I have Ubuntu 10.10 installed, which I configured using LAMP and installed WordPress on top. Almost everything works fine on it, except for thumbnails of images that are not generated at boot time. At first I tracked this with the absence of php-gd, but I installed this module (via apt-get install php5-gd, and then restarted Apache), which seems to make WordPress think that it is resizing, since all the parameters are no longer gray, but look in the uploads directory I see that no other files were created.
The launch php -mshows GD as a module, and also appears in phpinfo (). Almost every article I read on this particular issue says that it is resolved by installing GD, but this did not work in my case. There is nothing in the PHP or Apache error logs that give me anything to continue, so I'm not quite sure. It is a VPS that I have full root access, so if there is any command that I need to run, this will not be a problem.
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