While talking with my fellow colleague Darren Birkett about what seems a design limitation
of yum to not be able to force listing the excludes from yum. I had a
shoot to make a yum plugin to force listing the excludes.
Here is how it works :
root@centos5:~> grep exclude /etc/yum.conf
exclude=rpm*
root@centos5:~> yum install rpm-devel
Loading “installonlyn” plugin
Loading “changelog” plugin
Loading “chmouel” [...]

Something that i haven’t find via goole. By default on RedHat (and derivatives) if you get a dark background the colored ls will be seen really humm bold from a xterm (since i guess there default gnome-terminal has been configured to have a white background ).
The solution is to

cp /etc/DIR_COLORS /etc/DIR_COLORS.xterm

or to redefine your [...]