CentOS启动MySQL服务失败

150112 15:21:28 mysqld_safe Starting mysqld daemon with databases from /data/mysql
150112 15:21:28 [Warning] Can‘t create test file /data/mysql/localhost.lower-test
150112 15:21:28 [Warning] Can‘t create test file /data/mysql/localhost.lower-test
^G/usr/libexec/mysqld: Can‘t find file: ‘./mysql/plugin.frm‘ (errno: 13)
150112 15:21:28 [ERROR] Can‘t open the mysql.plugin table. Please run mysql_upgrade to create it.
150112 15:21:28  InnoDB: Initializing buffer pool, size = 8.0M
150112 15:21:28  InnoDB: Completed initialization of buffer pool
150112 15:21:28  InnoDB: Operating system error number 13 in a file operation.
InnoDB: The error means mysqld does not have the access rights to
InnoDB: the directory.
InnoDB: File name ./ibdata1
InnoDB: File operation call: ‘open‘.
InnoDB: Cannot continue operation.
150112 15:21:28 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended