Comment 3 for bug 1906110

BTW, the kernel I've been running through all this is the default ubuntu 20.04 version:
$ uname -a
Linux dancer.chaosreigns.com 5.4.0-54-generic #60-Ubuntu SMP Fri Nov 6 10:37:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

With kernel 5.8.0 removed, it looks like I'm hitting a new bug:

$ sudo apt remove linux-headers-5.8.0-25 linux-headers-5.8.0-25-generic linux-modules-5.8.0-25-generic
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  linux-headers-5.8.0-25 linux-headers-5.8.0-25-generic linux-headers-generic linux-modules-5.8.0-25-generic
0 upgraded, 0 newly installed, 4 to remove and 3 not upgraded.
3 not fully installed or removed.
After this operation, 165 MB disk space will be freed.
Do you want to continue? [Y/n]
(Reading database ... 599496 files and directories currently installed.)
Removing linux-headers-generic (5.8.0.25.30) ...
Removing linux-headers-5.8.0-25-generic (5.8.0-25.26) ...
Removing linux-headers-5.8.0-25 (5.8.0-25.26) ...
Removing linux-modules-5.8.0-25-generic (5.8.0-25.26) ...
Setting up virtualbox-dkms (6.1.10-dfsg-1~ubuntu1.20.04.1) ...
Removing old virtualbox-6.1.10 DKMS files...

-------- Uninstall Beginning --------
Module: virtualbox
Version: 6.1.10
Kernel: 5.4.0-54-generic (x86_64)
-------------------------------------

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

vboxdrv.ko:
 - Uninstallation
   - Deleting from: /lib/modules/5.4.0-54-generic/updates/dkms/
 - 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:
 - Uninstallation
   - Deleting from: /lib/modules/5.4.0-54-generic/updates/dkms/
 - 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:
 - Uninstallation
   - Deleting from: /lib/modules/5.4.0-54-generic/updates/dkms/
 - 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.

------------------------------
Deleting module version: 6.1.10
completely from the DKMS tree.
------------------------------
Done.
Loading new virtualbox-6.1.10 DKMS files...
Building for 5.4.0-54-generic
Building initial module for 5.4.0-54-generic
Done.

vboxdrv.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.4.0-54-generic/updates/dkms/

vboxnetadp.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.4.0-54-generic/updates/dkms/

vboxnetflt.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.4.0-54-generic/updates/dkms/

depmod...

DKMS: install completed.
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 Sat 2020-11-28 11:04:04 EST; 3ms ago
       Docs: man:systemd-sysv-generator(8)
    Process: 1152416 ExecStart=/etc/init.d/virtualbox start (code=exited, status=1/FAILURE)

Nov 28 11:04:04 dancer.chaosreigns.com systemd[1]: Starting LSB: VirtualBox Linux kernel module...
Nov 28 11:04:04 dancer.chaosreigns.com virtualbox[1152416]: * Loading VirtualBox kernel modules...
Nov 28 11:04:04 dancer.chaosreigns.com virtualbox[1152416]: * No suitable vboxpci module for running kernel found
Nov 28 11:04:04 dancer.chaosreigns.com virtualbox[1152416]: ...fail!
Nov 28 11:04:04 dancer.chaosreigns.com systemd[1]: virtualbox.service: Control process exited, code=exited, status=1/FAILURE
Nov 28 11:04:04 dancer.chaosreigns.com systemd[1]: virtualbox.service: Failed with result 'exit-code'.
Nov 28 11:04:04 dancer.chaosreigns.com systemd[1]: Failed to start LSB: VirtualBox Linux kernel module.
Setting up virtualbox (6.1.10-dfsg-1~ubuntu1.20.04.1) ...
Installing new version of config file /etc/init.d/virtualbox ...
vboxweb.service is a disabled or a static unit not running, not starting it.
Setting up virtualbox-qt (6.1.10-dfsg-1~ubuntu1.20.04.1) ...
Processing triggers for systemd (245.4-4ubuntu3.3) ...
Processing triggers for ureadahead (0.100.0-21) ...
Processing triggers for menu (2.1.47ubuntu4) ...
$