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

[Jeremy Davis]

Hi Nicholas,

On 26/1/24 11:40, Nicolas Haller wrote:
> Thanks for the suggestions.
> I was able to update my BIOS/UEFI but it didn't solve the issue 
> unfortunately.

:(

If you haven't already, it may be worth reporting upstream (i.e. to grub 
devs) - they might have more ideas on troubleshooting, etc?

> 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.

Yay!

> 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. :-)

AFAIK, it just means that you aren't using secureboot/UEFI so the risk 
of rootkits is potentially higher. TBH, I'm not sure how much risk there 
really is in practice though?

FWIW, my laptop (a couple of years older than yours AFAIT) first had 
Debian 6/Squeeze installed - about ~11-12 years ago & upgraded since - 
has always been like that. IIRC I had to, to install Debian back then?

It's always been rock solid reliable and I've never had any issues 
(beyond the odd Debian bug - at least to the best of my knowledge). I'm 
always a bit paranoid though, so super careful - daily automated aide 
scans, thunderbird with html disabled for email and firefox locked down 
for web browsing - always careful with what links I click, etc. So YMMV!?

> 
> Thanks again for your help.
> 

You're most welcome. Have an awesome day! :)

Cheers,
Jeremy
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