I upgraded a virtualbox from lubuntu 17.10 to 18.04. On reboot, X doesn't start, though I can enter the console via -F1. Attempting to restart doesn't result in anything obviously interesting in /var/log/Xorg.0.log or ~/.xsession-errors, which I have included below.There is console message when I run systemctl restart display-manager, though, `[drm:vbox_bo_unpin [vboxvideo]]

EDIT: I removed the diagnostic output; please see the answer below.

The problem turned out to be that I was running 16.04 on the host, which was getting me virtualbox-5.1. Upgrading to 5.2 on the host fixed my problem.

Your Answer

 

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.