Revision 24 as of 2016-04-25 16:20:08

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About this Howto

The goal is have a place with all information that is FAQ.

Quick install

Since F22+ we don't have pre-built kmods we need use akmods.

Please do:

    dnf install VirtualBox kernel-devel-$(uname -r) akmod-VirtualBox
    systemctl restart systemd-modules-load.service
    dmesg | grep -i vbox


    [ 2870.556703] vboxdrv: module verification failed: signature and/or required key missing - tainting kernel
    [ 2870.565213] vboxdrv: Found 2 processor cores
    [ 2870.571315] vboxdrv: fAsync=0 offMin=0x1c2 offMax=0xa5f
    [ 2870.671515] vboxdrv: TSC mode is Synchronous, tentative frequency 3000795689 Hz
    [ 2870.671519] vboxdrv: Successfully loaded version 5.0.6_ (interface 0x00240000)
    [ 2870.671946] VBoxNetFlt: Successfully started.
    [ 2870.672227] VBoxNetAdp: Successfully started.

Sign kernel modules to work with secure boot

To sign kernel modules to make work with secure boot, this 2 posts are a good reference, I haven't test my self:

or google for "virtualbox fedora secure boot" ,

Install VirtualBox_Extension_Pack

1- if you don't need usb or just for testing , go to setting usb and disable usb , for that you have to have vm machine off .

2 - with firefox click here : firefox should ask if you want install with vbox something , say yes

3 - after try file -> check for updates , also should install the correct extpackage

if this doesn't do nothing because you install a superior version

rm -rf /usr/lib64/virtualbox/ExtensionPacks/Oracle_VM_VirtualBox_Extension_Pack as root , and repeat items 2 and 3

anyway , you should use file -> check for updates to update extension pack

Upgrade VirtualBox version without reboot

On upgrade VirtualBox for a new release, we need remove kernel modules loaded and load new ones (for the new release).

    dnf update VirtualBox kernel-devel-$(uname -r) akmod-VirtualBox

    # User is advised to run this after upgrades
    /sbin/modprobe -r -b vboxnetflt
    /sbin/modprobe -r -b vboxnetadp
    /sbin/modprobe -r -b vboxdrv
    /sbin/modprobe -r -b vboxpci
    /sbin/modprobe -r -b vboxdrv

    systemctl restart systemd-modules-load
    dmesg | grep -i vbox

if you run an upgrade version don't forget update also VirtualBox_Extension_Pack (if you have it installed)

Fedora as a Virtual Machine

Install VirtualBox-guest. VirtualBox-guest replaces !VBoxGuestAdditions for Fedora itself, VirtualBox-guest is just to install in a vm guest system, You can't install VirtualBox-guest in a host system. Therefore VirtualBox-guest conflicts with VirtualBox by design.

RPMFusion doesn't provide VBoxGuestAdditions for others OS , you have to download it , you have a button for that in VirtualBox, vm manager menu.

    dnf install VirtualBox-guest kernel-devel-$(uname -r) 
    systemctl restart systemd-modules-load
    systemctl restart vboxservice

In the last lines should see soemthing like :

[ 1907.370440] VBoxService 5.0.17_ r105877 (verbosity: 0) linux.amd64 (Apr  1 2016 05:26:22) release log
               00:00:00.000103 main     Log opened 2016-04-02T01:32:31.428335000Z
[ 1907.370508] 00:00:00.000250 main     OS Product: Linux
[ 1907.370550] 00:00:00.000291 main     OS Release: 4.5.0-0.rc7.git0.2.fc24.x86_64
[ 1907.370849] 00:00:00.000575 main     OS Version: #1 SMP Tue Mar 8 02:20:08 UTC 2016
[ 1907.371947] 00:00:00.000708 main     Executable: /usr/bin/VBoxService
               00:00:00.000711 main     Process ID: 3002
               00:00:00.001639 main     Package type: LINUX_64BITS_GENERIC (OSE)
[ 1907.374751] 00:00:00.004436 main     5.0.17_ r105877 started. Verbose level = 0

I had install kernel-debug-devel but I need kernel-devel

When we install only VirtualBox  dnf install VirtualBox  it require one kmod so it pulls akmod-VirtualBox (we, at this moment, don't have binary kmods) and also may pulls in kernel-debug-devel instead of kernel-devel (of the running kernel) [1]. We need the kernel-devel of kernel that is running on the system but we can't workaround this problem. So we need make sure that install proper kernel-devel (usually the kernel-devel).


   dnf install kernel-devel-$(uname -r)
   dnf remove kernel-debug-devel