I have encountered with a database exception, while I have been waiting forward redirection from the custom database settings page. The exact exception is as fallows.

org.ofbiz.core.entity.GenericDataSourceException: SQL Exception while executing the following:SELECT pluginkey, pluginenabled FROM pluginstate (Table 'jira.pluginstate' doesn't exist)

It's a new installation on Ubuntu 12.04.4 LTS from atlassian-jira-6.2.2-bundle-x64.bin bundle performed as stated in this manual https://confluence.atlassian.com/display/JIRA/Installing+JIRA+on+Linux. The database is MySQL Server 5.5.35.

By sixth sense I've renamed the pluginversion table to pluginstate as it's with compatible columns. That resolved the issue. Probably it's an incompatibility issue between a sql creation script contained within the bundle and the code base.