[root@localhost media]# yum update
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: ftp.tlk-l.net
* extras: ftp.tlk-l.net
* rpmforge: mirror.de.leaseweb.net
* updates: ftp.tlk-l.net
Setting up Update Process
Resolving Dependencies
--> Running transaction check
---> Package python-beaker.noarch 0:1.3.1-6.el6 will be updated
---> Package python-beaker.noarch 0:1.5.3-1.el5.rf will be an update
--> Processing Dependency: python(abi) = 2.4 for package: python-beaker-1.5.3-1.el5.rf.noarch
---> Package python-mako.noarch 0:0.3.4-1.el6 will be updated
---> Package python-mako.noarch 0:0.3.5-1.el5.rf will be an update
--> Processing Dependency: python(abi) = 2.4 for package: python-mako-0.3.5-1.el5.rf.noarch
---> Package python-markupsafe.x86_64 0:0.9.2-4.el6 will be updated
---> Package python-markupsafe.x86_64 0:0.11-1.el5.rf will be an update
--> Processing Dependency: python(abi) = 2.4 for package: python-markupsafe-0.11-1.el5.rf.x86_64
---> Package python-paramiko.noarch 0:1.7.5-2.1.el6 will be updated
---> Package python-paramiko.noarch 0:1.7.6-1.el5.rf will be an update
--> Processing Dependency: python(abi) = 2.4 for package: python-paramiko-1.7.6-1.el5.rf.noarch
--> Finished Dependency Resolution
Error: Package: python-mako-0.3.5-1.el5.rf.noarch (rpmforge)
           Requires: python(abi) = 2.4
           Installed: python-2.6.6-29.el6_2.2.x86_64 (@anaconda-CentOS-201207061011.x86_64/6.3)
               python(abi) = 2.6
Error: Package: python-markupsafe-0.11-1.el5.rf.x86_64 (rpmforge)
           Requires: python(abi) = 2.4
           Installed: python-2.6.6-29.el6_2.2.x86_64 (@anaconda-CentOS-201207061011.x86_64/6.3)
               python(abi) = 2.6
Error: Package: python-paramiko-1.7.6-1.el5.rf.noarch (rpmforge)
           Requires: python(abi) = 2.4
           Installed: python-2.6.6-29.el6_2.2.x86_64 (@anaconda-CentOS-201207061011.x86_64/6.3)
               python(abi) = 2.6
Error: Package: python-beaker-1.5.3-1.el5.rf.noarch (rpmforge)
           Requires: python(abi) = 2.4
           Installed: python-2.6.6-29.el6_2.2.x86_64 (@anaconda-CentOS-201207061011.x86_64/6.3)
               python(abi) = 2.6
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest

[root@localhost media]# yum upgrade --skip-brokenLoaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: ftp.tlk-l.net
* extras: ftp.tlk-l.net
* rpmforge: nl.mirror.eurid.eu
* updates: ftp.tlk-l.net
Setting up Upgrade Process
Resolving Dependencies
--> Running transaction check
---> Package python-beaker.noarch 0:1.3.1-6.el6 will be updated
---> Package python-beaker.noarch 0:1.5.3-1.el5.rf will be an update
--> Processing Dependency: python(abi) = 2.4 for package: python-beaker-1.5.3-1.el5.rf.noarch
---> Package python-mako.noarch 0:0.3.4-1.el6 will be updated
---> Package python-mako.noarch 0:0.3.5-1.el5.rf will be an update
--> Processing Dependency: python(abi) = 2.4 for package: python-mako-0.3.5-1.el5.rf.noarch
---> Package python-markupsafe.x86_64 0:0.9.2-4.el6 will be updated
---> Package python-markupsafe.x86_64 0:0.11-1.el5.rf will be an update
--> Processing Dependency: python(abi) = 2.4 for package: python-markupsafe-0.11-1.el5.rf.x86_64
---> Package python-paramiko.noarch 0:1.7.5-2.1.el6 will be updated
---> Package python-paramiko.noarch 0:1.7.6-1.el5.rf will be an update
--> Processing Dependency: python(abi) = 2.4 for package: python-paramiko-1.7.6-1.el5.rf.noarch
--> Finished Dependency Resolution

Packages skipped because of dependency problems:
    python-beaker-1.5.3-1.el5.rf.noarch from rpmforge
    python-mako-0.3.5-1.el5.rf.noarch from rpmforge
    python-markupsafe-0.11-1.el5.rf.x86_64 from rpmforge
    python-paramiko-1.7.6-1.el5.rf.noarch from rpmforge