Restart VirtualBox on OSX

restart-virtualbox-osx

If you need to restart VirtualBox.

This fixes an issue such as:
There was an error while executing `VBoxManage`, a CLI used by Vagrant
for controlling VirtualBox. The command and stderr is shown below.

Command: ["hostonlyif", "create"]

sudo /Library/Application\ Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh restart

xiaods at XiaoTommydeMacBook-Pro in ~/Documents/Code/mesos-projects
$ sudo /Library/Application\ Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh restart
Loading VBoxDrv.kext
/Library/Application Support/VirtualBox/VBoxDrv.kext failed to load - (libkern/kext) kext (kmod) start/stop routine failed; check the system/kernel logs for errors or try kextutil(8).
Error: Failed to load /Library/Application Support/VirtualBox/VBoxDrv.kext
Loading VBoxUSB.kext
/Library/Application Support/VirtualBox/VBoxUSB.kext failed to load - (libkern/kext) dependency load failed; check the system/kernel logs for errors or try kextutil(8).
Error: Failed to load /Library/Application Support/VirtualBox/VBoxUSB.kext
Loading VBoxNetFlt.kext
/Library/Application Support/VirtualBox/VBoxNetFlt.kext failed to load - (libkern/kext) dependency load failed; check the system/kernel logs for errors or try kextutil(8).
Error: Failed to load /Library/Application Support/VirtualBox/VBoxNetFlt.kext
Loading VBoxNetAdp.kext
/Library/Application Support/VirtualBox/VBoxNetAdp.kext failed to load - (libkern/kext) dependency load failed; check the system/kernel logs for errors or try kextutil(8).
Error: Failed to load /Library/Application Support/VirtualBox/VBoxNetAdp.kext
(kernel) Kext org.virtualbox.kext.VBoxNetAdp not found for unload request.
Failed to unload org.virtualbox.kext.VBoxNetAdp - (libkern/kext) not found.
(kernel) Kext org.virtualbox.kext.VBoxNetFlt not found for unload request.
Failed to unload org.virtualbox.kext.VBoxNetFlt - (libkern/kext) not found.
(kernel) Kext org.virtualbox.kext.VBoxUSB not found for unload request.
Failed to unload org.virtualbox.kext.VBoxUSB - (libkern/kext) not found.
Fatal error: VirtualBox

It's the same for me.

It's the same for me. This work for me : System Preferences–> Security and Privacy shows: System software from developer “Oracle America, Inc” has been updated (Allow box on right is inoperative), then reboot.