I just noticed that you can’t create rar archives with the filemanager plugin in rutorrent. The error I was getting always came from unrar…
I checked the plugin setup and noticed this in it’s conf.php file:
$pathToExternals[‘rar’] = ‘/usr/bin/unrar’;
$pathToExternals[‘zip’] = ‘/usr/bin/zip’;
$pathToExternals[‘unzip’] = ‘/usr/bin/unzip’;
$pathToExternals[‘tar’] = ‘/bin/tar’;
changing unrar to rar fixed the issue…