Failed to load VMMR0. R0 (VERR_SUPLIB_OWNER_NOT_ROOT).
return code :
NS_ERROR_FAILURE (0x80004005)
component :
Console
interface :
IConsole

ls-l /
drwxr-xr-x 13 ABC test 4096 June 7 2012 usr
found /usr does not belong to root user
solution:
sudo chown root:root /usr/
if it still doesn’t work, check again whether /usr/lib belongs to root and solve with the above method.
Implementation of the USB 2.0 controller not found!
Because the USB 2.0 controller state is part of the saved VM state, the VM cannot be started. To fix this problem, Either install the ‘Oracle VM VirtualBox Extension Pack’ or disable USB 2.0 support in the VM Settings (VERR_NOT_FOUND).

solution install VirtualBox Extension Pack
Download http://download.virtualbox.org/virtualbox/

Oracle VM VirtualBox Extension Pack
VBoxGuestAdditions
the two packages
I install VirtualBox 4.3.20, select download 4.3.20

installation:
VBoxManage extpack Install oracle_vm_extension_pack-4.3.20. Vbox-extpack
virtual machine — device — allocate optical drive — select an optical drive to select the downloaded VBoxGuestAdditions_4.3.20. Iso, the installation will start automatically
sudo modprobe vboxdrv
if it still doesn’t work, check if it’s installed kernel-devel if not, install it

zengming@linux-eshv:~> Sudo/etc/init. D/vboxdrv setup

Recompiling VirtualBox kernel module, NOT. It has had said.
done


zengming@linux-eshv:~> sudo /etc/init.d/vboxdrv restart

redirecting to systemctl restart vboxdrv. Service

Failed to restart vboxdrv.service: Unit vboxdrv.service failed to load: No to the file or directory.// this error may be DKMS is not installed, installed DKMS

author: too handsome to go out programmer: 31843264