package libsane1 1.0.27-1~experimental2ubuntu2.1 failed to install/upgrade: trying to overwrite shared '/lib/udev/hwdb.d/20-sane.hwdb', which is different from other instances of package libsane1:i386

[Kanhu Majhi]

***********
to get a workaround, try:

sudo apt-get -o Dpkg::Options::="--force-overwrite" install --reinstall libsane1:i386 (or your real package name)

***************

An error occured
error:broken count>0

ProblemType: Package
DistroRelease: Ubuntu 17.10
Package: libsane1 1.0.27-1~experimental2ubuntu2.1
ProcVersionSignature: Ubuntu 4.13.0-19.22-generic 4.13.13
Uname: Linux 4.13.0-19-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.7-0ubuntu3.6
Architecture: amd64
Date: Mon Dec 18 01:06:19 2017
DuplicateSignature:
 package:libsane1:1.0.27-1~experimental2ubuntu2.1
 Unpacking libsane1:i386 (1.0.27-1~experimental2ubuntu2.1) ...
 dpkg: error processing archive /tmp/apt-dpkg-install-baiIM1/11-libsane1_1.0.27-1~experimental2ubuntu2.1_i386.deb (--unpack):
  trying to overwrite shared '/lib/udev/hwdb.d/20-sane.hwdb', which is different from other instances of package libsane1:i386
ErrorMessage: trying to overwrite shared '/lib/udev/hwdb.d/20-sane.hwdb', which is different from other instances of package libsane1:i386
InstallationDate: Installed on 2017-12-16 (1 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
Python3Details: /usr/bin/python3.6, Python 3.6.3, python3-minimal, 3.6.3-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.14, python-minimal, 2.7.14-2ubuntu1
RelatedPackageVersions:
 dpkg 1.18.24ubuntu1
 apt 1.5.1
SourcePackage: sane-backends
Title: package libsane1 1.0.27-1~experimental2ubuntu2.1 failed to install/upgrade: trying to overwrite shared '/lib/udev/hwdb.d/20-sane.hwdb', which is different from other instances of package libsane1:i386
UpgradeStatus: No upgrade log present (probably fresh install)

[Seth Arnold (seth-arnold)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Seth Arnold (seth-arnold)]

If you're going to install both the amd64 and i386 versions of a package, you have to make sure both are the same version. I'll leave this bug open for the time being incase there's something that sane-backends is doing to encourage making this mistake.

Thanks

[Jean-Baptiste Lallement (jibel)]

The versions for both arch is the same

root@ubuntu:~# apt install libsane1:i386
Lecture des listes de paquets... Fait
Construction de l'arbre des dépendances
Lecture des informations d'état... Fait
Paquets suggérés :
  hplip:i386
Les NOUVEAUX paquets suivants seront installés :
  libsane1:i386
0 mis à jour, 1 nouvellement installés, 0 à enlever et 0 non mis à jour.
Il est nécessaire de prendre 0 o/2 181 ko dans les archives.
Après cette opération, 10,8 Mo d'espace disque supplémentaires seront utilisés.
(Lecture de la base de données... 128472 fichiers et répertoires déjà installés.)
Préparation du dépaquetage de .../libsane1_1.0.27-1~experimental3ubuntu1_i386.deb ...
Dépaquetage de libsane1:i386 (1.0.27-1~experimental3ubuntu1) ...
dpkg: erreur de traitement de l'archive /var/cache/apt/archives/libsane1_1.0.27-1~experimental3ubuntu1_i386.deb (--unpack) :
 tentative de remplacement de « /lib/udev/hwdb.d/20-sane.hwdb », qui est différent d'autres instances du paquet libsane1:i386
dpkg-deb: erreur: coller subprocess was killed by signal (Relais brisé (pipe))
Des erreurs ont été rencontrées pendant l'exécution :
 /var/cache/apt/archives/libsane1_1.0.27-1~experimental3ubuntu1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

root@ubuntu:~# apt policy libsane1:amd64 libsane1:i386
libsane1:
  Installé : 1.0.27-1~experimental3ubuntu1
  Candidat : 1.0.27-1~experimental3ubuntu1
 Table de version :
 *** 1.0.27-1~experimental3ubuntu1 500
        500 http://fr.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status
libsane1:i386:
  Installé : (aucun)
  Candidat : 1.0.27-1~experimental3ubuntu1
 Table de version :
     1.0.27-1~experimental3ubuntu1 500
        500 http://fr.archive.ubuntu.com/ubuntu bionic/main i386 Packages

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[dino99 (9d9)]

@Adam

thanks for the bionic fix; Please backport it to other releases too: see lp:1725928 for example

[Adam Conrad (adconrad)]

sane-backends (1.0.27-1~experimental3ubuntu2) bionic; urgency=medium

  * debian/rules: Drop timestamps from conflicting multiarch:same files
    hwdb.d/20-sane.hwdb and rules.d/60-libsane1.rules (closes: #880391)

 -- Adam Conrad <email address hidden> Sat, 03 Feb 2018 14:26:39 -0700