Using MediaWiki’s web based installation wizard while various authorization and other security mechanisms are in place throughout Apache’s configuration contexts can lead to problems which are very hard to troubleshoot. This post outlines some things you should avoid while installing MediaWiki.
I use MediaWiki as a personal note-taking, documentation and code snippet storage system. This was started as an experiment, but a wiki proved to be a decent solution for the above tasks. This is a small checklist, mainly for my own reference, to follow when upgrading MediaWiki.