Description of problem: Some recent update is preventing root from rebooting. From "strace repboot" its a result of a message "org.freedesktop.DBus.Err" from dbus. It may be significant that the system is running without a desktop. I had done: systemctl disable graphical.target; system disable gdm.service I can no longer use systemctl to reenable. (Why isn't there a "no desktop" spin?) Version-Release number of selected component (if applicable): systemd-220-5.fc23.x86_64 polkit-0.112-9.fc22.x86_64 glibc-2.21.90-15.fc23.x86_64 kernel-4.1.0-0.rc6.git2.1.fc23.x86_64 How reproducible: 100% Steps to Reproduce: 1.reboot 2. 3. Actual results: [root@fc23-64 ~]# reboot Failed to start reboot.target: Access denied Broadcast message from root@fc23-64 on pts/0 (Mon 2015-06-08 12:19:21 EDT): The system is going down for reboot NOW! [root@fc23-64 ~]# Expected results: reboot Additional info: Basically root cannot execute any systemctl command: [root@fc23-64 ~]# systemctl -a Failed to list units: Access denied [root@fc23-64 ~]#
*** This bug has been marked as a duplicate of bug 1224211 ***
The same bug for me! Fedora 22 (GNOME) :(
After doing Ctrl+Alt+Del 2 times I finally rebooted...
I found a workaround for the most recent problem in F22: dnf -y distro-sync # this might create a systemd SELinux problem if ! (systemctl list-sockets >/dev/null && systemctl list-dependencies >/dev/null) then dnf -y reinstall systemd if systemctl list-sockets >/dev/null && systemctl list-dependencies >/dev/null then echo "Update-related systemd SELinux problem: FIXED" else echo "sorry, systemd still has SELinux trouble" fi fi i.e. just performing 'dnf -y reinstall systemd' solved it for me
And yes, systemctl daemon-reexec also works and is even faster ...
F22 after dnf update not able to reboot. "systemctl daemon-reexec" fixed it.