mognite@DATA ~$ su -
Password:
[root@DATA ~]# yum install VirtualBox-guest.x86_64
Loaded plugins: fastestmirror, langpacks, presto, refresh-packagekit, tidy-cache
Loading mirror speeds from cached hostfile
 * fedora: mirror.optus.net
 * rpmfusion-free: mirror.transact.net.au
 * rpmfusion-free-updates: mirror.transact.net.au
 * rpmfusion-nonfree: mirror.transact.net.au
 * rpmfusion-nonfree-updates: mirror.transact.net.au
 * updates: mirror.optus.net
Resolving Dependencies
--> Running transaction check
---> Package VirtualBox-guest.x86_64 0:4.2.0-3.fc17 will be installed
--> Processing Conflict: VirtualBox-4.2.0-3.fc17.x86_64 conflicts VirtualBox-guest <= 4.2.0-3.fc17
--> Processing Conflict: VirtualBox-guest-4.2.0-3.fc17.x86_64 conflicts VirtualBox <= 4.2.0-3.fc17
--> Finished Dependency Resolution
Error: VirtualBox conflicts with VirtualBox-guest-4.2.0-3.fc17.x86_64
Error: VirtualBox-guest conflicts with VirtualBox-4.2.0-3.fc17.x86_64
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest
[root@DATA ~]#