Updating fedora 5 to fedora 6
$ uname -a Linux 126.96.36.199-0.fc15.x86_64 #1 SMP Tue Oct 4 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux $ cat /etc/fedora-release Fedora release 15 (Lovelock) $ php --version PHP 5.3.13 (cli) (built: May 9 2012 ) Copyright (c) 1997-2012 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies with e Accelerator v0.9.6.1, Copyright (c) 2004-2010 e Accelerator, by e Accelerator You asked this question six months ago, at serverfault.com/questions/541019/upgrading-php-on-redhat, though I note you have just (four minutes ago) deleted it.
The answer remains the same: you're running an old and unsupported version of Fedora.
However I am aiming for official support - see https://fedoraproject.org/wiki/Features/Fedora Upgrade Currently you can upgrade only to next version.
You can upgrade from If there will be a problem during upgrade, this script will immediately stop and will not continue.
The first upgrade path I used with Fedora was that integrated into the previous version of the Anaconda installer.