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Host-only-network error in OS X Mavericks 10.9

After upgrading OS X to latest version (10.9.3), I have faced with a problem that virtual box was not able to create host only networks anymore. This is the error log printed if a host-only-network is tried to be created:


Failed to create the host-only network interface.

VBoxNetAdpCtl: Error while adding new interface: failed to open /dev/vboxnetctl: No such file or directory.
After some research, I saw that this is a virtualbox bug. The reason is that StartupItems no longer exist in Mac OS 10.9 Mavericks. It is depraceated 8 years ago. Until this bug is solved, a temporary solution is: 

sudo /Library/StartupItems/VirtualBox/VirtualBox stop

sudo /Library/StartupItems/VirtualBox/VirtualBox start
Then, you can open Virtualbox application. In network tab, all host only networks will be listed. You can also check it via 'ifconfig' command. You can see the related virtualbox ticket on this link.
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