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I installed the latest kernel with this script but now my VirtualBox doesn't work. When I start the current kernel 4.13.0-17 and run 

sudo dpkg-reconfigure virtualbox-dkms

VirtualBox runs fine, so I guess I need the signed kernel too (as described here), but how do I install it for the latest kernel?

Edit: for 4.14.1 it sais

Building initial module for 4.14.1-041401-generic
ERROR (dkms apport): kernel package linux-headers-4.14.1-041401-generic is not supported
Error! Bad return status for module build on kernel: 4.14.1-041401-generic (x86_64)
Consult /var/lib/dkms/virtualbox/5.1.30/build/make.log for more information.
rubo77
  • 32,486
  • does VB have any kernel modules that need to be compiled to the new kernel? – ravery Nov 23 '17 at 11:39
  • yes, for 4.13.0-17 it sais "DKMS: install completed.", for 4.14.1 see above... – rubo77 Nov 23 '17 at 11:41
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    Canonical only signs the official Ubuntu kernels. – fkraiem Nov 23 '17 at 11:44
  • apparently there was a change in the headers, VB won't compile for 4.14, or at least dkms doesn't want to compile for it. – ravery Nov 23 '17 at 11:48
  • https://www.virtualbox.org/ticket/17080 seems like I have to install a newer VB verison then too? maybe I don't need the signed-kernel then. What are "official Ubuntu kernels" I thought non-rc kernels would be official? – rubo77 Nov 23 '17 at 11:59
  • official kernels are the ones in the repo. Daily builds of mainline aren't official. – ravery Nov 23 '17 at 14:37
  • So which one is the latest official release? – rubo77 Nov 23 '17 at 18:01

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