Converting an existing phpBB 2 forum to phpBB 3 is not that difficult. All you have to do is first install a fresh copy of phpBB 3. Then, after the installation is finished, you should click on the Convert tab in the installation menu.
There you will have to enter the MySQL information about the phpBB 2 database and username, as well as the location of the phpBB 2 installation folder. You should enter localhost for database host.
Please note that converting large databases may not be possible on a shared server. In such cases there are two solutions. You can either make the conversion locally on your computer and then upload the new forum to your account, or you can take advantage of our professional services and have our experts do the conversion for you. You can order this service from your Help Desk > Exclusive Professional Services > Application Upgrade.
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