DKMS does not support multiple kernels -> fixed in 5.1 and later releases

[prensing]

The way DKMS is used on Linux does not support multiple kernels on the same machine. This is true both through "/etc/init.d/vboxdrv setup" and "do_dkms install".

The problem is that do_dkms first uninstalls *all* instances of the kernel modules across all kernel versions. Then it only builds/installs the modules for the current kernel. If you reboot to a different kernel, vboxdrv is not there; if you use the existing scripts, the modules for the other kernel will be gone when you come back to it.

[aeichner]

Please reopen if still relevant with a recent VirtualBox release.

[miguelnegrao]

Still happening on version 5.0.24. Why doesn't virtualbox generate kernel modules for all installed kernels ?

[Michael Thayer]

This should work for 5.1 releases. The fix will not be back-ported to 5.0. 5.1 does not use DKMS at all, but it uses the same hooks to build the modules when a new kernel is installed.