Thread:Project:Support desk/Easy way to upgrade from version 1.8 to 2.1?/reply (3)

I cannot say anything to step 6; no idea what a virtual machine needs to be set up. But since you obviously can basically access the files, that should be fine.

Step 7 is wrong: You need to update the MediaWiki source code first. After putting the old files in place again, overwrite them with those files, which are in the 1.22 tarball.

The extension FCKeditor is no longer maintained; remove it from LocalSettings.php and remove it from the folder extensions/.

Then try running update.php again.