MySQL 5.7.7 - Centos 7 el7 - Access denied

Centos 7 3.10.0-123.8.1.el7.x86_64

Hi i have installed MySQL 5.7.7 from MySQL Yum Repository

rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm

After service mysqld start i use mysql_secure_installation then i get prompted for a password i just press enter and i get this error:

Error: Access denied for user ‘root’@‘localhost’ (using password: NO)

I think i have tried everything to find the password or to reset it - but no go

here are my steps:

1. rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
2. nano /etc/yum.repos.d/mysql-community.repo
3. Set MySQL 5.6 enabled=0 and set MySQL 5.7 enabled=1
4. yum install mysql-community-server
5. service mysqld start
6. mysql_secure_installation

Error: Access denied for user ‘root’@‘localhost’ (using password: NO)

any help is appreciated.