install virtualbox, run as root VirtualBox and create a network adapter (does not work as user). /dev/vboxnetctl and /dev/vboxnet0 exists. Reboot. This will hang for a while, since /dev/vboxnet0 is not present and network.service tries to init network for it. after boot, you can see /dev/vboxnetctl is present, but /dev/vboxnet0 is still missing. This will fail to start any vbox maschine using Host-Only-Network.
Blocks: (none) => 29614
sorry, I've to correct myself - /dev/vboxnet0 never exists - but after running VirtualBox as root and changing the network device (e.g. enable dhcp) the device is present in network (ifconfig). ifup still complains about the missing device /dev/vboxnet0
Assinging to the maintainer of virtualbox
CC: (none) => marja11Assignee: bugsquad => tmb