解决用rpm安装mysql时遇到系统库没有安装的问题

这几天做mysql的脚本备份测试，在red hat linux 5.3下搭建mysql环境：

安装mysq后l第一次启动报错：

110712 17:17:04 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

110712 17:17:04 [Note] Plugin 'FEDERATED' is disabled.

/usr/sbin/mysqld: Table 'mysql.plugin' doesn't exist

110712 17:17:04 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.

InnoDB: The InnoDB memory heap is disabled

InnoDB: Mutexes and rw_locks use GCC atomic builtins

InnoDB: Compressed tables use zlib 1.2.3

google搜索解决办法：

执行 /usr/bin/mysql_install_db --user=mysql --datadir=/var/lib/mysql 重新安装了mysql的系统库 解决。

注：/var/lib/mysql为rpm包安装mysql默认的数据文件目录