MySQL启动报错Table'mysql.plugin'doesn'texist

启动报错：

/opt/szy/bin/MySQLd: Table \'mysql.plugin\' doesn\'t exist

141211 15:06:12 [ERROR] Can\'t open the mysql.plugin table. Please run mysql_upgrade to create it.

141211 15:06:14 [ERROR] Fatal error: Can\'t open and lock privilege tables: Table \'mysql.host\' doesn\'t exist

141211 15:06:14 mysqld_safe mysqld from pid file /opt/szy/data/mysqldevdb03.pid ended

问题分析：

百度了下，发现这是执行scripts/mysql_install_db --user=mysql没有成功的原因，没有一个初始化数据库，不能启动mysql守护进程

解决办法：

执行如下语句，szy为实例名

./scripts/mysql_install_db --user=szy --basedir=/opt/szy/ --datadir=/opt/szy/data/

重启启动，OK！

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