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Downgrade From vBulletin 4.x To vBulletin 3.x
by
12 Dec 2010
Rating:
 (3 votes
- 5.00 average) Hi , One of the topics that most of webmasters talking about that is : How to downgrade from vBulletin 4.x.x to vBulletin 3.7 or 3.8 . You can downgrade your vbulletin from 4.x to 3.x very very easy ! Without losing attachments , thanks , passwords . You need IMPEX ( One of the vBulletin scripts like an addon ) to Do this work . How to do this : First of all you must get a backup ( export ) from attach and post_thanks table from your phpmyadmin ( in .sql format ) 1. Get full backup from your vbulletin 4.x database . 2. Go to members.vbulletin.com and download IMPEX Script . 3. Make a new database and a new place for your new vbulletin ( 3.8) . 4. Install vbulletin 3.x ( 3.8.7 for example ) for your new database . 5. Extract the impex script and upload impex files ( in upload folder ) to your 3.8 forum root . Now you have 2 databases . We call 4.x database old and 3.x database new . 6. You must config impex . 7. Go to impex folder in 3.x forum and rename ImpExConfig.php.new to ImpExConfig.php After rename , Open and edit it : Code:
#### # # TARGET - The target is the vBulletin database (where the data is going to) # #### $impexconfig['target']['server'] = 'localhost'; $impexconfig['target']['user'] = 'username'; $impexconfig['target']['password'] = 'password'; $impexconfig['target']['database'] = 'vbulletin_forum'; $impexconfig['target']['tableprefix'] = ''; # If the system that is being imported from uses a database, # enter the details for it here and set 'sourceexists' to true. # If the source data is NOT stored in a database, set 'sourceexists' to false $impexconfig['sourceexists'] = true; #### # # SOURCE - The source is the old forum database (where the data is coming from) # #### # mysql / mssql $impexconfig['source']['databasetype'] = 'mysql'; // mysql OR mssql $impexconfig['source']['server'] = 'localhost'; $impexconfig['source']['user'] = 'username'; $impexconfig['source']['password'] = 'password'; $impexconfig['source']['database'] = 'source'; $impexconfig['source']['tableprefix'] = ''; And set 4.x database informations in SOURCE 8. Go to vbulletin 3 admincp --> Login --> You must have a new tab "Import" 9. Click on Import tab then you will see import page. Select system : Choose 3.7.x Select version and product : Choose vBulletin 3.7 and 3.8 Start all of the modules . After you do this work you must go to update counters and update all of counters. After all of this works you must import post_thanks and attach table . ( then optimize tables) Thank you & Be successful . 
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