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Re: fbx64.efi hangs after Debian 10.10 shim update



Hi Pascal,

On Sun, Jun 20, 2021 at 07:44:58PM +0200, Pascal Hambourg wrote:
>
>I have Debian 10 amd64 installed on an old HP EliteBook 2570p. The UEFI
>firmware seems to ignore the EFI boot entries and only be able to boot from
>the removable device path EFI\BOOT\BOOTX64.EFI by default. After each boot a
>new "debian" EFI boot entry was added, so I removed
>/boot/efi/EFI/BOOT/fbx64.efi to avoid this. So far so good.

OK.

>After the latest shim update which ran grub-install and installed the new
>/boot/efi/EFI/BOOT/fbx64.efi, UEFI boot hangs with no error message, only the
>HP logo, and GRUB does not show up.
>
>Using "Boot from EFI file" in the firmware boot menu, it appears that :
>- grubx64.efi (from either EFI\debian or EFI\BOOT) works
>- shimx64.efi (from EFI\debian) works
>- BOOTX64.efi (from EFI\BOOT) hangs
>- fbx64.efi (from either EFI\debian or EFI\BOOT) hangs
>
>So as a workaround, I removed /boot/efi/EFI/BOOT/fbx64.efi again.

OK. That's surprising, any I imagine annoying for you. :-/

If you're prepared to help with testing the problem here (please!),
could you please: 

1. run "mokutil --set-verbosity true" from the Linux command line (as
   root)
2. put the fbx64.efi file in place again (grub-install should do that)
3. reboot and try to capture any output

As you've already seen, the firmware on your machine seems buggy and
it looks like we might have found more edges in the new version of
shim. :-/

-- 
Steve McIntyre, Cambridge, UK.                                steve@einval.com
You raise the blade, you make the change... You re-arrange me 'til I'm sane...


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