The DMI data that provides to guests can be changed for a specific VM. Use the following commands to configure the DMI BIOS information. In case your VM is configured to use EFI firmware you need to replace pcbios by efi in the keys.

• DMI BIOS information (type 0)

  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBIOSVendor"        "BIOS Vendor"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBIOSVersion"       "BIOS Version"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBIOSReleaseDate"   "BIOS Release Date"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBIOSReleaseMajor"  1
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBIOSReleaseMinor"  2
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBIOSFirmwareMajor" 3
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBIOSFirmwareMinor" 4

• DMI system information (type 1)

  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiSystemVendor"      "System Vendor"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiSystemProduct"     "System Product"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiSystemVersion"     "System Version"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiSystemSerial"      "System Serial"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiSystemSKU"         "System SKU"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiSystemFamily"      "System Family"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiSystemUuid" \
  "9852bf98-b83c-49db-a8de-182c42c7226b"

• DMI board information (type 2)

  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBoardVendor"       "Board Vendor"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBoardProduct"      "Board Product"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBoardVersion"      "Board Version"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBoardSerial"       "Board Serial"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBoardAssetTag"     "Board Tag"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBoardLocInChass"   "Board Location"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiBoardBoardType"    10

• DMI system enclosure or chassis (type 3)

  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiChassisVendor"     "Chassis Vendor"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiChassisType"       3
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiChassisVersion"    "Chassis Version"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiChassisSerial"     "Chassis Serial"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiChassisAssetTag"   "Chassis Tag"

• DMI processor information (type 4)

  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiProcManufacturer"  "GenuineIntel"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiProcVersion"       "Pentium(R) III"

• DMI OEM strings (type 11)

  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiOEMVBoxVer"        "vboxVer_1.2.3"
  $ VBoxManage setextradata VM-name \
  "VBoxInternal/Devices/pcbios/0/Config/DmiOEMVBoxRev"        "vboxRev_12345"

If a DMI string is not set, the default value of is used. To set an empty string use "<EMPTY>".

Note that in the above list, all quoted parameters (DmiBIOSVendor, DmiBIOSVersion but not DmiBIOSReleaseMajor) are expected to be strings. If such a string is a valid number, the parameter is treated as number and the VM will most probably refuse to start with an VERR_CFGM_NOT_STRING error. In that case, use "string:value". For example:

$ VBoxManage setextradata VM-name \
"VBoxInternal/Devices/pcbios/0/Config/DmiSystemSerial"      "string:1234"

Changing this information can be necessary to provide the DMI information of the host to the guest to prevent Windows from asking for a new product key. On Linux hosts, the DMI BIOS information can be obtained with the following command:

$ dmidecode -t0

The DMI system information can be obtained as follows:

$ dmidecode -t1