EFISTUB using UEFI directly with efibootmgr

EFISTUB using UEFI directly with efibootmgr

[Yuu Yin]

Hello,

Is it possible to set EFISTUB using UEFI directly with efibootmgr[1]? What to set for `--loader` (the vmlinux/vmlinuz)? and `initrd=`?

```sh
efibootmgr --help | grep loader
-l | --loader name     (defaults to "\EFI\gnu\grub.efi")
```

But I do not want to interop GRUB with efibootmgr.

- [1] https://wiki.archlinux.org/title/EFISTUB#efibootmgr

Yuu Yin

Re: EFISTUB using UEFI directly with efibootmgr

[yuu]

On Fri, Jul 29 2022 at 09:01:51 +00:00:00, Yuu Yin <yuuyin@proton.me> 
wrote:
> Is it possible to set EFISTUB using UEFI directly with efibootmgr[1]? 
> What to set for `--loader` (the vmlinux/vmlinuz)? and `initrd=`?
> 
> ```sh
> efibootmgr --help | grep loader
> -l | --loader name     (defaults to "\EFI\gnu\grub.efi")
> ```

Ansers I got from #guix:libera.chat:
 > <unmatched-paren>it's probably required, since guix remakes the 
grub.cfg every reconfigure
 > <unmatched-paren>to add a menu entry to rollback to the previous 
generation
 > <nckx>It's also 'cross-platform', and doesn't require copying the 
kernel.
 > <unmatched-paren>and guix reinstalls grub on every reconfigure
 > <nckx>(By default.)
 > <unmatched-paren>Oh, yeah, I forgot it was possible to switch the 
bootloader in the operating-system.
 > <unmatched-paren>Okay, then, I suppose it might be possible to add 
support for efibootmgr?
 > <unmatched-paren>sorry, efistub
 > <nckx>If somebody contributes patches for UEFI rootki^Wboot support, 
sure, but it's hardly a killer feature otherwise.
 > <nckx>Don't forget to add EFI_STUB to our kernels if so.
 > ---https://logs.guix.gnu.org/guix/2022-07-29.log#103257

✨✨✨✨
Yuu Yin
yλ