virtualbox.org

Hello

To install additions i must do this on terminal:
yum -y install kernel-devel kernel-headers dkms gcc gcc-c++

When install additions i have this message:
Verifying archive integrity... All good.
Uncompressing VirtualBox 5.0.22 Guest Additions for Linux............
VirtualBox Guest Additions installer
Removing installed version 5.0.22 of VirtualBox Guest Additions...
Removing existing VirtualBox DKMS kernel modules[ OK ]
Removing existing VirtualBox non-DKMS kernel modules[ OK ]
Copying additional installer modules ...
Installing additional modules ...
Removing existing VirtualBox DKMS kernel modules[ OK ]
Removing existing VirtualBox non-DKMS kernel modules[ OK ]
Building the VirtualBox Guest Additions kernel modules
The headers for the current running kernel were not found. If the following
module compilation fails then this could be the reason.
The missing package can be probably installed with
yum install kernel-devel-3.16.3-200.fc20.x86_64

Building the main Guest Additions module[FAILED]
(Look at /var/log/vboxadd-install.log to find out what went wrong)
Doing non-kernel setup of the Guest Additions[ OK ]
Press Return to close this window...
^CSignal caught, cleaning up
Press Return to close this window...

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And in terminal i have this error:
sudo yum install kernel-devel-3.16.3-200.fc20.x86_64
Loaded plugins: langpacks, refresh-packagekit
No package kernel-devel-3.16.3-200.fc20.x86_64 available.
Error: Nothing to do

How i can install additions?

This should help Howto: Install Linux Guest Additions