Hi,

starting with version 2.14-1, grub2 fails to build from source on powerpc [1]:

/usr/bin/powerpc-linux-gnu-ld.bfd: appendedsig.module: in function `grub_mod_init':
/build/reproducible-path/grub2-2.14/obj/grub-emu/grub-core/../../../grub-core/commands/appendedsig/appendedsig.c:1615:(.text+0x2adc): undefined reference to `grub_pks_get_keystore'
/usr/bin/powerpc-linux-gnu-ld.bfd: appendedsig.module: in function `create_dbs_from_pks':
/build/reproducible-path/grub2-2.14/obj/grub-emu/grub-core/../../../grub-core/commands/appendedsig/appendedsig.c:1400:(.text+0x2c64): undefined reference to `grub_pks_free_data'
collect2: error: ld returned 1 exit status

Since I initially suspected an upstream problem, I tried building grub2 from
git which surprisingly worked fine [2]. Thus, the problem must be with the Debian
package itself, either one of the patches or how the package is configured in
debian/rules.

Adrian

Hi,

It's actually an upstream bug and can be reproduced when building grub-emu instead
of grub-ieee1275 with "--with-platform=emu". I have already reported the issue to
the corresponding upstream author [1].

Adrian

Hi,

the attached patch fixes the problem.

Thanks,
Adrian

Hi,

any chance the patch from [1] could be added to the Debian package?

Thanks,
Adrian

Hi Adrian,

I have submitted a merge request to the Debian grub-team repository
adding the upstream fix:

https://salsa.debian.org/TruptiShirsat/grub/-/merge_requests/1

The patch has been tested by building grub2 2.14-3.1 for powerpc
using sbuild and the build succeeded.

Thanks,
Trupti

Hi Trupti,

Great, thanks a lot!

Adrian

Hello,

Bug #1127348 in grub2 reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/grub-team/grub/-/commit/969992b177c7fab8730fb738c48af53836a77d2a
------------------------------------------------------------------------
Merge branch 'fix/powerpc-grub-emu-pks-ftbfs' into 'master'

Fix grub-emu FTBFS on 32-bit powerpc due to PKS support (Closes: #1127348)

See merge request grub-team/grub!93
------------------------------------------------------------------------

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1127348

Hello,

Bug #1127348 in grub2 reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/grub-team/grub/-/commit/189fbc7da34f185db7fba1475fcd3ce2cb245f96
------------------------------------------------------------------------
debian/patches: Fix grub-emu FTBFS on 32-bit powerpc due to PKS support (Closes: #1127348)
------------------------------------------------------------------------

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1127348

We believe that the bug you reported is fixed in the latest version of
grub2, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1127348@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Steve McIntyre <93sam@debian.org> (supplier of updated grub2 package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Wed, 23 Sep 2026 21:39:45 +0100
Source: grub2
Architecture: source
Version: 2.14-4
Distribution: unstable
Urgency: medium
Maintainer: GRUB Maintainers <pkg-grub-devel@alioth-lists.debian.net>
Changed-By: Steve McIntyre <93sam@debian.org>
Closes: 1127348 1128574 1148719 1148741
Changes:
 grub2 (2.14-4) unstable; urgency=medium
 .
   [ Trupti Shirsat ]
   * debian/patches: Fix grub-emu FTBFS on 32-bit powerpc due to PKS
     support (Closes: #1127348)
 .
   [ youwan Wang ]
   * debian/rules: serialize package build targets
 .
   [ Steve McIntyre ]
   * Backport fix for serial-MMIO secure boot bypass (Closes: #1148741)
   * Backport fixes for compilation with gcc-16 (Closes: #1128574)
   * Backport fix for boot failure when shim validation is disabled
     under secure boot (Closes: #1148719)
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 90ab4a47debd62b1b5c1f2c3aeb23021a30b8d98 1099216 grub2_2.14-4.debian.tar.xz
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Checksums-Sha256:
 6963e89ff2aaf7c38f386f62e664bf56af70a66a7977e86925602d47cf15d14b 7208 grub2_2.14-4.dsc
 290779e500e4de6e68f45d89853cde3a7873a42d037b5980376bb85b1b42137d 1099216 grub2_2.14-4.debian.tar.xz
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Files:
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