mysql access deined

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# mysql -uroot -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
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# mysqladmin -uroot -p password 'newpassword'
Enter password:
mysqladmin: connect to server at 'localhost' failed
error: 'Access denied for user 'root'@'localhost' (using password: YES)'
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# /etc/init.d/mysql stop
# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
# mysql -u root mysql
mysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';
mysql> FLUSH PRIVILEGES;
mysql> quit
# /etc/init.d/mysql restart
# mysql -uroot -p
Enter password: <ÊäÈëÐÂÉèµÄÃÜÂënewpassword>
mysql>
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Ö±½ÓʹÓÃ/etc/mysql/debian.cnfÎļþÖÐ[client]½ÚÌṩµÄÓû§ÃûºÍÃÜÂë:
# mysql -udebian-sys-maint -p
Enter password: <ÊäÈë[client]½ÚµÄÃÜÂë>
mysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';
mysql> FLUSH PRIVILEGES;
mysql> quit
# mysql -uroot -p
Enter password: <ÊäÈëÐÂÉèµÄÃÜÂënewpassword>
mysql>
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# mysql -uroot -p
Enter password: <ÊäÈë/etc/mysql/debian.cnfÎļþÖÐ[client]½ÚÌṩµÄÃÜÂë>
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