Hi,

I got this when upgrading from bookworm to trixie:

Selecting previously unselected package ganeti-3.1.
Preparing to unpack .../05-ganeti-3.1_3.1.0~rc2-2_all.deb ...
dpkg-divert: error: 'diversion of /usr/share/ganeti/2.16/ganeti/utils/version.py to /usr/share/ganeti/2.16/ganeti/utils/version.py.orig by ganeti-3.1' clashes with 'diversion of /usr
/share/ganeti/2.16/ganeti/utils/version.py to /usr/share/ganeti/2.16/ganeti/utils/version.py.orig by ganeti-3.0'
dpkg: error processing archive /tmp/apt-dpkg-install-rexH95/05-ganeti-3.1_3.1.0~rc2-2_all.deb (--unpack):
 new ganeti-3.1 package pre-installation script subprocess returned error exit status 2

Control: tags -1 + confirmed
  mmdebstrap --include=ganeti-3.0 --chrooted-customize-hook=' sed -e s/bookworm/trixie/ -i /etc/apt/sources.list && apt update && apt dist-upgrade -y && apt install -y ganeti-3.1' bookworm /dev/null

...
Installing:
  ganeti-3.1

Summary:
  Upgrading: 0, Installing: 1, Removing: 0, Not Upgrading: 0
  Download size: 866 kB
  Space needed: 4694 kB / 4516 MB available

Get:1 http://deb.debian.org/debian trixie/main arm64 ganeti-3.1 all 3.1.0~rc2-2 [866 kB]
Fetched 866 kB in 1s (1343 kB/s)
Selecting previously unselected package ganeti-3.1.
(Reading database ... 15543 files and directories currently installed.)
Preparing to unpack .../ganeti-3.1_3.1.0~rc2-2_all.deb ...
dpkg-divert: error: 'diversion of /usr/share/ganeti/2.16/ganeti/utils/version.py to /usr/share/ganeti/2.16/ganeti/utils/version.py.orig by ganeti-3.1' clashes with 'diversion of /usr/share/ganeti/2.16/ganeti/utils/version.py to /usr/share/ganeti/2.16/ganeti/utils/version.py.orig by ganeti-3.0'
dpkg: error processing archive /var/cache/apt/archives/ganeti-3.1_3.1.0~rc2-2_all.deb (--unpack):
 new ganeti-3.1 package pre-installation script subprocess returned error exit status 2
Errors were encountered while processing:
 /var/cache/apt/archives/ganeti-3.1_3.1.0~rc2-2_all.deb

We believe that the bug you reported is fixed in the latest version of
ganeti, 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 1108944@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Apollon Oikonomopoulos <apoikos@debian.org> (supplier of updated ganeti 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: Sun, 13 Jul 2025 18:16:51 +0200
Source: ganeti
Architecture: source
Version: 3.1.0~rc2-3
Distribution: unstable
Urgency: medium
Maintainer: Debian Ganeti Team <ganeti@packages.debian.org>
Changed-By: Apollon Oikonomopoulos <apoikos@debian.org>
Closes: 1108944
Changes:
 ganeti (3.1.0~rc2-3) unstable; urgency=medium
 .
   * Stop diverting 2.16/version.py; fixes upgrades from 3.0 (Closes: #1108944)
Checksums-Sha1:
 5a7d3b0dc2fd1ebe82b91e43962ed871042dee21 3346 ganeti_3.1.0~rc2-3.dsc
 aad3097d70e3a63b83c27fea80102d51b006d6ea 47304 ganeti_3.1.0~rc2-3.debian.tar.xz
 84614201a2103964673539f6e5c0bccd9e7855f8 18155 ganeti_3.1.0~rc2-3_amd64.buildinfo
Checksums-Sha256:
 1d888b92a79ecff9317b911ab842c8cd4e585b5b0b378fc5e7481addee65b4a4 3346 ganeti_3.1.0~rc2-3.dsc
 3bc887f59d5d3b98b7b0fde424d8bcbe893c5fe16c0e8664a219af2bccae5f47 47304 ganeti_3.1.0~rc2-3.debian.tar.xz
 fc217bc1054717b6f8e48b4bf0ed4cea50a6113583a0e7330a3513753d7b49d8 18155 ganeti_3.1.0~rc2-3_amd64.buildinfo
Files:
 c69c9502d932216ac1c611d622293839 3346 admin optional ganeti_3.1.0~rc2-3.dsc
 5ea540119619f2b268c45f06cdd7ecb0 47304 admin optional ganeti_3.1.0~rc2-3.debian.tar.xz
 596fef40d7cc3b6166a0fa489949b61c 18155 admin optional ganeti_3.1.0~rc2-3_amd64.buildinfo
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