Just confirming that after running into this issue I purged virtualbox-6.1, added the repository, and installed 6.1.16 and was able to move forward. So #12 and #15 helped me get things working again. I agree with @stamster that it would be good to get 20.04 LTS bumped to virtualbox 6.1.16.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1899233 Title: post login - no apps launched - virtualbox-dkms 6.1.10-dfsg-1~ubuntu1.20.04.1: virtualbox kernel module failed to build To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1899233/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs