Try to start mysql server as 'Mysql' user which most probably you used when installing the database as follows:-
PHP Code:
[root@localhost ~]# cd /usr/local/
[root@localhost local]# cd mysql
[root@localhost mysql]# bin/mysqld_safe --user=mysql &
Starting mysqld daemon with databases from /usr/local/mysql/data
Or,
start the mysql server with no privileges and that way you can reset the admin password of mysql root user.