LWN.net Logo

But live media won't be affected, right?

But live media won't be affected, right?

Posted Jan 24, 2012 11:21 UTC (Tue) by salimma (subscriber, #34460)
In reply to: But live media won't be affected, right? by blackbelt_jones
Parent article: Garrett: Why UEFI secure boot is difficult for Linux

At first glance, my reaction was "surely it should not matter if you're booting from a hard disk or from a removable USB medium; the same bootloader signature check should still be performed".

But then -- UEFI boots from a GPT-partitioned medium; USB thumb drives are typically using the older partition table format. I've not found a reference for it yet, but perhaps in Standard Mode, one can only boot from GPT media (and thus legacy live USB sticks can only be booted in Custom Mode)?


(Log in to post comments)

Copyright © 2013, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds