Thread:Project:Support desk/Uploading a 2GB Zip file Timeouts/reply (10)

You may also need to change LimitRequestBody in your apache config (Separate config file from all your php configs). Other things to check - Make sure that where-ever php's temp directory is, that it doesn't (Seems like a long shot given hard disks are much bigger than that these days, but you never know)

Ideally you'd want something that does chunked uploads when dealing with files of that size, but MediaWiki doesn't currently support that (There was some talk about it with the fireogg stuff, but i don't think it ever got merged in, as far as i remember.).