I have php 5.04 (in Plesk 8 and Fedora 4) in my system but i need php 5.1 because it is required for installing a script. The problem is that i do not need to update also the mysql version because i use php in a plesk installaion and i need only to update the php version from 5.04 to 5.1 for installing this script. I use Fedora Core 4. What i have to launch in yum to avoid that it update mysql ? I need only this one : php-5.1.4-2.fc4.remi.i386.rpm but not to update the mysql. I think it is possible. I have found rpm for php 5.1 here : http://remi.collet.free.fr/ and here : http://3es.atomicrocketturtle.com/atomic-bleeding/art/4/RPMS/ What i have to launch in yum ?