can install a guest OS automatically. You only need to provide the installation medium and a few other parameters, such as the name of the default user.

You can perform an unattended guest installation in the following ways:

• Use the Create Virtual Machine wizard. An optional step in the wizard enables you to configure unattended installation. You can specify the default user credentials for the guest OS and also whether to install the Guest Additions automatically. See .

  During this step, scans the installation medium and changes certain parameters to ensure a seamless installation as a guest running on .

• Use the VBoxManage commands. describes how to perform an unattended guest installation for an Oracle Linux guest.

When you first start a VM that has been configured for unattended installation, the guest OS installation is performed automatically.

The installation operation changes the boot device order to boot the virtual hard disk first and then the virtual DVD drive. If the virtual hard disk is empty prior to the automatic installation, the VM boots from the virtual DVD drive and begins the installation.

If the virtual hard disk contains a bootable OS, the installation operation exits. In this case, change the boot device order manually by pressing F12 during the BIOS splash screen.