Bug#1056764: grub-efi-amd64: can't boot with GRUB 2.12~rc1-12

[Nicolas Haller]

Hi Jeremy,

Thanks for the suggestions.
I was able to update my BIOS/UEFI but it didn't solve the issue 
unfortunately.

So I change the type of my UEFI partition to BIOS boot partition, 
install grub-pc 2.12-1, run a grub-install and change the BIOS setting 
to "legacy BIOS only" as you mentioned and I'm able to boot now.

I'm not sure of the consequences of switching from UEFI to BIOS, but at 
least, I have a GRUB I don't need to pin to 2.06. :-)

Thanks again for your help.

-- 
Nicolas Haller

On 2024-01-24 00:49, Jeremy Davis wrote:
> Hi Nicolas,
> 
> It might be worth double checking you have the latest BIOS/UEFI? If it's 
> not the latest, then updating is worth a try IMO.
> 
> FWIW I recently updated mine to resolve some (completely unrelated) 
> issues on my Lenovo Gen 1 X1 Carbon on Bookworm. With no optical drive 
> and no Windows, it initially seemed like a PITA, but ended up pretty easy.
> 
> Process went something like this:
> 
> - download relevant BIOS/UEFI update ISO specific to your model from
>    Lenovo
> - extract IMG from ISO (using 'geteltorito' tool in 'genisoimage' pkg)
> - write IMG to USB (e.g. using 'dd')
> - boot from USB
> - update...! :)
> 
> If you are already running latest, updating doesn't help, or you want to 
> try a workaround, perhaps try disabling UEFI (i.e. disable secure boot 
> and enable "legacy BIOS only" mode) and install the non-uefi grub (i.e. 
> 'grub-pc')?
> 
> Good luck.
> 
> Cheers,
> Jeremy