Le 17/10/2015 17:51, Bartosz Dziewoński a écrit :
MediaWiki is at least theoretically able to upgrade its database schema from any old version to current one for your chosen version, by running the maintenance/update.php script.
The issue is that any recent Mediawiki requires MySQL5+. But MySQL5+ can't read a dump from the old wiki, even with some edit of deprecated commands (like TYPE to ENGINE), handling of too long keys, there's always another error, always something more.
So it's seems to be a vicious circle. I can't upgrade MW because of MySQL, and I can't upgrade MySQL because the database scheme updates are in MW.
Any way around that, without being a sql guru? Should an intermediary upgrade to MW 1.8 resolves this?