[Mediawiki-l] upgrading from 1.4rc1 (or any 1.4) to 1.6.8 (or anything >= 1.5)

[Dr. Johannes Zellner]

Hi,

I'm desperately trying to upgrade from 1.4rc1 to 1.6.8. I followed all
the information I could find on the web but still having no success.

I manage to upgrade within 1.4 easily up to 1.4.15.
But upgrading to everything >= 1.5 fails with:

...
Initialising "MediaWiki" namespace...
A database error has occurred
Query: SELECT old_text,old_flags  FROM `text`  WHERE old_id = '48'   LIMIT 1
Function: Revision::loadText
Error: 1146 Table 'wikidb.text' doesn't exist (localhost)

Backtrace:
GlobalFunctions.php line 602 calls wfbacktrace()
Database.php line 473 calls wfdebugdiebacktrace()
Database.php line 419 calls databasemysql::reportqueryerror()
Database.php line 806 calls databasemysql::query()
Database.php line 825 calls databasemysql::select()
Revision.php line 667 calls databasemysql::selectrow()
Revision.php line 435 calls revision::loadtext()
Revision.php line 424 calls revision::getrawtext()
InitialiseMessages.inc line 197 calls revision::gettext()
InitialiseMessages.inc line 72 calls initialisemessagesreal()
updaters.inc line 822 calls initialisemessages()
update.php line 67 calls do_all_updates()

Apparently, there's no 'text' table in older databases.o
How can I upgrade my database? -- I tried  the scripts upgrade1_5.php and
update.php (in this order). The old databse is already UTF8 encoded.

Any help much appreciated!

-- 
Johannes