить root для mysql

Recover MySQL root Password

You can recover MySQL database server password with following five easy steps.

Step # 1: Stop the MySQL server process.
Step # 2: Start the MySQL (mysqld) server/daemon process with the --skip-grant-tables option so that it will not prompt for password.
Step # 3: Connect to mysql server as the root user.
Step # 4: Setup new mysql root account password.
Step # 5: Exit and restart the MySQL server.

Here are commands you need to type for each step (login as the root user):
Step # 1 : Stop mysql service
# /etc/init.d/mysql stop

Output:

Stopping MySQL database server: mysqld.

Step # 2: Start to MySQL server w/o password:
# mysqld_safe --skip-grant-tables &

Output:

Starting mysqld daemon with databases from /var/lib/mysql

mysqld_safe[6025]: started
Step # 3: Connect to mysql server using mysql client:

# mysql -u root

Output: 

Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1 to server version: 4.1.15-Debian_1-log

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql>
Step # 4: Setup new MySQL root user password

mysql> use mysql;
mysql> update user set password=PASSWORD("NEW-ROOT-PASSWORD") where User='root';
mysql> flush privileges;
mysql> quit
Step # 5: Stop MySQL Server:

# /etc/init.d/mysql stop

Output:
Stopping MySQL database server: mysqld
STOPPING server from pid file /var/run/mysqld/mysqld.pid
mysqld_safe[6186]: ended

[1]+ Done mysqld_safe --skip-grant-tables
Step # 6: Start MySQL server and test it

# /etc/init.d/mysql start
# mysql -u root -p