Thread:Project:Support desk/Mass disappearance of pages in mediawiki upgrade/reply (3)

You say that the pages now after the update contain wrong content. As far as I understand you, they should contain other text (more text or so).

This looks as if something got broken inside the database during the upgrade. However, I must say that I have never seen a case, where suddenly old revisions of pages were used after an upgrade. In this case, entries in the database table "text" should be missing, the revision table should point to other texts and when you try to access a page you should see errors over errors. But you don't.

Your Recent Changes page goes back to 2010 or so. It does not show any edits after January 2nd 2011. Is this the current state of your wiki or have you maybe used an old version of the database for this upgrade?

I would now replace this database with the backup from before the upgrade, make sure that this backup really is current and then run the upgrade script on this database again.