Help, to reset password........

[shujia tian]

I get an error when trying to reset password.

I start the db using:
mysqld_safe --skip-grant-tables &

and reset the pwd using the mysqladmin command
mysqladmin -u root flush-privileges password "newpwd"

then I got the error message:
mysqladmin: unable to change password; error: 'Can't find any matching row in the user table'


thanks