6.1.28 Does Not Work at All on Kubuntu 20.04.3 LTS

[Hillman]

As reported by several people on your ​forums...

Host: Kubuntu 20.04.03 Guests: (2) Kubuntu 20.04.03 and (1) Windows 10 VB: Version 6.1.28 r147628 (Qt5.12.8) Package: ​https://download.virtualbox.org/virtualbox/6.1.28/virtualbox-6.1_6.1.28-147628~Ubuntu~eoan_amd64.deb

All is well on 6.1.26. Upgrading to 6.1.28 causes all guests to fail on startup, with the following error message.

Failed to open a session for the virtual machine | machine name |

Under "Details", the error contains:

The virtual machine |machine name| has terminated unexpectedly during startup with exit code 1 (0x1).

Result Code:
NS_ERROR_FAILURE (0x80004005)
Component:
MachineWrap
Interface:
IMachine {85632c68-b5bb-4316-a900-5eb28d3413df}

I further attempted to export the guests from 6.1.26, and import them into 6.1.28, but that made no difference.

Downgrading back to 6.1.26 restores correct functionality, so luckily, that's easy. This operation also proves that there's nothing amiss with the machines themselves.

Even worse, newly-created VMs exhibit the same error, so to put it bluntly, 6.1.28 does not work at all on this system.

[galitsyn]

Hi Hillman,

Could you please attach VBox.log and host dmesg output?

[bluedarter]

I believe I have the same issue.

Host: Ubuntu 20.04,
Guest: Windows 10,
VB: VirtualBox Graphical User Interface Version 6.1.28 r147628 ( Qt5.12.8 ),
package: 6.1.28-147628~Ubuntu~eoan amd64

1. The VBox.log file doesn't seem to be updated when this error occurs, unchanged since the last successful use of the VM.

2. I get the "VirtualBox - Error" dialog box with text:

   Failed to open a session for the virtual machine Win10-ovf-imported-seems-to-work.
   
   The virtual machine 'Win10-ovf-imported-seems-to-work' has terminated unexpectedly during startup with exit code 1 (0x1).
   
   Result Code: NS_ERROR_FAILURE (0x80004005)
   Component: MachineWrap
   Interface: IMachine {85632c68-b5bb-4316-a900-5eb28d3413df}
   

3. dmesg has the following, which appears 5 times:

   Oct 30 20:53:53 evies-ubuntu kernel: SUP_IOCTL_COOKIE: Version mismatch. Requested: 0x320000 Min: 0x320000 Current: 0x300000
   

4. Also this dialog box pops up:

[fth0]

The installed VirtualBox kernel modules are from a different (older) VirtualBox version than the installed VirtualBox program.

This usually happens either when you have a mixed installation of Ubuntu and Oracle VirtualBox versions, or when you haven't installed the necessary preconditions (e.g. Linux kernel headers) as described in the VirtualBox User Manual, so that the VirtualBox kernel modules cannot be built during installation. In the latter case, Ubuntu-provided older versions of the VirtualBox kernel modules are used, which Ubuntu automatically installs with a miscellaneous kernel modules package not related to VirtualBox.

Uninstall all VirtualBox packages (the VMs will be kept), reboot, ensure the necessary preconditions and re-install the Oracle version.