MediaWiki is crap?

Today I tried to install MediaWiki on one of servers and failed. This monster need memory_limit set to atleast 20M or will fail. Target system has it set to 8M and everything which is hosted there works fine. All I got from MediaWiki installer was memory allocation failed and it died.

There is no way to install this other then this web based something which does not work… Crap

mediawiki php