Talk: Cannot launch libvirt virtual machines after upgrade to Fedora 40

[kparal (Kamil Páral)]

Please see the Common Issue for solution/workarounds:

Cannot launch libvirt virtual machines after upgrade to Fedora 40

Problem If you use libvirt-based virtual machines (via GNOME Boxes, Cockpit, virt-manager, or command-line libvirt tools) and you upgrade to Fedora 40, you may find that attempting to start a virtual machine (especially a system session one) triggers multiple SELinux alerts and may fail to work with an error like this one: libvirt.libvirtError: can’t connect to virtlogd: Unable to open system token /run/libvirt/common/system.token: Permission denied (You can check whether you see this error…