Using ‘html’ option in SP.UI.ModalDialog.showModalDialog

I was trying to use SP.UI.ModalDialog.showModalDialog with html option using the below code:

var options = {
    title: "Title",
    width: 400,
    height: 600,
    html: "Content of dialog"
};
SP.UI.ModalDialog.showModalDialog(options);

But I was running into this weird error:

Sharing folders between Windows (host) and Ubuntu (guest) in VirtualBox

I have Windows 8 installed with Ubuntu 12.04 in Oracle VM VirtualBox and quite a few times I want to share files between them. For that, first you need to install VirtualBox Guest Additions for Linux. Guest additions consist of device drivers and system applications that optimize the guest operating system for better performance and usability.

To install Guest Additions go to Ubuntu Launcher and you would see VBOXADDITIONS_X.X.X_XXXX mounted.