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Groups > comp.os.linux.misc > #16973

Re: EUFI and LIVE CD/USB issues

From Arkadiusz Drabczyk <arkadiusz@drabczyk.org>
Newsgroups comp.os.linux.misc
Subject Re: EUFI and LIVE CD/USB issues
Date 2016-03-13 19:37 +0000
Organization Daddy, why doesn't this magnet pick up this floppy disk?
Message-ID <nc4fho$fgg$1@dont-email.me> (permalink)
References <nc2s3k$oe1$1@dont-email.me>

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On 2016-03-13, T <T@invalid.invalid> wrote:
> Hi All,
>
> I can not get my live USB, or CD's for that matter, to boot
> with stinkin' EUFI bioses.
>
> Typically, I can go into bios and set it to boot "legacy", but not
> on some computers. Some computer so restrict the heck out of what
> you can configure that you can not turn on legacy mode.

What's worse is some machines work differently.  When I was installing
Slackware on EFI machine for the first time I needed to disable legacy
BIOS first (I asked o question on LQ about this:
https://www.linuxquestions.org/questions/slackware-installation-40/setup-eliloconfig-fails-because-of-missing-sys-firmware-efi-4175547821/)

> How do you guys handle the issue?

Last month I successfully installed Slackware on HP-something machine
at work.  I created a customized ISO image with my own configs and
packages with `isohybrid -u'.  It worked well, included ISOLINUX was
able to start Slackware from USB.  Inside installer I make some GPT
partitions and a separate EFI partition. To my surprise I wasn't able
to load Slackware with elilo after installation finished.  I got
"Non-system disk or disk error".  I enabled Legacy BIOS, installed
regular lilo and all worked well.  I don't know why elilo didn't work,
whether it was broken or a particular implementation of EFI on the
machine was buggy.  Secure Boot was of course disabled.

I don't know what would I do if I wasn't able to switch to legacy
mode.

The whole EFI thing is a mess. The only point of it is to prevent
people from installing non-Window OSes.  I even heard that EFI specs
do not explicitly require for user to be able to disable Secure Boot.

-- 
Arkadiusz Drabczyk

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Thread

EUFI and LIVE CD/USB issues T <T@invalid.invalid> - 2016-03-12 21:02 -0800
  Re: UEFI and LIVE CD/USB issues Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2016-03-13 11:28 +0100
  Re: EUFI and LIVE CD/USB issues Arkadiusz Drabczyk <arkadiusz@drabczyk.org> - 2016-03-13 19:37 +0000
    Re: EUFI and LIVE CD/USB issues T <T@invalid.invalid> - 2016-03-13 18:37 -0700
      Re: EUFI and LIVE CD/USB issues Roger Blake <rogblake@iname.invalid> - 2016-03-14 02:51 +0000
        Re: EUFI and LIVE CD/USB issues Arkadiusz Drabczyk <arkadiusz@drabczyk.org> - 2016-03-14 08:09 +0000
          Re: EUFI and LIVE CD/USB issues "Carlos E.R." <robin_listas@invalid.es> - 2016-03-14 10:29 +0100
          Re: EUFI and LIVE CD/USB issues Richard Kettlewell <rjk@greenend.org.uk> - 2016-03-14 10:41 +0000
      Re: EUFI and LIVE CD/USB issues The Natural Philosopher <tnp@invalid.invalid> - 2016-03-14 10:01 +0000
        Re: EUFI and LIVE CD/USB issues dlbendigo  <laidlaws@hotkey.net.au> - 2016-03-15 08:42 +1100

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