Public bug reported: Every time libvirt has an update the system needs to be rebooted for KVM/QEMU to start working again. These are the errors I get on updates of the package.
ProblemType: Package DistroRelease: Ubuntu 16.04 Package: libvirt-bin 1.3.1-1ubuntu10.24 ProcVersionSignature: Ubuntu 4.4.0-128.154-generic 4.4.131 Uname: Linux 4.4.0-128-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 Date: Thu Jun 14 06:20:30 2018 ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2018-02-13 (120 days ago) InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.8) ProcCmdline: BOOT_IMAGE=/vmlinuz-4.4.0-128-generic root=/dev/mapper/hostname--vg-root ro SourcePackage: libvirt Title: package libvirt-bin 1.3.1-1ubuntu10.24 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.default.libvirt-bin: [modified] modified.conffile..etc.init.libvirt-bin.conf: [modified] modified.conffile..etc.libvirt.libvirtd.conf: [modified] modified.conffile..etc.libvirt.qemu.networks.default.xml: [modified] mtime.conffile..etc.default.libvirt-bin: 2018-03-28T10:46:39.092622 mtime.conffile..etc.init.libvirt-bin.conf: 2018-03-28T10:45:01.014046 mtime.conffile..etc.libvirt.libvirtd.conf: 2018-03-28T10:44:01.978904 mtime.conffile..etc.libvirt.qemu.networks.default.xml: 2018-03-27T14:07:06.102788 ** Affects: libvirt (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1776919 Title: package libvirt-bin 1.3.1-1ubuntu10.24 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1776919/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs