package libvirt-daemon-system 4.0.0-1ubuntu8.5 failed to install/upgrade: installed libvirt-daemon-system package post-installation script subprocess returned error exit status 100

[Dylan van Krieken]

Libvirt has problems

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: libvirt-daemon-system 4.0.0-1ubuntu8.5
ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18
Uname: Linux 4.15.0-38-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
AptOrdering: NULL: ConfigurePending
Architecture: amd64
Date: Mon Dec 10 17:21:06 2018
DpkgHistoryLog:
 Start-Date: 2018-12-10 17:21:05
 Commandline: apt-get install -y macchanger
 Requested-By: elysium (1000)
DpkgTerminalLog:
 Setting up libvirt-daemon-system (4.0.0-1ubuntu8.5) ...
 Enabling libvirt default network
 E: Command line option --mode is not understood in combination with the other options
 dpkg: error processing package libvirt-daemon-system (--configure):
  installed libvirt-daemon-system package post-installation script subprocess returned error exit status 100
ErrorMessage: installed libvirt-daemon-system package post-installation script subprocess returned error exit status 100
InstallationDate: Installed on 2018-08-07 (126 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-4.15.0-38-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
Python3Details: /usr/bin/python3.6, Python 3.6.6, python3-minimal, 3.6.5-3ubuntu1
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
SourcePackage: libvirt
Title: package libvirt-daemon-system 4.0.0-1ubuntu8.5 failed to install/upgrade: installed libvirt-daemon-system package post-installation script subprocess returned error exit status 100
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.libvirt.nwfilter.allow-arp.xml: 2018-08-12T14:11:26.664244
mtime.conffile..etc.libvirt.nwfilter.allow-dhcp-server.xml: 2018-08-12T14:11:26.648244
mtime.conffile..etc.libvirt.nwfilter.allow-dhcp.xml: 2018-08-12T14:11:26.684243
mtime.conffile..etc.libvirt.nwfilter.allow-incoming-ipv4.xml: 2018-08-12T14:11:26.672244
mtime.conffile..etc.libvirt.nwfilter.allow-ipv4.xml: 2018-08-12T14:11:26.572246
mtime.conffile..etc.libvirt.nwfilter.clean-traffic.xml: 2018-08-12T14:11:26.616245
mtime.conffile..etc.libvirt.nwfilter.no-arp-ip-spoofing.xml: 2018-08-12T14:11:26.632245
mtime.conffile..etc.libvirt.nwfilter.no-arp-mac-spoofing.xml: 2018-08-12T14:11:26.608245
mtime.conffile..etc.libvirt.nwfilter.no-arp-spoofing.xml: 2018-08-12T14:11:26.572246
mtime.conffile..etc.libvirt.nwfilter.no-ip-multicast.xml: 2018-08-12T14:11:26.624245
mtime.conffile..etc.libvirt.nwfilter.no-ip-spoofing.xml: 2018-08-12T14:11:26.580246
mtime.conffile..etc.libvirt.nwfilter.no-mac-broadcast.xml: 2018-08-12T14:11:26.656244
mtime.conffile..etc.libvirt.nwfilter.no-mac-spoofing.xml: 2018-08-12T14:11:26.588246
mtime.conffile..etc.libvirt.nwfilter.no-other-l2-traffic.xml: 2018-08-12T14:11:26.700243
mtime.conffile..etc.libvirt.nwfilter.no-other-rarp-traffic.xml: 2018-08-12T14:11:26.692243
mtime.conffile..etc.libvirt.nwfilter.qemu-announce-self-rarp.xml: 2018-08-12T14:11:26.600245
mtime.conffile..etc.libvirt.nwfilter.qemu-announce-self.xml: 2018-08-12T14:11:26.640244
mtime.conffile..etc.libvirt.qemu.networks.default.xml: 2018-09-06T19:21:26.035089

[Christian Ehrhardt  (paelzer)]

Hi and thanks for your report,
this does not have the complete logs, so I might struggle to see the root cause, lets try.

The interesting lines I see int he bug are:
E: Command line option --mode is not understood in combination with the other options
 dpkg: error processing package libvirt-daemon-system (--configure):
  installed libvirt-daemon-system package post-installation script subprocess returned error exit status 100

That is not an error I have seen before.
The failing script is /var/lib/dpkg/info/libvirt-daemon-system.postinst

The only "--mode" I see in there is on:
  install --mode 644 /dev/null "$LOCAL_APP_PROFILE"
Which is added by dh_apparmor (adding apparmor bug task for that).

One such section looks like:
304 LOCAL_APP_PROFILE="/etc/apparmor.d/local/usr.lib.libvirt.virt-aa-helper"
305
306 test -e "$LOCAL_APP_PROFILE" || {
307 mkdir -p `dirname "$LOCAL_APP_PROFILE"`
308 install --mode 644 /dev/null "$LOCAL_APP_PROFILE"
309 }

There is no conditional in between, so this will always be:
 $ install --mode 644 /dev/null "/etc/apparmor.d/local/usr.lib.libvirt.virt-aa-helper"
I don't see where that would fail.

Maybe the apparmor developers know a bit more about this, for libvirt I'd not know where to continue on this.