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drupal7正式发布了，下载了一下，安装时候提示我错误，安装不了
Syntax error or access violation: 1286 Unknown table engine 'InnoDB'
原来是我的mysql里面，根本没有innodb存储引擎。进去后我们可以用 show engines;或者show plugins;来查看
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mysql> show plugins;
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+------------+--------+----------------+---------+---------+
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| Name | Status | Type | Library | License |
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+------------+--------+----------------+---------+---------+
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| binlog | ACTIVE | STORAGE ENGINE | NULL | GPL |
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| CSV | ACTIVE | STORAGE ENGINE | NULL | GPL |
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| MEMORY | ACTIVE | STORAGE ENGINE | NULL | GPL |
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| MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL | GPL |
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| MyISAM | ACTIVE | STORAGE ENGINE | NULL | GPL |
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+------------+--------+----------------+---------+---------+
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5 rows in set (0.00 sec)
解决方法1（推荐使用）：在configure的时候加上--with-plugins=innobase 如果要添多个插件，请用半角逗号隔开
如果何配置呢，其实将copy到/usr/local/mysql/my.cnf配置文件中[mysqld]下面有关innodb配置前面的#去掉就可以了。这是默认配置，可以根据个人需要进行修改
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# Uncomment the following if you are using InnoDB tables
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innodb_data_home_dir = /usr/local/mysql/var/
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innodb_data_file_path = ibdata1:10M:autoextend
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innodb_log_group_home_dir = /usr/local/mysql/var/
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# You can set .._buffer_pool_size up to 50 - 80 %
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# of RAM but beware of setting memory usage too high
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innodb_buffer_pool_size = 16M
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innodb_additional_mem_pool_size = 2M
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# Set .._log_file_size to 25 % of buffer pool size
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innodb_log_file_size = 5M
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innodb_log_buffer_size = 8M
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innodb_flush_log_at_trx_commit = 1
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innodb_lock_wait_timeout = 50
解决方法2：
如果你安装的时候忘记了添加innodb，又不想重新编辑mysql来添加，这样也没有关系，innodb就是一个插件，安装好mysql后也是可以添加的。
1，查看一下，mysql配置是不是支持动态添加插件
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mysql> show variables like "have_%";
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+----------------------+-------+
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| Variable_name | Value |
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+----------------------+-------+
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| have_compress | YES |
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| have_crypt | YES |
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| have_csv | YES |
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| have_dynamic_loading | YES |
如果是no呢，就不太好办，因为have_dynamic_loading是只读变量，
mysql> set have_dynamic_loading=1;
ERROR 1238 (HY000): Variable 'have_dynamic_loading' is a read only variable
不过一般情况下都是YES，
2，添加插件
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mysql> INSTALL PLUGIN INNODB SONAME 'ha_innodb.so';
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ERROR 1126 (HY000): Can't open shared library '/usr/local/mysql/lib/mysql/plugin/ha_innodb.so' (errno: 13 cannot restore segment prot after reloc: Permission denied)
上面报没有权限错误，搞得我很郁闷，解决办法如下：
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root@ubuntu:/usr/local/mysql# find . -type d -print |grep -i plugin
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./lib/mysql/plugin
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root@ubuntu:/usr/local/mysql# chcon -t texrel_shlib_t /usr/local/mysql/lib/mysql/plugin/ha_innodb.so
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chcon: 部分关联无法应用于文件“/usr/local/mysql/lib/mysql/plugin/ha_innodb.so”
用chcon也报错，我查一下是因为我没有安装selinux
root@ubuntu:/usr/local/mysql# whereis selinux
selinux:
selinux我根本没有安装，如果个人用，这个也不需要，没办法装一下，装完后chcon就不报错了。
安装以下几个
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mysql> install plugin INNODB soname "ha_innodb.so";
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mysql> install plugin INNODB_TRX soname "ha_innodb.so";
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mysql> install plugin INNODB_LOCKS soname "ha_innodb.so";
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mysql> install plugin INNODB_LOCK_WAITS soname "ha_innodb.so";
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mysql> install plugin INNODB_CMP soname "ha_innodb.so";
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mysql> install plugin INNODB_CMP_RESET soname "ha_innodb.so";
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mysql> install plugin INNODB_CMPMEM soname "ha_innodb.so";
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mysql> install plugin INNODB_CMPMEM_RESET soname "ha_innodb.so"
安装好后，在用 show engines;或者show plugins;来查看
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mysql> show plugins;
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+---------------------+--------+--------------------+---------+---------+
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| Name | Status | Type | Library | License |
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+---------------------+--------+--------------------+---------+---------+
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| binlog | ACTIVE | STORAGE ENGINE | NULL | GPL |
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| CSV | ACTIVE | STORAGE ENGINE | NULL | GPL |
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| MEMORY | ACTIVE | STORAGE ENGINE | NULL | GPL |
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| InnoDB | ACTIVE | STORAGE ENGINE | NULL | GPL |
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| INNODB_TRX | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
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| INNODB_LOCKS | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
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| INNODB_LOCK_WAITS | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
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| INNODB_CMP | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
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| INNODB_CMP_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
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| INNODB_CMPMEM | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
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| INNODB_CMPMEM_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
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| MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL | GPL |
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| MyISAM | ACTIVE | STORAGE ENGINE | NULL | GPL |
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+---------------------+--------+--------------------+---------+---------+
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13 rows in set (0.00 sec)
配置和方法一一样，第二种方法比较麻烦，不推荐使用。
(责任编辑：IT) |
