Hi
i am tying to install centova 2.2.6 and i get a blank install.php page after i run install.sh.
I have tried everything in the forums and the kb. I have install the loader for the encoding after i get a message for it. I have alsofix the error reporting in the php.ini after i saw the error in the install.php.
I am trying to install it on a server with no domain and so I am using the ip as url. Is this a problem?

Nope, using a bare IP address instead of a domain will not cause a blank page.

The only reasons for this to happen are per the KB article you mentioned.  If you edited php.ini and checked your logs, then sorry to be so direct about this, but you almost definitely edited the wrong php.ini or looked in the wrong logs.  You can find the correct php.ini using the instructions in the KB.