I am running multiple MediaWiki 1.10.0 instances on a shared Linux hosting service. I am testing out having each instance point to a single set of source code, using the instructions at http://www.mediawiki.org/wiki/Manual:Wiki_family. I had no success with Scenario 2. Scenario 1 (symbolic links to source code files and directories) seemed to work nicely, with minimal changes. However, I found that I could not upgrade using this method. 'upgrade.php' fails because it cannot find 'LocalSetting.php'. It appears that when 'commandLine.inc' fetches the current directory, it gets back the source code directory, not the symbolically linked directory under the Wiki instance. This was reported in http://www.steverumberg.com/wiki/index.php/WikiHelp#Upgrading and a bypass suggested.

Does anyone have suggestions on the best way to have multiple Wikis point to one set of source code and be able to upgrade painlessly? Copying the LocalSettings.php file into the source code directory seems somewhat risky if/when memory fails... Thanks, Norbert