apparmor 4.0.0~alpha2-0ubuntu3 ships same file as liblxc-common

[Heinrich Schuchardt]

When running apt-get distupgrade I saw this message:

Preparing to unpack .../apparmor_4.0.0~alpha2-0ubuntu3_amd64.deb ...
Unpacking apparmor (4.0.0~alpha2-0ubuntu3) over (4.0.0~alpha2-0ubuntu2) ...
dpkg: error processing archive /var/cache/apt/archives/apparmor_4.0.0~alpha2-0ubuntu3_amd64.deb (--unpack):
 trying to overwrite '/etc/apparmor.d/usr.bin.lxc-start', which is also in package liblxc-common 1:5.0.1-0ubuntu6
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)

The problem could be overcome with:

sudo apt-get install liblxc-common --reinstall

which resulted in output

Preparing to unpack .../liblxc-common_1%3a5.0.1-0ubuntu6_amd64.deb ...
Unpacking liblxc-common (1:5.0.1-0ubuntu6) over (1:5.0.1-0ubuntu6) ...

I have seen the same type of problem before with other packages.

I would have expected apt-get to correctly sequence all necessary actions on its own.

These are related events in my apt history:

Start-Date: 2022-10-30 05:33:09
Commandline: apt-get install lxc
Requested-By: ubuntu (1000)
Install:
liblxc-common:amd64 (1:5.0.0~git2209-g5a7b9ce67-0ubuntu3, automatic)

Start-Date: 2023-01-28 11:06:34
Commandline: apt-get dist-upgrade
Requested-By: ubuntu (1000)
Upgrade:
liblxc-common:amd64 (1:5.0.0~git2209-g5a7b9ce67-0ubuntu3, 1:5.0.1-0ubuntu6)

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: apt 2.7.3
ProcVersionSignature: Ubuntu 6.5.0-5.5-generic 6.5.0
Uname: Linux 6.5.0-5-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.27.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Sat Sep 16 11:12:36 2023
InstallationDate: Installed on 2021-07-01 (807 days ago)
InstallationMedia: Kubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
SourcePackage: apt
UpgradeStatus: No upgrade log present (probably fresh install)

[Julian Andres Klode (juliank)]

Packages need to declare the appropriate Replaces and Breaks (or Conflicts if no later version of the package previously shipping the file exists)

[Heinrich Schuchardt (xypron)]

Hello Julian,

liblxc-common_5.0.1-0ubuntu6_amd64.deb and apparmor_4.0.0~alpha2-0ubuntu3_amd64.deb actually both contain
/etc/apparmor.d/usr.bin.lxc-start

Why does apt not report this when I run

sudo apt-get install liblxc-common --reinstall

Instead it completes the configuration of all updates. Isn't there still an apt issue lurking here?

Regards

Heinrich

[Alex Murray (alexmurray)]

Apologies for this - I am working on an update now to resolve it.

[Alex Murray (alexmurray)]

Uploaded in apparmor 4.0.0~alpha2-0ubuntu4 - currently waiting to build etc - https://launchpad.net/ubuntu/mantic/+queue?queue_state=3&queue_text=apparmor

[Launchpad Janitor (janitor)]

This bug was fixed in the package apparmor - 4.0.0~alpha2-0ubuntu4

---------------
apparmor (4.0.0~alpha2-0ubuntu4) mantic; urgency=medium

  * Remove conflicting profile for usr.bin.lxc-start (LP: #2036302)
    - d/p/u/userns-unconfined-profiles.patch: Don't ship a profile for
      usr.bin.lxc-start as this is already shipped in liblxc-common
    - debian/apparmor.install: Remove usr.bin.lxc-start profile

 -- Alex Murray <email address hidden> Mon, 18 Sep 2023 10:59:37 +0930