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OpenCore Configuration

PlatformNVRAM Properties

  1. BID
    • Type: plist string
    • Failsafe: Empty (Not installed)
    • Description: Specifies the value of NVRAM variable 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:HW_BID.
  2. ROM
    • Type: plist data, 6 bytes
    • Failsafe: Empty (Not installed)
    • Description: Specifies the values of NVRAM variables 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:HW_ROM and 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:ROM.
  3. MLB
    • Type: plist string
    • Failsafe: Empty (Not installed)
    • Description: Specifies the values of NVRAM variables 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:HW_MLB and 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:MLB.
  4. FirmwareFeatures
    • Type: plist data, 8 bytes
    • Failsafe: Empty (Not installed)

    • Description: This variable comes in pair with FirmwareFeaturesMask. Specifies the values of NVRAM variables:

    • 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:FirmwareFeatures
    • 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:ExtendedFirmwareFeatures
  5. FirmwareFeaturesMask
    • Type: plist data, 8 bytes
    • Failsafe: Empty (Not installed)

    • Description: This variable comes in pair with FirmwareFeatures. Specifies the values of NVRAM variables:

    • 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:FirmwareFeaturesMask
    • 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:ExtendedFirmwareFeaturesMask
  6. SystemSerialNumber
    • Type: plist string
    • Failsafe: Empty (Not installed)
    • Description: Specifies the values of NVRAM variables 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:HW_SSN and 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:SSN.
  7. SystemUUID
    • Type: plist string
    • Failsafe: Empty (Not installed)
    • Description: Specifies the value of NVRAM variable 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:system-id for boot services only. The value found on Macs is equal to SMBIOS SystemUUID.