...

The script works fine with version 1.5 or newer, but not

with 1.4.10. Is there an other way (perhaps export all data, new install, import)?

Can you explain what "doesn't work fine"? As far as I know, the upgrader script works fine upgrading from as far back as 1.3 - Tim Starling had cause to check this less than a week ago.

The first error:

... Adding ipb_anon_only field to table ipblocks...Query "RENAME TABLE `ipblocks_newunique` TO `ipblocks` " failed with error code "Error on rename of './wikidb/ipblocks_newunique' to './wikidb/ipblocks' (errno: 121) (localhost)".

After deleting 'ipblocks' comes the next error:

Creating page_restrictions table...Query "CREATE TABLE `page_restrictions` ( pr_page int(8) NOT NULL, pr_type varchar(255) NOT NULL, pr_level varchar(255) NOT NULL, pr_cascade tinyint(4) NOT NULL, pr_user int(8) NULL, pr_expiry char(14) binary NULL, PRIMARY KEY pr_pagetype (pr_page,pr_type), KEY pr_page (pr_page), KEY pr_typelevel (pr_type,pr_level), KEY pr_level (pr_level), KEY pr_cascade (pr_cascade) ) TYPE=InnoDB " failed with error code "Can't create table './wikidb/page_restrictions.frm' (errno: 121) (localhost)".

This could be a never ending storry...

Stephan