Bug#1051271: GRUB2 2.12~rc1-7 prevent machine to boot

[Julian Andres Klode]

Control: tag -1 unreproducible

On Tue, Sep 05, 2023 at 04:19:01PM +0200, Miguel A. Vallejo wrote:
> Package: grub2
> Version: 2.12~rc1-7
> Severity: critical
> 
> This morning I noticed an apt upgrade in Debian unstable/Sid upgraded
> grub-common, grub2-common, grub-efi-amd64 and grub-efi-amd64-bin. The
> upgrade went normally and no errors were shown. Then I turned the
> computer off and after a few hours I tried to turn it on, but it
> didn't boot, it tried to boot but finally showed the bios screen.

You are going to have to provide a lot more details than this,
because it works in qemu, on the XPS13 I have for testing, and
it's been in Ubuntu devel for over a month now with no such issues.

- What hardware are you running this on?

- It seems you have not updated grub-efi-amd64-signed, is that installed?

- Is grub even loaded, what happens if you press Shift very quickly all
  the time during boot?

- If grub is loaded, drop to console (c) and set debug=all, then normal
  and try to boot the entry again.

- If grub is not loaded, set mokutil --set-verbosity true before trying
  to boot and record a video of your device screen.

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