Hi,

libvpd-2.2-3 contains a udev .rules file and installs it using
debhelper. In the bookworm build (+b1), it was installed to
/lib/udev/rules.d whereas in a later rebuild for trixie (+b2) it was
installed to /usr/lib/udev/rules.d due to the /usr-move (DEP17). As it
also is marked M-A:same, this file may be lost in upgrade scenarios from
bookworm (+b1) to trixie (+b2). For more information refer to
https://subdivi.de/~helmut/dep17.html sections P7 and M10 in particular.
I propose mitigating this problem by adding protective diversions for
the duration of the upgrade. Those diversions are no longer present once
the upgrade is completed. As a result, the changes can be fully reverted
once trixie is released. I am attaching a patch for your convenience. It
has marked all removable sections in such a way that the Debian janitor
(operated by Jelmer) can automatically file a merge request to perform
this deletion. I tested this patch by performing a cross build for
ppc64el and upgraded the package in a qemu-user environment. I
appreciate if you could do more testing on real hardware ahead of
upload. Let me know if you have any questions.

Helmut

Hi Adrian,

it appears that Frédéric Bonnard is not really active anymore.
I've CCed you as PPC porter. Maybe you can have a look at this bug
report and do an NMU / take over the package.

Regards,
Michael

Hi Michael,

Yes, I'm going to have a look at it over the weekend.

Thanks,
Adrian

Hi Adrian

Am 21.02.25 um 14:38 schrieb John Paul Adrian Glaubitz:

I assume this fell through the cracks?

Hi,

It didn't. There were just a few other things that kept me busy last
week, including a smartphone that nearly got lost when I sent it to
repair.

I'll look at it either today or tomorrow.

Thanks,
Adrian

Hi,

Apologies, I have to move that to the weekend.

Adrian

Hi Adrian!


On Fri, 04 Apr 2025 10:44:41 +0200 John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> wrote:
With the freeze in effect, it has probably become a bit harder to get
ppc64-diag and libvpd back into trixie.

https://tracker.debian.org/pkg/ppc64-diag
https://tracker.debian.org/pkg/libvpd


That said, I have no idea how important those packages are for ppc(64)
or not (and if removal of those packages is a valid option as well).

As it stands today, those packages will not be part of trixie.
I've added debian-powerpc to CC to gather further feedback


Regards,
Michael

Hi Michael, Adrian, and all,

Thank you for the context on this bug. I wanted to share why this
package
matters for power architectures and what I have done.

Importance for PowerPC:
   libvpd is a direct dependency of ppc64-diag, which is the core
   hardware diagnostic tool for IBM Power platforms. It provides:
     - RTAS platform error log analysis
     - Hardware fault indicator management
     - The rtas_errd daemon for automated hardware event responses
     - Vital Product Data (VPD) collection via lsvpd

   Due to this libvpd bug, ppc64-diag has been absent from testing
   and trixie. This means IBM Power users on trixie have no access
   to these essential hardware diagnostic tools.

What I have done:
   I have applied Helmut's patch from msg #5 and tested it on real
   ppc64el hardware (IBM Power10 ).

   Test results (upgrading libvpd 2.2.9-1+b2 -> 2.2.9-1.1):
     - preinst: diversion added correctly
     - postinst: diversion removed cleanly
     - /usr/lib/udev/rules.d/60-libvpd-2.2-3.rules survives upgrade
     - dpkg-divert --list: no stray diversion after upgrade
     - dpkg -l: ii 2.2.9-1.1 fully configured


   Salsa MR: https://salsa.debian.org/debian/libvpd/-/merge_requests/1

   I am currently preparing the NMU upload. I will be filing an RFS
   shortly once the package is uploaded to mentors.debian.net.

   Please review the Salsa MR and let me know if you have any
   suggestions or corrections before I proceed with the upload.

Thank you for your patience with this bug. The patch works correctly
and the fix is ready.


Thanks,
Trupti

Hi Trupti,

thanks for your follow-up.
I'll leave it up to the powerpc porters to sponsor this upload.

Regards,
Michael

Am 22.09.2026 um 16:00 schrieb Trupti:

We believe that the bug you reported is fixed in the latest version of
libvpd, 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 1091747@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Trupti Shirsat <trupti@linux.ibm.com> (supplier of updated libvpd 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: Tue, 22 Sep 2026 10:46:58 -0500
Source: libvpd
Architecture: source
Version: 2.2.9-1.1
Distribution: unstable
Urgency: medium
Maintainer: Frédéric Bonnard <frediz@debian.org>
Changed-By: Trupti Shirsat <trupti@linux.ibm.com>
Closes: 1091747
Changes:
 libvpd (2.2.9-1.1) unstable; urgency=medium
 .
   * Non-maintainer upload.
   * Fix file loss during bookworm to trixie upgrade (DEP17 /usr-move).
     Add dpkg-divert protective diversions for udev rules file.
     Thanks to Helmut Grohne for the patch. (Closes: #1091747)
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 d505b17967df8dc0437172616149c582d56ee470 4960 libvpd_2.2.9-1.1.debian.tar.xz
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