Re: Basic concepts and proper useage of UEFI
- Date: Sat, 04 May 2019 18:07:48 +0000
- From: Steve McIntyre <steve@xxxxxxxxxx>
- Subject: Re: Basic concepts and proper useage of UEFI
>This post was prompted by recent discussion of problems/cautions
>concerning UEFI. All my machines boot in Legacy BIOS mode and I have
>minimal background in UEFI.
>A preliminary web search yielded:
>I have not yet read these in detail. Is there other introductory
>material that would be recommended.
I've alwo written a lot about UEFI in relation to Debian in the wiki:
>Also, in https://lists.debian.org/debian-user/2019/05/msg00107.html , it
>was suggested that a separate thread be begun on the question of
> "Whether or not you can update/install UEFI if you are not booted
> into UEFI."
The normal way to use a system with UEFI firmware involves
using/updating boot variables via UEFI Runtime Services. You can only
set those variables up when your system is already running in UEFI
Steve McIntyre, Cambridge, UK. steve@xxxxxxxxxx
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