I rebooted fedora.
Startup showed a critical error; startup from command line with --debug flag showed the following:
Code: Select all
[yak ~]$ VirtualBox --debug
Wrong owner (500) of '/tmp/.vbox-yak-ipc'.
Wrong owner (500) of '/tmp/.vbox-yak-ipc'.
Once I changed /tmp/.vbox* to the correct userid and gropu vboxusers, then VirtualBox came up. Unfortunately, I will always need to do this - it seems to be a bug (wrong userid).