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boot_mode¶(string) --
The boot mode that was specified by the AMI. If the value is uefi-preferred , the AMI supports both UEFI and Legacy BIOS. The currentInstanceBootMode parameter is the boot mode that is used to boot the instance at launch or start.
Note
The operating system contained in the AMI must be configured to support the specified boot mode.
For more information, see Boot modes in the Amazon EC2 User Guide .