[CentOS] Boot failed on latest CentOS 7 update

John Pierce
2020-08-03T02:56:55Z

On Sun, Aug 2, 2020 at 7:14 PM Chris Adams <linux at cmadams.net> wrote:

> Once upon a time, Jonathan Billings <billings at negate.org> said:
> > On Aug 2, 2020, at 14:43, Pete Biggs <pete at biggs.org.uk>
wrote:
> > > You don't have to use UEFI secure booting - most machines can
fall back
> > > to legacy booting using BIOS settings. If you do that, you
won't use
> > > any Microsoft signed code.
> >
> > Back in 2017, Intel said that it was going to deprecate the ?Legacy?
CSM
> by 2020. They might have changed their schedule but I suspect we?ll start
> seeing hardware without anything but UEFI.
>
> I believe that is still Intel's plan.
>
> However, as happens often, people are confusing UEFI and Secure Boot.
> UEFI is a replacement for the ages-old BIOS - Secure Boot is an
> extension to UEFI to create a "trusted" (for whatever that may
mean)
> boot chain to get to the OS.  You can have UEFI without having Secure
> Boot enabled (that's what I do on my systems).
>

Legacy BIOS has its own set of issues, like no GPT support, MBR disks are
max 2TB.



--
-john r pierce
  recycling used bits in santa cruz