NetManiac

Witold Rugowski on web20 wave with Ruby on Rails

Thumbnails are missing when uploading new image

Posted on March 7, 2010 - Filed Under wordpress

Just a quick note - if You are experiencing missing thumbnails in image upload in Wordpress, then probably Your PHP installation misses php-gd module.

It is module by default installed on FreeBSD, but on Debian based Linux You have to add it by hand (apt-get install php5-gd).

I had to move my blogs to new, temporary host, with Linux on board instead of FreeBSD. Then I have noticed that when I want to publish new post I can only insert in it uploaded image in original size - not very handy. It took 15 minutes of googling and finally dive into wp-includes/media.php to check how these thumbnails are generated.

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