innodb插件的问题

Question

我在Linux中安装了mysql 5.1.70。

当我启动MySQL时，我得到了这个

Can't open shared library '/usr/lib/mysql/plugin/ha_innodb_plugin.so' 

去了my.cnf并禁用了innodb插件。 Mysql开始了，但是当我在my.cnf文件中使用innodb插件变量并启动MySQL服务时，会引发更多错误。

130923 23:06:03 [ERROR] Can't open shared library '/usr/lib/mysql/plugin/ha_innodb_plugin.so' (errno: 22 cannot open shared object file: No such file or directory)
130923 23:06:03 [ERROR] Couldn't load plugin named 'innodb' with soname 'ha_innodb_plugin.so'.
130923 23:06:03 [ERROR] /usr/sbin/mysqld: unknown option '--innodb_file_per_table'
130923 23:06:03 [ERROR] Aborting

130923 23:06:03 [Note] /usr/sbin/mysqld: Shutdown complete

目录

中不存在

插件

 [po@localhost plugin]$ ls -lrth /usr/lib/mysql/plugin/ha_innodb_plugin.so 
ls: /usr/lib/mysql/plugin/ha_innodb_plugin.so: No such file or directory

我怎样才能得到 /usr/lib/mysql/plugin/ha_innodb_plugin.so ？