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Migration via Command Line (CLI)#

For forums with more than 250,000 posts, we recommend that you run the import on the command line rather than via the ACP.


This article is intended for customers who run the software independently on their own server or web hosting.


  • SSH access is required
  • PHP extension must be installed as CLI variant on the server
  • Ideally, Screen is also installed on the server (the process continues even if the internet connection is interrupted)
  • An SSH client such as PuTTY or PuTTyTray is required ( respectively

Starting the Import#

Connect to the server via PuTTY and change to the installation directory of the WoltLab Suite installation. If GNU Screen is installed on your server, you can start the CLI import as follows: screen -S import php cli.php

Alternatively, please use the command: php cli.php

If you are using GNU Screen, you can always switch to the started session afterwards with screen -x import.

Inputs in the Import Wizard#

Username: Enter your username.

Password: Enter your password.

After successful login enter import.

Select data source: Here will be asked what Importer you want to use. Enter the appropriate number.

Import the selected data: Now the data is requested that we want to import. So we start with 1 for users and then say 0 for all. So we choose one by one.

Behavior for colliding user acounts: Depending on whether it is a fresh install or already have users, they should be merged during Import.

Database credentials:: Please enter the login information to the source database. These are available in the configuration file of the old forum (e.g.

Table prefix: When importing from a Burning Board 3.x, the prefix is eg wbb1_1_, phpBB usually use phpbb_ etc.

The correct table prefix can be looked up at any time in phpMyAdmin.

Installation path: The absolute server path to the old forum must be entered here.

Now the import starts. Depending on the server configuration and data size this may take a while.

Rebuild Data#

After you have finished the data import, you must rebuild the data. This can be done with the following commands in the CLI session:

  • worker wcf\\system\\worker\\LikeRebuildDataWorker
  • worker wbb\\system\\worker\\PostRebuildDataWorker
  • worker wbb\\system\\worker\\ThreadRebuildDataWorker
  • worker wbb\\system\\worker\\BoardRebuildDataWorker
  • worker gallery\\system\\worker\\ThumbnailRebuildDataWorker (Only if the gallery is installed)
  • worker gallery\\system\\worker\\AlbumRebuildDataWorker (Only if the gallery is installed)
  • worker gallery\\system\\worker\\ImageRebuildDataWorker (Only if the gallery is installed)
  • worker blog\\system\\worker\\BlogRebuildDataWorker (Only if the blog is installed)
  • worker blog\\system\\worker\\BlogEntryRebuildDataWorker (Only if the blog is installed)
  • worker calendar\\system\\worker\\EventRebuildDataWorker (Only if the calendar is installed)
  • worker calendar\\system\\worker\\EventDateRebuildDataWorker (Only if the calendar is installed)
  • worker filebase\\system\\worker\\FilebaseRebuildDataWorker (Only if the filebase is installed)
  • worker filebase\\system\\worker\\FileVersionRebuildDataWorker (Only if the filebase is installed)
  • worker filebase\\system\\worker\\FilebaseReviewRebuildDataWorker (Only if the filebase is installed)
  • worker wcf\\system\\worker\\ConversationMessageRebuildDataWorker
  • worker wcf\\system\\worker\\ConversationRebuildDataWorker
  • worker wcf\\system\\worker\\PageRebuildDataWorker
  • worker wcf\\system\\worker\\ArticleRebuildDataWorker
  • worker wcf\\system\\worker\\PollRebuildDataWorker
  • worker wcf\\system\\worker\\UserActivityPointUpdateEventsWorker
  • worker wcf\\system\\worker\\UserRebuildDataWorker
  • worker wcf\\system\\worker\\UserActivityPointItemsRebuildDataWorker
  • worker wcf\\system\\worker\\AttachmentRebuildDataWorker
  • worker wcf\\system\\worker\\MediaRebuildDataWorker
  • worker wcf\\system\\worker\\StatDailyRebuildDataWorker
  • worker wbb\\system\\worker\\PostSearchIndexRebuildDataWorker
  • worker wcf\\system\\worker\\CommentRebuildDataWorker
  • worker wcf\\system\\worker\\CommentResponseRebuildDataWorker
  • worker wbb\\system\\worker\\ArticleThreadsRebuildDataWorker
  • worker wcf\\system\\worker\\SitemapRebuildWorker

This rebuild usually takes about as long as the import itself.