Thread:Project:Support desk/thumbnails not working and group permissions in LocalSettings don't have any effect after migration from MAMP to Ubuntu 14.04 LTS/reply

Hello!

For the first problem:

Please make really sure, that the webserver can write and create folders/files into your images folder (just to be clear at this point). Second is to make sure you followed this manual. Is ImageMagick or GD library installed and configured in your LocalSettings.php correctly?

For the second: Is it possible, that somewhere in your LocalSettings.php is set $wgGroupPermissions['*']['edit'] = true;?