Is it really impossible to install WPMU in the root of an add-on domain?
It sounds as if I am experiencing similar problems to SuperMario290. The main account I have is geneffects.com, and I am trying to install WPMU in an add-on domain at:
http://itscarrboro.com
But I'm being taunted with this error:
Warning: constant() [function.constant]: Couldn't find constant VHOST in /home/geneffec/public_html/itscarrboro/wpmu-settings.php on line 34
No WPMU site defined on this host. If you are the owner of this site, please check Debugging WPMU for further assistance.
Like SuperMario290 I also have had success installing it in a directory in an add-on domain. The domain satanornot.com (don't ask) is also an add-on for geneffects and though I could not install WPMU in the base I was able to get it running in:
http://satanornot.com/test/
This is baffling. If it can install in a subdirectory in an add-on domain, I don't see why it can't intall in the main directory.
To answer potential questions: I cleaned out the directory, including invisible files such as .htaccess. I did not try to create my own wp-config file. Permissions are correctly set.