# yum --disablerepo "*" --enablerepo "virtualbox" list available Loaded plugins: aliases, changelog, fastestmirror, langpacks, verify Loading mirror speeds from cached hostfile Available Packages VirtualBox-4.3.x86_64 4.3.40_110317_el7-1 virtualbox VirtualBox-5.0.x86_64 5.0.40_115130_el7-1 virtualbox VirtualBox-5.1.x86_64 5.1.38_122592_el7-1 virtualbox