:: mysqld_safe Starting mysqld daemon with databases from /data/mysql

 :: [Warning] Can't create test file /data/mysql/localhost.lower-test

 :: [Warning] Can't create test file /data/mysql/localhost.lower-test

^G/usr/libexec/mysqld: Can't find file: './mysql/plugin.frm' (errno: 13)

 :: [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.

 ::  InnoDB: Initializing buffer pool, size = 8.0M

 ::  InnoDB: Completed initialization of buffer pool

 ::  InnoDB: Operating system error number  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.

 :: mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended