linux-kernel - Re: Can't boot kernel 6.17.4+ via rEFInd

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Message-ID: <CAB95QARtzDWensRzui3d-7+jhymcFBOBi78ev9LMy=ZFJMDCTA@mail.gmail.com>
Date: Wed, 29 Oct 2025 21:07:20 +0100
From: Eugene Shalygin <eugene.shalygin@...il.com>
To: Nathan Chancellor <nathan@...nel.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Masahiro Yamada <masahiroy@...nel.org>, 
	linux-kbuild@...r.kernel.org
Subject: Re: Can't boot kernel 6.17.4+ via rEFInd

Hi Nathan,

On Tue, 28 Oct 2025 at 18:45, Nathan Chancellor <nathan@...nel.org> wrote:
> > Replacing CONFIG_KERNEL_ZSTD with  CONFIG_KERNEL_GZIP made the kernel
> > bootable. What does that mean?
>
> Hmmmm, I am not sure... That seems rather odd within the context of the
> flagged change.

Huh! The fourth of my machines with the similar config (also fully
updated ~amd64 Gentoo) with rEFind boots kernel 6.17.5 with
CONFIG_KERNEL_ZSTD enabled.

> Could you post the output of 'readelf -S vmlinux vmlinux.unstripped'
> from the broken and good builds?

Attached.

> Does rEFInd have any sort of additional
> debugging to see why/what it is complaining about not being able to
> find?

No, unfortunately. However, I was unable to find the first part of the
error message ("Not Found") in the rEFInd sources.

Cheers,
Eugene

Download attachment "readelf-vmlinux.tar.zst" of type "application/zstd" (1911 bytes)