No les pasó que tienen archivos comprimidos con rar y no pueden abrirlos ? que debemos instalar ? de que repositorios ?
Instalamos los repositorios yum rpmfusion free y non-free:
$ su -c «rpm -Uvh http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm»
$ su -c «rpm -Uvh http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm»
Instalamos unrar desde los repositorios:
$ su -c «yum install unrar»
Listo !
Hernan Vivani's Blog 
Nooooooooo! Install TheUnarchiver instead! It is free software!
thanks anonymous for your suggestion ! in fact, I was working in The Unarchiver installation under Fedora but I couldn’t get it work yet.
If anyone could do that please let me know.
Thanks again !