Thread:Project:Support desk/Easy way to upgrade from version 1.8 to 2.1?/reply (2)

Thank you for your help. OK, what I did was:

1. backup the mysql database 2. backup the old mediawiki directory 3. transfer them to the new VM 4. I then unpacked the old mediawiki directory 5. restored the mysql database to the new mysql system 6. edited the httpd.conf file to create a virtual server to allow access to the mediawiki directory as the root directory of the webserver 7. ran the update script.

Here I encountered an error:

PHP Notice: Undefined index: HTTP_USER_AGENT in /var/www/html/mediawiki/extensions/FCKeditor/fckeditor/fckeditor_php5.php on line 37 PHP Fatal error: Call to undefined function wfLoadExtensionMessages in /var/www/html/mediawiki/extensions/CategoryWatch/CategoryWatch.php on line 239
 * 1) php maintenance/update.php

Any ideas?