I tried installing VirtualBox 6.1 under Debian 11 Bullseye. I followed the tutorial from this answer to Sign virtual box modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) Centos 8. However, I can not allow to disable secure boot and so I follow the second method.

First I create private keys and reboot after importing them with mokutil. I set my password, reboot, follow steps and do as requested. This worked OK.

Then I try signing kernels modules. This is where problems began: modinfo -n vboxdrv, vboxnetflt, vboxnetadp are not found. I go and look for kernels modules using the find command, and I find them (vboxdrv.ko, vboxnetflt.ko, vboxnetadp.ko). So I signed them, and restarted them with systemctl.

Then, second problem. When I start /sbin/vboxconfig, it tells me to sign the vboxdrv, vboxnetflt and vboxnetadp modules. But I just signed them !

I go and execute modinfo -n vboxdrv, vboxnetflt, vboxnetadp again, and here they are found but under a different directory. I tell myself this could be a bug, so I reboot, and after rebooting I'm welcomed with an error message saying something around :

Failed to load options : Invalid Parameter
set_second_stage() failed : Invalid Parameter
Something has gone seriously wrong : shlm_init() failed : Invalid Parameter

I panicked and went into BIOS, checked my boot parameters but did not change a parameter and as nothing changed I reboot. And it worked fine this time. So I go and check modinfo -n vboxdrv, vboxnetflt, vboxnetadp again, and here they are not found.

As you guessed, this now loops. When I boot up, if I don't open BIOS, the error will be outputted again and my laptop won't start.

Also, if this can help, here is the result of dmesg | grep VirtualBox:

[    1.170571] integrity: Loaded X.509 cert 'VirtualBox: 'b9e568a3ad346<something_else>'

The mokutil --list-import command returns my created key as the second key, so I would say it is correctly loaded and imported.

Please help me as I could not find any other topics related to this error, I did not change any boot parameters but I get this nasty error on bootup now!

If required I can edit my question to provide more information.

1 Answer 1


Using the following mokutil commands, I could fix my problem.

(in any directory, if you deleted your .der key file)
mokutil -l (check which key you want to delete)
mokutil --export (dumps the keys in numbered files, do NOT delete the wrong key)
mokutil --delete key_name_here (password prompt, note it somewhere)

On reboot, you'll be granted my an error similar to the second_stage() one, but simply boot into BIOS, don't change anything and simply reboot. You will be prompted with the mokutil menu.

However VirtualBox still is not signed.

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