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On a PC that uses a standard legacy BIOS does there exist any software (a special bootloader) that will perform signature checks on the kernel (Windows or Linux)?

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How useful is this? Someone could just replace the bootloader. – grawity May 29 '12 at 21:55
    
It is an interesting question from a technical standpoint. – Moab May 30 '12 at 17:15

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