EC2 > Enums > BootModeValues BootModeValues¶ Enum Class¶ BootModeValues ¶ Bases: UnknownEnumMixin, StrEnum Attributes¶ LEGACY_BIOS class-attribute instance-attribute ¶ LEGACY_BIOS = 'legacy-bios' UEFI class-attribute instance-attribute ¶ UEFI = 'uefi' UEFI_PREFERRED class-attribute instance-attribute ¶ UEFI_PREFERRED = 'uefi-preferred'