So it seems that the database b2evo creates is IonnDB if I understand you correctly, as the host doesn't recognise it so it didn't create it.

Hope this may be of some help:

I create my own database via MySQL 5.1 that b2evo then populates. b2evo uses whatever is the default which will be MyISAM not IonnDB on my host

http://stackoverflow.com/questions/3818759/what-is-innodb-and-myisam-in-mysql

"You can specify the type by giving MYISAM OR InnoDB while creating a table in DB."

"InnoDB is a storage engine for MySQL, included as standard in all current binaries distributed by MySQL AB. Its main enhancement over other storage engines available for use with MySQL is ACID-compliant transaction support"

"MyISAM is the default storage engine for the MySQL relational database management system versions prior to 5.5 1. It is based on the older ISAM code but has many useful extensions. The major deficiency of MyISAM is the absence of transactions support. Versions of MySQL 5.5 and greater have switched to the InnoDB engine to ensure referential integrity constraints, and higher concurrency."

@jevylux I'm afraid that there are no hidden flags, InnoDB support is required since a long time ago, but now it's a blocker requirement in latest versions.

You can find a recent discussion about this topic in this thread: http://forums.b2evolution.net/weird-mysql-erro-during-upgrade

MyISAM is very basic and limited, compared to what InnoDB offers.

InnoDB is required to properly execute transactions, which is necessary to preserve coherence of the data. Additionally, InnoDB allows better performance on sites with heavy traffic (row locking), allows better maintenance of the DB (referential integrity) and also better stability (no corrupted tables).

In the case of b2evolution, we want to take full advantage of the performance and reliability benefits of a modern DBMS.

See also: http://b2evolution.net/man/myisam-vs-innodb

@jevylux who is your webhost? Do they offer different hosting plans?