linux 下安装MySQL出现问题 Access denied for user ''@'localhost' to database 'mysql'

1.关闭服务service mysqld stop

2.屏蔽权限mysqld_safe --skip-grant-table

3.查看进程 ps -ef |grep mysql

4.杀死进程 kill -9 xxx（如果有多余的进程的话）

5.mysql -uroot

6.use mysql 

7. delete from user where user=' '

8.重启服务service mysqld restart

9.mysql -uroot  -proot