Found an issue that I think is a regressions, or at least, I don't remember it happen before.

When installing, usually the older kernel drivers are uninstalled an the new kernel drivers are installed. But this time, I was left with a mix of old an new drivers. The result of this, is that VirtualBox complains about a version mismatch.

here is the message displayed by VirtualBox when I try to start a Mageia 6 guest:
> RTR3InitEx failed with rc=-1912 (rc=-1912)
> The VirtualBox kernel modules do not match this version of VirtualBox. The installation of VirtualBox was apparently not successful. Executing
> '/sbin/vboxconfig'
> may correct this. Make sure that you do not mix the OSE version and the PUEL version of VirtualBox.
> where: supR3HardenedMainInitRuntime what: 4 VERR_VM_DRIVER_VERSION_MISMATCH (-1912) - > The installed support driver doesn't match the version of the user. 


This is the dkms status right after installing the new VB packages:

$ dkms status | egrep virtualbox.*4.14.20
virtualbox, 5.2.6-1.mga6, 4.14.20-desktop-1.mga6, x86_64: installed 
virtualbox, 5.2.8-1.mga6, 4.14.20-desktop-1.mga6, x86_64: installed-binary from 4.14.20-desktop-1.mga6


Removing the old driver from the kernel and reloading the vbox* kernel modules fixes the problem.

$ dkms uninstall -m virtualbox -v 5.2.6-1.mga6 -k 4.14.20-desktop-1.mga6

-------- Uninstall Beginning --------
Module:  virtualbox
Version: 5.2.6-1.mga6
Kernel:  4.14.20-desktop-1.mga6 (x86_64)
-------------------------------------

Status: Before uninstall, this module version was ACTIVE on this kernel.

vboxdrv.ko.xz:
 - Uninstallation
   - Deleting from: /lib/modules/4.14.20-desktop-1.mga6/dkms/3rdparty/vbox/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

vboxnetflt.ko.xz:
 - Uninstallation
   - Deleting from: /lib/modules/4.14.20-desktop-1.mga6/dkms/3rdparty/vbox/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

vboxnetadp.ko.xz:
 - Uninstallation
   - Deleting from: /lib/modules/4.14.20-desktop-1.mga6/dkms/3rdparty/vbox/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

vboxpci.ko.xz:
 - Uninstallation
   - Deleting from: /lib/modules/4.14.20-desktop-1.mga6/dkms/3rdparty/vbox/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.
depmod.....

DKMS: uninstall Completed.
$ rmmod vboxpci vboxnetadp vboxnetflt vboxdrv
$ modprobe vboxpci ; modprobe vboxnetadp ; modprobe vboxnetflt
$ lsmod | grep vbox
vboxnetflt             32768  0
vboxnetadp             28672  0
vboxpci                28672  0
vboxdrv               483328  4 vboxnetadp,vboxnetflt,vboxpci

CC: (none) => mageia

That looks like you have both the prebuilt virtualbox-kernel* and the dkms-virtualbox package installed, but when you installed the updated virtualbox packages, you didn't install the new dkms-virtualbox package, so you got a mismatch...

Thanks Thomas. That was it. Somehow (probably my mistake), the dkms-virtualbox package was not installed the first time.

Installed and tested without issues (the second time :-) ).

Host system: Mageia 6, x86_64, Plasma DE, Intel CPU, nVidia GPU using nvidia340 proprietary driver.

Tested using the guests:
- Windows 10
- Windows 7
- Windows XP
- Mageia 6
- Easy2Boot (booting systemrescuecd 5, booting Mageia 6 LiveDVD Plasma DE)

Tests included:
- minimal use;
- using firefox to browse some sites and seeing some videos;
- updating the system;
- updating VB additions.

$ rpm -qa | egrep -i 'virtualbox|vbox|kernel|dkms' | sort
dkms-2.0.19-39.mga6
dkms-minimal-2.0.19-39.mga6
dkms-nvidia340-340.106-1.mga6.nonfree
dkms-virtualbox-5.2.8-1.mga6
kernel-desktop-4.14.20-1.mga6-1-1.mga6
kernel-desktop-devel-4.14.20-1.mga6-1-1.mga6
kernel-desktop-devel-latest-4.14.20-1.mga6
kernel-desktop-latest-4.14.20-1.mga6
kernel-firmware-20170531-1.mga6
kernel-firmware-nonfree-20180211-1.mga6.nonfree
kernel-userspace-headers-4.14.20-1.mga6
virtualbox-5.2.8-1.mga6
virtualbox-doc-5.1.30-1.mga6
virtualbox-kernel-4.14.20-desktop-1.mga6-5.2.8-1.mga6
virtualbox-kernel-desktop-latest-5.2.8-1.mga6

Mageia 6 i586 on kernel-desktop-4.14.22

Preparing...                     ##########################################
      1/5: dkms-minimal          ##########################################
      2/5: virtualbox-kernel-4.14.20-desktop-1.mga6
                                 ##########################################
      3/5: virtualbox-kernel-desktop-latest
                                 ##########################################
      4/5: virtualbox-doc        ##########################################
      5/5: virtualbox            ##########################################

vboxdrv.ko.xz:
 - Installation
   - Installing to /lib/modules/4.14.20-desktop-1.mga6/dkms-binary/3rdparty/vbox/

vboxnetflt.ko.xz:
 - Installation
   - Installing to /lib/modules/4.14.20-desktop-1.mga6/dkms-binary/3rdparty/vbox/

vboxnetadp.ko.xz:
 - Installation
   - Installing to /lib/modules/4.14.20-desktop-1.mga6/dkms-binary/3rdparty/vbox/

vboxpci.ko.xz:
 - Installation
   - Installing to /lib/modules/4.14.20-desktop-1.mga6/dkms-binary/3rdparty/vbox/

depmod.....

