upgrade from CentOS-4 to CentOS-5

[root@micematt CentOS]# rpm -Uvh centos-release-notes-5.0.0-2.i386.rpm

[root@micematt CentOS]# rpm -Uvh centos-release-5-0.0.el5.centos.2.i386.rpm

[root@micematt yum.repos.d]# ll /etc/yum.repos.d/
-rw-r--r-- 1 root root 2371 Apr 9 03:22 CentOS-Base.repo
-rw-r--r-- 1 root root 622 Apr 9 03:22 CentOS-Media.repo

[root@micematt yum.repos.d]#init 3

[root@micematt yum.repos.d]#yum upgrade