[root@db root]# ls -la *.rpm
-rw-r--r--  1 root root 9009895 Aug  9  2006 comps-4AS-0.20060803.i386.rpm
-rw-r--r--  1 root root 1893082 Aug 10  2006 redhat-release-4AS-5.5.i386.rpm
[root@db root]# rpm -i *.rpm
        package redhat-release-4ES-5.5 (which is newer than redhat-release-4AS-5.5) is already installed
        package comps-4ES-0.20060803 (which is newer than comps-4AS-0.20060803) is already installed
        file /etc/issue from install of redhat-release-4AS-5.5 conflicts with file from package redhat-release-4ES-5.5
        file /etc/issue.net from install of redhat-release-4AS-5.5 conflicts with file from package redhat-release-4ES-5.5
        file /etc/redhat-release from install of redhat-release-4AS-5.5 conflicts with file from package redhat-release-4ES-5.5
        file /usr/share/firstboot/modules/eula.pyc from install of redhat-release-4AS-5.5 conflicts with file from package redhat-release-4ES-5.5
        file /var/lib/supportinfo from install of redhat-release-4AS-5.5 conflicts with file from package redhat-release-4ES-5.5
        file /usr/share/comps/i386/hdlist from install of comps-4AS-0.20060803 conflicts with file from package comps-4ES-0.20060803
        file /usr/share/comps/i386/hdlist2 from install of comps-4AS-0.20060803 conflicts with file from package comps-4ES-0.20060803
[root@db root]# rpm -i --oldpackage *.rpm
        file /etc/issue from install of redhat-release-4AS-5.5 conflicts with file from package redhat-release-4ES-5.5
        file /etc/issue.net from install of redhat-release-4AS-5.5 conflicts with file from package redhat-release-4ES-5.5
        file /etc/redhat-release from install of redhat-release-4AS-5.5 conflicts with file from package redhat-release-4ES-5.5
        file /usr/share/firstboot/modules/eula.pyc from install of redhat-release-4AS-5.5 conflicts with file from package redhat-release-4ES-5.5
        file /var/lib/supportinfo from install of redhat-release-4AS-5.5 conflicts with file from package redhat-release-4ES-5.5
        file /usr/share/comps/i386/hdlist from install of comps-4AS-0.20060803 conflicts with file from package comps-4ES-0.20060803
        file /usr/share/comps/i386/hdlist2 from install of comps-4AS-0.20060803 conflicts with file from package comps-4ES-0.20060803