There seems to be a problem with the apparmor profile of libvirt (see bug #54579). After adding the line
/dev/ttyS* rw, to /etc/apparmor.d/abstractions/libvirt-qemu and reloading the profile it worked for me. -- map serial port throws "chardev: opening backend "tty" failed" https://bugs.launchpad.net/bugs/578527 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs