Table 'mysql.plugin' doesn't exist

[Xiaoyun Li]

Hello,

Apologies if this post has been misplaced. But this problem really bothers me.

I installed MySQL 5.7.11 on Oracle Linux 6.5. Put my own my.cnf file under a customized directory named /u01/app/oracle/mysql/mycnf/my.cnf

Then I ran the following command to configure MySQL and start mysql:
/usr/sbin/mysqld --datadir=/u01/app/oracle/mysql/data --user=oracle --initialize-insecure --defaults-file=/u01/app/oracle/mysql/mycnf/my.cnf
/usr/bin/mysqld_safe --defaults-file=/u01/app/oracle/mysql/mycnf/my.cnf --user=oracle --datadir=/u01/app/oracle/mysql/data --pid-file=/u01/app/oracle/mysql/data/mysqld.pid

But I failed to start mysqld this way with some error like the following:
2016-04-13T08:12:44.413460Z 0 [Note] InnoDB: 5.7.11 started; log sequence number 0
2016-04-13T08:12:44.414320Z 0 [Note] Plugin 'FEDERATED' is disabled.
mysqld: Table 'mysql.plugin' doesn't exist
2016-04-13T08:12:44.414535Z 0 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
2016-04-13T08:12:44.414983Z 0 [Note] Salting uuid generator variables, current_pid: 10141, server_start_time: 1460535140, bytes_sent: 0,
2016-04-13T08:12:44.418881Z 0 [Note] Generated uuid: '8013906a-014f-11e6-b5e9-0021f6000002', server_start_time: 2854437740283307777, bytes_sent: 35442768
2016-04-13T08:12:44.418899Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 8013906a-014f-11e6-b5e9-0021f6000002.
2016-04-13T08:12:44.484994Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2016-04-13T08:12:45.225161Z 0 [Note] Auto generated SSL certificates are placed in data directory.
2016-04-13T08:12:45.240477Z 0 [Warning] CA certificate ca.pem is self signed.
2016-04-13T08:12:45.697990Z 0 [Note] Auto generated RSA key files are placed in data directory.
2016-04-13T08:12:45.698193Z 0 [Note] Server hostname (bind-address): '*'; port: 49500
2016-04-13T08:12:45.706306Z 0 [Note] IPv6 is available.
2016-04-13T08:12:45.706328Z 0 [Note] - '::' resolves to '::';
2016-04-13T08:12:45.706379Z 0 [Note] Server socket created on IP: '::'.
2016-04-13T08:12:45.856805Z 0 [Warning] Failed to open optimizer cost constant tables

2016-04-13T08:12:45.857008Z 0 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
2016-04-13T08:12:45.857114Z 0 [ERROR] Aborting

Does anyone know what the problem is in my case and how to solve this problem? Any suggestions would be great appreciated!

Thanks in advance!