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. ** Also affects: apparmor (Ubuntu) Importance: Undecided Status: New ** Changed in: libvirt (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apparmor in Ubuntu. https://bugs.launchpad.net/bugs/1808044 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 Status in apparmor package in Ubuntu: New Status in libvirt package in Ubuntu: Incomplete Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1808044/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp