8VBoxManage reference
•--pae onoff: This enables/disables PAE (see chapter 3.7.2.2, “Processor” tab, page 48).
•--hwvirtex onoffdefault: This enables or disables the use of hardware virtualization extensions (Intel VT-x or AMD-V) in the processor of your host system; see chapter 1.2, Software vs. hardware virtualization (VT-x and AMD-V), page 11.
•--nestedpaging onoff: If hardware virtualization is enabled, this addi- tional setting enables or disables the use of the nested paging feature in the pro- cessor of your host system; see chapter 1.2, Software vs. hardware virtualization (VT-x and AMD-V), page 11.
•--vtxvpid onoff: If hardware virtualization is enabled, for Intel VT-x only, this additional setting enables or disables the use of the tagged TLB (VPID) fea- ture in the processor of your host system; see chapter 1.2, Software vs. hardware virtualization (VT-x and AMD-V), page 11.
•--accelerate3d onoff: This enables, if the Guest Additions are installed, whether hardware 3D acceleration should be available; see chapter 4.8, Hard- ware 3D acceleration (OpenGL and DirectX 8/9), page 71.
•You can influence the BIOS logo that is displayed when a virtual machine starts up with a number of settings. Per default, a VirtualBox logo is displayed.
With --bioslogofadein onoff and --bioslogofadeout onoff, you can determine whether the logo should fade in and out, respectively.
With --bioslogodisplaytime <msec> you can set how long the logo should be visible, in milliseconds.
With --bioslogoimagepath <imagepath> you can, if you are so inclined, replace the image that is shown, with your own logo. The image must be an uncompressed 256 color BMP file.
•--biosbootmenu disabledmenuonlymessageandmenu: This specifies whether the BIOS allows the user to select a temporary boot device. menuonly suppresses the message, but the user can still press F12 to select a temporary boot device.
•--boot<1-4> nonefloppydvddisknet: This specifies the boot order for the virtual machine. There are four “slots”, which the VM will try to access from 1 to 4, and for each of which you can set a device that the VM should attempt to boot from.
•--snapshotfolder default<path>: This allows you to specify the folder in which snapshots will be kept for a virtual machine.