DKMS: install Completed.
virtualbox, 5.2.8-1.mga6, 4.14.20-desktop-1.mga6, i586: installed-binary from 4.14.20-desktop-1.mga6
+ /usr/sbin/rmmod vboxpci
+ /usr/sbin/rmmod vboxnetflt
+ /usr/sbin/rmmod vboxnetadp
+ /usr/sbin/rmmod vboxdrv
+ /usr/sbin/modprobe vboxdrv
+ /usr/sbin/modprobe vboxnetflt
+ /usr/sbin/modprobe vboxnetadp
+ /usr/sbin/modprobe vboxpci
+ :

I get this error: Virtualbox Error in sublibOsInit

Kernel driver not installed (rc=-1908)

The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv. Please reinstall the kernel module by executing

'/sbin/vboxconfig'

as root.

where: suplibOsInit what: 3 VERR_VM_DRIVER_NOT_INSTALLED (-1908) - The support driver is not installed. On linux, open returned ENOENT.

CC: (none) => westel

(In reply to ben mcmonagle from comment #5)

> I get this error: Virtualbox Error in sublibOsInit
> 
> Kernel driver not installed (rc=-1908)

This is because of:

> 
> Mageia 6 i586 on kernel-desktop-4.14.22
> 

You are runnign the 4.14.22 from testing...


> Preparing...                     ##########################################
>       1/5: dkms-minimal          ##########################################
>       2/5: virtualbox-kernel-4.14.20-desktop-1.mga6
>                                  ##########################################
>       3/5: virtualbox-kernel-desktop-latest
>                                  ##########################################
>       4/5: virtualbox-doc        ##########################################
>       5/5: virtualbox            ##########################################
> 

And here only the prebuilt module for 4.14.20 is installed (as there is no prebuilt kmods for the testing kernel).

so you need to install dkms-virtualbox and the 4.14.22 kernel-devel package if you want to test with that kernel...

thanks for the info Thomas

Part #2

Mageia6 kernel-desktop-4.14.20-1.mga6

(added vboxuser to user group and rebooted)

basic tests ok

booted existing virtualbox system

Firefox  Youtube video playback (big buck bunny) sound and video -ok
connected usb device, transferred file from and to -ok, disconnected ok

$  rpm -qa | egrep -i 'virtualbox|vbox|kernel|dkms' | sort
dkms-minimal-2.0.19-39.mga6
kernel-desktop-4.14.20-1.mga6-1-1.mga6
kernel-firmware-20170531-1.mga6
kernel-firmware-nonfree-20180211-1.mga6.nonfree
virtualbox-5.2.8-1.mga6
virtualbox-doc-5.1.30-1.mga6
virtualbox-kernel-4.14.20-desktop-1.mga6-5.2.8-1.mga6
virtualbox-kernel-desktop-latest-5.2.8-1.mga6

Whiteboard: (none) => mga6-32-ok

on mga6-64 plasma 4.14.20-desktop

packages installed cleanly:
- virtualbox-5.2.8-1.mga6.x86_64
- virtualbox-kernel-4.14.20-desktop-1.mga6-5.2.8-1.mga6.x86_64
- virtualbox-kernel-desktop-latest-5.2.8-1.mga6.x86_64

virtualbox and clients (mga6-32, win7, winxp) launched normally
proprietary extension pack installed cleanly

OK for mga6-64

CC: (none) => jim

on mga6-32 in a vbox VM 4.14.20-desktop plasma

packages installed cleanly:
- vboxadditions-kernel-4.14.20-desktop-1.mga6-5.2.8-1.mga6.i586
- vboxadditions-kernel-desktop-latest-5.2.8-1.mga6.i586
- virtualbox-guest-additions-5.2.8-1.mga6.i586
- x11-driver-video-vboxvideo-5.2.8-1.mga6.i586

VM re-started normally

USB devices - OK
shared folders - OK

no regressions noted

OK for mga6-32 in a vbox VM

Advisory uploaded. mga6 64 OK from above. Validating.

Over to you to push to _updates_ Thomas (Not Backports).

Keywords: (none) => advisory, validated_update
Whiteboard: mga6-32-ok => mga6-32-ok mga6-64-ok
CC: (none) => sysadmin-bugs

Mageia 6 :: x86_64

Core backports testing:
- dkms-virtualbox-5.2.8-1.mga6.noarch
- vboxadditions-kernel-4.14.20-desktop-1.mga6-5.2.8-1.mga6.x86_64
- vboxadditions-kernel-desktop-latest-5.2.8-1.mga6.x86_64
- virtualbox-5.2.8-1.mga6.x86_64
- virtualbox-kernel-4.14.20-desktop-1.mga6-5.2.8-1.mga6.x86_64
- virtualbox-kernel-desktop-latest-5.2.8-1.mga6.x86_64

then by hand:
dkms-vboxadditions
python-virtualbox
virtualbox-devel
virtualbox-guest-additions
x11-driver-video-vboxvideo

Booted a 32-bit Mageia 5.1 guest -using nomodeset (not a regression - it is always needed).
Logged in to Mate desktop - all is well.

Mageia 5.1 x86_64 guest - nomodeset.  Mate running fine.

Mageia 5.1 i586 guest - straight boot.  Tried GNOME Classic and GNOME desktops.  Both working.

OK for 64-bit.

CC: (none) => tarazed25

An update for this issue has been pushed to the Mageia Updates repository.

https://advisories.mageia.org/MGAA-2018-0045.html

Resolution: (none) => FIXED
Status: NEW => RESOLVED