[Pkg-virtualbox-devel] Bug#836965: virtualbox-5.1: No VM starts, only error "RCR3initEx failed with rc=-1912"

[Gianfranco Costamagna]

Hi, can you please provide more details?

(sorry for the late answer)

>When I start an VM, I am getting the message mentioned in the subject, but also
>another error with
><quote>
>Für die virtuelle Maschine pfSense konnte keine neue Sitzung eröffnet werden.
>
>The virtual machine 'pfSense' has terminated unexpectedly during startup with
>exit code 1 (0x1).
>
>Fehlercode:NS_ERROR_FAILURE (0x80004005)
>Komponente:MachineWrap
>Interface:IMachine {b2547866-a0a1-4391-8b86-6952d82efaa0}
></quote>
>... :(
>

>

>Trying to find a solution in the web, trying to reinstall all installed>virtualbox packages (virtualbox, virtualbox-guest-dkms, virtualbox-guest-utils,
>virtualbox-guest-x11, virtualbox-guest-additions-iso and virtualbox-qt),
>changing all /dev/vbox files with "chmod 666 /dev/vbox*" (a tip I found
>somewhere in the web) did not change anything ... :(


please remove all the virtualbox-guest-utils virtualbox-guest-dkms and virtualbox-guest-x11
(they are needed inside the VM, not outside)

and do
apt-get install --reinstall virtualbox virtualbox-dkms and post the result
here
(or a simple
dpkg-reconfigure virtualbox-dkms)

after that an
lsmod |grep vbox

and 

find /lib/modules/ -name "*vbox*.ko*" -exec modinfo "{}" \;

this will give me a clue about the kernel module build, and the reason for having a bad /dev/vbox* device

also
ls /dev/vboxdrv -l

and last thing:
dpkg-query -l |grep virtualbox


thanks,

G.