我已经安装了一段时间的MySQL，但是现在我发现我需要使用InnoDB引擎，但是还没有这样的引擎：
mysql> show engines;
+------------+---------+-----------------------------------------------------------+--------------+------+------------+
| Engine | Support | Comment | Transactions | XA | Savepoints |
+------------+---------+-----------------------------------------------------------+--------------+------+------------+
| CSV | YES | CSV storage engine | NO | NO | NO |
| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |
| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |
| MyISAM | DEFAULT | Default engine as of MySQL 3.23 with great performance | NO | NO | NO |
+------------+---------+-----------------------------------------------------------+--------------+------+------------+
4 rows in set (0.00 sec)
但我发现 MySQLInnoDB在其插件目录中有 's libs：
root@AY130703163117124510Z plugin]# ls
ha_archive.a ha_blackhole.la ha_example.so ha_federated.so.0 ha_innodb_plugin.so libdaemon_example.a mypluglib.la
ha_archive.la ha_blackhole.so ha_example.so.0 ha_federated.so.0.0.0 ha_innodb_plugin.so.0 libdaemon_example.la mypluglib.so
ha_archive.so ha_blackhole.so.0 ha_example.so.0.0.0 ha_innodb.a ha_innodb_plugin.so.0.0.0 libdaemon_example.so mypluglib.so.0
ha_archive.so.0 ha_blackhole.so.0.0.0 ha_federated.a ha_innodb.la ha_innodb.so libdaemon_example.so.0 mypluglib.so.0.0.0
ha_archive.so.0.0.0 ha_example.a ha_federated.la ha_innodb_plugin.a ha_innodb.so.0 libdaemon_example.so.0.0.0
ha_blackhole.a ha_example.la ha_federated.so ha_innodb_plugin.la ha_innodb.so.0.0.0 mypluglib.a
[root@AY130703163117124510Z plugin]#
我不想遇到任何不确定的问题，那么我该如何InnoDB启用呢？