MySQL recently released 5.1.20 beta. I just ran into another gotcha, which prompted me to post this draft I’ve had for a while.

rbradford@newyork:/opt/mysql51$ scripts/mysql_install_db
Installing MySQL system tables...
070709 23:24:08 [Note] Plugin 'InnoDB' disabled by command line option
OK
Filling help tables...
070709 23:24:08 [Note] Plugin 'InnoDB' disabled by command line option
OK

To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:
./bin/mysqladmin -u root password 'new-password'
./bin/mysqladmin -u root -h newyork password 'new-password'
See the manual for more instructions.
You can start the MySQL daemon with:
cd . ; ./bin/mysqld_safe &

You can test the MySQL daemon with mysql-test-run.pl
cd mysql-test ; perl mysql-test-run.pl

Please report any problems with the ./bin/mysqlbug script!

The latest information about MySQL is available on the web at

http://www.mysql.com

Support MySQL by buying support/licenses at http://shop.mysql.com

Wait, there is an Innodb error message I’ve not seen . I’ll have to look into that.

mysql> show engines;
+------------+---------+----------------------------------------------------------------+--------------+-----+------------+
| Engine     | Support | Comment                                                        | Transactions | XA  | Savepoints |
+------------+---------+----------------------------------------------------------------+--------------+-----+------------+
| InnoDB     | YES     | Supports transactions, row-level locking, and foreign keys     | YES          | YES | YES        |
| MRG_MYISAM | YES     | Collection of identical MyISAM tables                          | NO           | NO  | NO         |
| BLACKHOLE  | YES     | /dev/null storage engine (anything you write to it disappears) | NO           | NO  | NO         |
| CSV        | YES     | CSV storage engine                                             | NO           | NO  | NO         |
| MEMORY     | YES     | Hash based, stored in memory, useful for temporary tables      | NO           | NO  | NO         |
| FEDERATED  | YES     | Federated MySQL storage engine                                 | YES          | NO  | NO         |
| ARCHIVE    | YES     | Archive storage engine                                         | NO           | NO  | NO         |
| MyISAM     | DEFAULT | Default engine as of MySQL 3.23 with great performance         | NO           | NO  | NO         |
+------------+---------+----------------------------------------------------------------+--------------+-----+------------+
8 rows in set (0.00 sec)

mysql> show plugins;
+------------+--------+----------------+---------+---------+
| Name       | Status | Type           | Library | License |
+------------+--------+----------------+---------+---------+
| binlog     | ACTIVE | STORAGE ENGINE | NULL    | GPL     |
| partition  | ACTIVE | STORAGE ENGINE | NULL    | GPL     |
| ARCHIVE    | ACTIVE | STORAGE ENGINE | NULL    | GPL     |
| BLACKHOLE  | ACTIVE | STORAGE ENGINE | NULL    | GPL     |
| CSV        | ACTIVE | STORAGE ENGINE | NULL    | GPL     |
| FEDERATED  | ACTIVE | STORAGE ENGINE | NULL    | GPL     |
| MEMORY     | ACTIVE | STORAGE ENGINE | NULL    | GPL     |
| InnoDB     | ACTIVE | STORAGE ENGINE | NULL    | GPL     |
| MyISAM     | ACTIVE | STORAGE ENGINE | NULL    | GPL     |
| MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL    | GPL     |
+------------+--------+----------------+---------+---------+
10 rows in set (0.00 sec)

Yet, it works fine! So what does message “[Note] Plugin ‘InnoDB’ disabled by command line option” really mean. On closer inspection it doesn’t say Error, however it’s a different message from previous installs, so it requires more investigate to know what’s happening.