virtualbox-dkms 6.1.10-dfsg-1~ubuntu1.20.04.1: virtualbox kernel module failed to build

[Alessandro candeloro]

after installing virtual box: `sudo apt install virtualbox` there seemed to be an error with my kernel: `kernel headers for this kernel does not seem to be installed.`.

I installed the headers: `sudo apt-get install linux-headers-5.8.0-33-generic` and wen trying to `sudo dpkg-reconfigure virtualbox-dkms` there is an error:

```
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/virtualbox-dkms.0.crash'
Error! Bad return status for module build on kernel: 5.8.0-33-generic (x86_64)
Consult /var/lib/dkms/virtualbox/6.1.10/build/make.log for more information.

```

and after `sudo dpkg-reconfigure virtualbox`:

```
Job for vboxweb.service failed because the service did not take the steps required by its unit configuration.
See "systemctl status vboxweb.service" and "journalctl -xe" for details.
Job for virtualbox.service failed because the control process exited with error code.
See "systemctl status virtualbox.service" and "journalctl -xe" for details.
invoke-rc.d: initscript virtualbox, action "restart" failed.
● virtualbox.service - LSB: VirtualBox Linux kernel module
     Loaded: loaded (/etc/init.d/virtualbox; generated)
     Active: failed (Result: exit-code) since Fri 2020-12-18 22:39:07 CET; 5ms ago
       Docs: man:systemd-sysv-generator(8)
    Process: 42222 ExecStart=/etc/init.d/virtualbox start (code=exited, status=1/FAILURE)

dic 18 22:39:07 chale-MS systemd[1]: Starting LSB: VirtualBox Linux kernel module...
dic 18 22:39:07 chale-MS virtualbox[42222]: * Loading VirtualBox kernel modules...
dic 18 22:39:07 chale-MS virtualbox[42222]: * No suitable module for running kernel found
dic 18 22:39:07 chale-MS virtualbox[42222]: ...fail!
dic 18 22:39:07 chale-MS systemd[1]: virtualbox.service: Control process exited, code=exited, status=1/FAILURE
dic 18 22:39:07 chale-MS systemd[1]: virtualbox.service: Failed with result 'exit-code'.
dic 18 22:39:07 chale-MS systemd[1]: Failed to start LSB: VirtualBox Linux kernel module.

```

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: virtualbox-dkms 6.1.10-dfsg-1~ubuntu1.20.04.1
ProcVersionSignature: Ubuntu 5.8.0-33.36~20.04.1-generic 5.8.17
Uname: Linux 5.8.0-33-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.14
Architecture: amd64
CasperMD5CheckResult: skip
DKMSKernelVersion: 5.8.0-33-generic
Date: Fri Dec 18 22:29:02 2020
DuplicateSignature: dkms:virtualbox-dkms:6.1.10-dfsg-1~ubuntu1.20.04.1:/var/lib/dkms/virtualbox/6.1.10/build/vboxdrv/r0drv/linux/memobj-r0drv-linux.c:596:43: error: ‘struct mm_struct’ has no member named ‘mmap_sem’; did you mean ‘mmap_base’?
InstallationDate: Installed on 2020-12-18 (0 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
PackageVersion: 6.1.10-dfsg-1~ubuntu1.20.04.1
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2ubuntu0.2
SourcePackage: virtualbox
Title: virtualbox-dkms 6.1.10-dfsg-1~ubuntu1.20.04.1: virtualbox kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)

[Alessandro candeloro (c4chale)]

Solved the issue by downloading and installing virtual box from https://www.virtualbox.org/wiki/Linux_Downloads

[Gianfranco Costamagna (costamagnagianfranco)]

There is already a pending fix and an open bug for this. Will be fixed with the 6.1.16 version soon