Re: Fedora 32/33 livedisks do not boot on M$ system(s)

[Erich Eickmeyer]

On 9/30/2020 8:17 AM, Chris Murphy wrote:
>  On Wed, Sep 30, 2020 at 2:05 AM Marius Schwarz
> <fedoradev(a)cloud-foo.de&gt; wrote:
> > Hi,
> >
> > the livecds from F32 and F33 are suffering from a problem not booting on
> > Microsoft device(s)
> >
> > https://bugzilla.redhat.com/show_bug.cgi?id=1879921
> > https://bugzilla.redhat.com/show_bug.cgi?id=1883593
> >
> > F31 is booting fine, the newer ones not. Looks like a GrubBootloader
> > issue to me, as not even grub comes up.
>  That suggests the scary region of firmware, hybrid ISO, shim, and boot loader.
>
>  The bug reports have the wrong component set on them, and aren't
>  discrete actionable bug reports. It's just saying "this doesn't work"
>  but the people most likely to figure out what *is* happening are those
>  with this specific hardware.
>
> > An instant reset back into the bios happens if a usb boot is tried.
>  Sounds like both a regression and a firmware bug. Maybe we'll be lucky
>  and someone on the list has an idea already. But if not, someone with
>  the hardware will have to do the tedious work of figuring out exactly
>  where it's getting tripped up.
>
>
> > Unfortunatly the assignee is not reacting and i would really miss my
> > linux surface after upgrading to F32 :D
>  I have no idea what the LiveCD component is, but the bug report
>  contains so little information I also don't know what I'd reassign it
>  to. Asking about it on devel is probably the right thing to do for
>  now. 
I can confirm this bug does exist. Attempting to boot on my Surface Pro
4 requires secure boot to be momentarily shut-off. SB actually is
reporting a secure boot violation for whatever reason. I have reason to
believe that the UEFI files are missing correct signing, or that signing
needs to be updated.

I have also seen SB failures with my Dell laptop with SB enabled, but
those are easier to work around than going nuclear on a Surface Pro and
shutting-off secure boot.

F31 and F32 are unaffected, this appears to have started with F33.

-- 
Erich Eickmeyer
Project Leader         Ubuntu Studio
Maintainer             Fedora Jam